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Subject: comp.sys.ibm.pc.hardware.* Frequently Asked Questions (FAQ) Part 3/5

This article was archived around: 22 Mar 1998 19:29:53 -0500

All FAQs in Directory: pc-hardware-faq
All FAQs posted in: comp.sys.ibm.pc.hardware.video, comp.sys.ibm.pc.hardware.comm, comp.sys.ibm.pc.hardware.storage, comp.sys.ibm.pc.hardware.cd-rom, comp.sys.ibm.pc.hardware.systems, comp.sys.ibm.pc.hardware.networking, comp.sys.ibm.pc.hardware.chips, comp.sys.ibm.pc.hardware.misc
Source: Usenet Version


Archive-name: pc-hardware-faq/part3 Last-modified: 1997/11/10 Version: 1.25
S) 4.0 Storage/Retrieval Devices Q) 4.1 Why do I lose x Meg on my hard drive? [From: Mike Long <mike.long@analog.com>] The problem here is that there are two different measures of hard drive storage, both called megabytes. Computer hardware works on the basis that one megabyte equals 2^20, or 1048576 bytes. Hard drive manufacturers, on the other hand, use a megabyte that has 1000000 bytes, because it makes the drive looks larger. When buying a hard drive, you should expect to lose almost 5% of what the manufacturer claims the drive size to be. The manufacturers are not totally at fault. The first track of the drive is used for the partition table and master boot record. The amount of data lost here depends on your drive parameters; usually there are between 32 and 64 sectors (512 bytes/sector) on this first track, so you lose between 16384 and 32768 bytes that way. Additional space is taken up by two hidden files on your boot drive. If you are running MS-DOS, these files are IO.SYS and MSDOS.SYS. If you are running PC-DOS, the names are IBMIO.COM and IBMDOS.COM. [From: ralf@alum.wpi.edu (Ralph Valentino)] Many drives these days advertise unformatted capacity. The actual formatted capacity may be significantly lower than this as space is taken up marking tracks, sectors, CRC's, etc. Exactly how much lower depends on the the size of the sectors. For instance, placing 1k sectors on the disk instead of the usual 512 byte ones may slightly increase the usable storage space on the disk. Note, however, that many OS's insist you stick to the 512 byte sectors so this option is best left alone. A large number of drives also do auto-mapping of bad sectors; when a sector goes bad, it will automatically use a spare it kept aside during the format. This is very handy as the OS never needs to deal with the problem and some OS's, like DOS, will mark a whole cluster bad when a single sector goes bad. These spare sectors, as many as one per track, remain hidden from the OS but still take up space on your hard drive. When you get to drives larger than 1.0 gig (SCSI), many host adapter BIOS's can not deal with this as the BIOS was never designed to handle more than 1024 cylinders, 64 heads, and 32 sectors per track. (1024 * 64 * 32 * 512bytes/sec = 1.0 gig). Luckily, some OS's (like OS/2) ignore the BIOS all together and read the actual geometry from the disk itself. If, however, you're not using such an OS and you notice that you only have 1.0 gig available, you may want to check with the manufacturer of your SCSI host adapter to see if a newer BIOS is available. Q) 4.2 *Should I get an IDE/floppy/SCSI/parallel port tape drive? Q) 4.3 I have two floppies. Can I add a floppy based tape drive? [From: herbst@techunix.technion.ac.il (Herbst OMR)] It depends. On all modern tape drives: yes. Some old tape drives cannot do this (my old Jumbo). If you have one of these, you will have to buy either a 4-floppy controller or a dedicated tape controller. Q) 4.4 How fast is a tape drive? Will a dedicated controller improve this? [From: herbst@techunix.technion.ac.il (Herbst OMR)] The tape connected through a floppy interface is limited to the floppy speed. On ATs 500Kbit/S. On old XT 250Kbit/S. With card support for 2.88MB floppy, 1Mbit/S. Many of the newer cards support this transfer rate. If the card operate at 500Kbit/S, a dedicated controller card will speed up the tape by a factor of two. In many cases, those cards do hardware compression, helping even more. Q) 4.5 What is QIC80, QIC40? [From: herbst@techunix.technion.ac.il (Herbst OMR)] QIC stands for Quarter-Inch Cartridge. QIC80 is the standard for 80MB tapes, QIC40 for 40MB tapes. Both standard allows for extended length cassettes of 300ft which gives 120MB and 60MB respectively. Q) 4.6 How come I can't fit as much stuff on my tape drive as they claim? Most tape drives these days advertise capacity with an expected compression ratio of 2:1. If you are backing up compressed files (.Z,.ZIP, .ARC, .JPEG, and so forth) then the drive's own compression scheme will not be as effective. For these cases, the actual capacity of the tape will be closer to the "uncompressed" capacity. A table from herbst@techunix.technion.ac.il (Herbst OMR) shows: stated capacity standard tape length # tracks 80MB QIC40 200ft (normal) 15 120MB QIC40 300ft (extended) 15 160MB (rarely) QIC80 200ft 28 250MB QIC80 300ft 28 For all the recording density is 12500 ftpi; max tape speed is 90 ips. A second reason is that some tapes assume you will be taking full advantage of their "streamers". Streaming collects a number of tape blocks and writes them all at once, preventing the need for backing up the tape after each block. This positions the blocks closer together on the tape. If your backup program is slow, some streamers won't be quite as effective. If you hear the tape drive motor backing up the tape alot on writes, this could be the case. Q) 4.7 Are Colorado/Conner/Archive/... tapes compatible with each other? [From: herbst@techunix.technion.ac.il (Herbst OMR)] If you use the same software: Yes. If you want to use different software, then turn compression off. Compression done in software on those drives is not compatible. Q) 4.8 How does the drive/software know how long the tape is? [From: herbst@techunix.technion.ac.il (Herbst OMR)] The magnetic tape has holes in it. Inside the cassette enclosure there is a small mirror. The drive sends an IR beam through it. Near the end of tape the drive receives it. If the IR receiver is dusted, the drive may 'reel off' the cassette. Q) 4.9 What are all those QICs? [From: herbst@techunix.technion.ac.il (Herbst OMR)] (Thanks to Karl-Peter Huestegge and Jan Christiaan van Winkel) QIC-11 is not an Industry Standard and there exist some incompatible versions. Standard Capacity Tracks Speed Rec-density Flux-Trans Cartridges ---------------------------------------------------------------------------- QIC-11 15/30MB (300ft) 4/9 90ips 20/40MB (450ft) 4/9 90ips 6400ftpi DC300XL 10000ftpi DC300XLP 27/60MB (600ft) 4/9 90ips 10000ftpi DC600A QIC-24 45MB (450ft/137m) 9 90ips 8000bpi 10000ftpi 55MB (555ft/169m) 9 90ips 8000bpi 10000ftpi 60MB (600ft/183m) 9 90ips 8000bpi 10000ftpi DC600A QIC-120 125MB (600ft/183m) 15 72ips 10000bpi 12500ftpi DC600A QIC-150 155MB (600ft/183m) 18 72ips 10000bpi 12500ftpi DC600XTD DC6150 QIC-150 250MB (1000ft/305m) 18 72ips 10000bpi 12500ftpi QIC-320 320MB (600ft/183m) 26 72ips 16000bpi 20000ftpi DC6320 QIC-525 525MB (1000ft/305m) 26 72ips 16000bpi 20000ftpi DC6525 * QIC-1000 1000MB (760ft) * QIC-2GB * QIC-10GB Q) 4.10 Which QICs are read/write compatible? [From: herbst@techunix.technion.ac.il (Herbst OMR)] The left column should be read: "Tape drives designed for the QIC-??? standard *should* be able to read/write the following Tape formats:" TAPE-DRIVES | Tape - Formats | designed for: | QIC-11 | QIC-24 | QIC-120 | QIC-150 | QIC-320 | QIC-525 | ----------------|--------|--------|---------|---------|---------|---------| QIC-11 | R W | | | | | | QIC-24 | R W | R W | R | | | | QIC-120 | R - | R - | R W | R | | | QIC-150 | R - | R - | R W | R W | | | QIC-320 | R - | R - | R W | R W | R W | ? ? | QIC-525 | R | R | R W | R W | R W | R W | --------------------------------------------------------------------------- Q) 4.11 What is the CMOS/jumper setting for my hard drive? [From: Carsten Grammes (cagr@rz.uni-sb.de)] Configuration of IDE Harddisks ============================== last update: 24 March 1994 collected by Carsten Grammes (cagr@rz.uni-sb.de) and published on comp.sys.ibm.pc.hardware as part of the FAQ. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! There is explicitly NO WARRANTY that the given settings are correct or harmless. (I only collect, I do not check for myself!!!). There is always the possibility that the settings may destroy your hardware! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Since I hope however that only well-minded people undergo the effort of posting their settings the chance of applicability exists. If you should agree or disagree with some setting, let me know immediately in order to update the list. If you possess a HD not mentioned here of which you know BIOS and/or jumper settings, please mail them to me for the next update of the list! Only IDE (AT-Bus) Harddisks will be accounted for. If not specified the Landing Zone should be set equal to the number of cylinders. If not specified the 'Write Precompensation' should be set 65535. (There are BIOSes that don't even ask for it). On most IDE disks these values are dummies, relicts from old MFM times. The capacity given here is sometimes in Megabytes (1000000 bytes) and sometimes in MB (1048576 bytes). Don't worry! The only right way to calculate the capacity is cyl * heads * sec/tr * 512 which gives the capacity in bytes! Dividing by 1000000 or 1048576 gives the capacity in Megabytes or MB respectively. If you get problems when installing 2 HD's with correct BIOS and jumper settings, try to swap drive 1 and 2, often that helps. Please don't flame me because of the 'layout' of the list. Since the available information is so strongly varying I often only pack _YOUR_ mail to me into the list. If someone feels encouraged to improve this, I would be glad to receive a 'lifted' version. But there should be all info contained! Since the list is rather long, I give here a summary of all drives described therein. ************* ALPS Alps alps DR311C ************* CDC Cdc cdc BJ7D5A 94155-48 94335-100 94166-141 94171-300 736 SABRE BJ7D5A 94295-51 94355-55 94166-182 94171-344 850 SABRE BJ7D5A 94155-57 94355-100 94186-383 94181-574 1230 SABRE 94155-21 94155-67 94155-135 94186-383H 94208-51 94155-25 94155-77 94205-77 94186-442 94211-91 94155-28 94155-85 94355-150 94216-106 94221-190 94155-36 94155-86 94335-150 94356-200 94351-172 94155-38 94205-51 94156-48 94161-86 368 SABRE 94335-55 94156-67 94166-101 94161-121 500 SABRE ************* CONNER Conner conner CP342 CP2034 CP2084 CP3044 CP3104 CP3204 CP30084 CP344 CP2044 CP3000 CP2124 CP3111 CP3204F CP30104 CP2024 CP2064 CP3024 CP3184 CP3114 CP30064 CP30084E CP30174E CP30174E CP3304 CP3544 CP30204 CP30204 CP3364 CP3554 CP30254 CP30254 CP3504 CP30101 ************* FUJITSU Fujitsu fujitsu M2611T M2612ET M2613ET M2614ET M2618T M2622T M2623T M2624T ************* HEWLETT PACKARD Hewlett Packard hewlett packard HP Hp hp C2233 ************* IBM Ibm ibm WDA-L160 WDA-L42 IBM 85 MB IDE (number not known) ************* JVC Jvc jvc JD-E2085M ************* KALOK Kalok kalok KL3100 KL3120 ************* MAXTOR Maxtor maxtor LXT-200A 2585A 7120A LXT-213A 7040A 7131AT LXT-340A 7060A 7213A LXT437A 7080A 7245A LXT535A ************* MICROPOLIS Micropolis micropolis 2105A 2112A ************* MICROSCIENCE Microscience microscience 7100-00 8040-00 7070-20 7100-00 7100-20 8040 ************* MINISCRIBE Miniscribe miniscribe 8225AT 8051AT 8450AT ************* NEC Nec nec D3735 D3755 D3756 D3741 ************* QUANTUM Quantum quantum 40AT LPS52AT ELS42AT 80AT LPS80AT ELS85AT 120AT LPS105AT ELS127AT 170AT LPS120AT ELS170AT 210AT LPS170AT LPS540A 425AT LPS240AT ************* RODIME Rodime rodime RO3058A RO3088A RO3095A RO3128A RO3135A RO3059A RO3089A RO3129A RO3139A RO3209A RO3259A ************* SAMSUNG Samsung samsung SHD-3101A SHD-3061A SHD-3062A ************* SEAGATE Seagate seagate ST1057a ST1144a ST138a ST274a ST3283a ST1090a ST1156a ST1400a ST280a ST351ax ST1102a ST1162a ST1401a ST3051a ST9051a ST1111a ST1186a ST1480a ST3096a ST9077a ST1126a ST1201a ST157a ST3120a ST9096a ST1133a ST1239a ST2274a ST3144a ST9144a ST3243A ST125a ST2383a ST325ax ST351AX ST9235A (maybe others) ************* TEAC Teac teac SD-3105 ************* TOSHIBA Toshiba toshiba MK1122FC MK2024FC MK2124FC MK2224FC MK234FCH MK234FCF ************* WESTERN DIGITAL Western Digital western digital WDAC140 WDAC280 WDAC1170 WDAC2120 WDAC2170 WDAC2200 WDAC2250 WDAC2340 WDAC2420 WD93044-A WDAH260 WDAH280 WDAP4200 WD93048A And here it comes... ************* ALPS Alps alps ************* Manufacturer: ALPS ELECTRIC Co. BIOS settings: Model Heads Cylinders Sectors L-Zone Size DR311C 14 868 17 868 105 MB (Real geometry of drive: 2108 cyl. 2 heads 49 sectors/track 32k internal cache) Jumpers: C/D -ACT -DSP -HSP MS3 SYNC DC MS0 MS1 MS2 Master drive & no slaves present: jumpers on C/D and -ACT. No other jumpers installed, function unknown. *************************** C D C *********************************** I have the feeling that not all of these are IDE... ------------------------------------------------------------------------------- MODEL ST-506 CAP CYL H RWC WPC ENC RATE ACCESS SPT COMMENTS ------------------------------------------------------------------------------- BJ7D5A 77731614 5.25FH 23 670 4 375 375 M 5 17 BJ7D5A 77731608 5.25FH 29 670 5 375 375 M 5 17 BJ7D5A 77731613 733 5 - - 5 17 94155-21 WREN-1 5.25FH 21 697 3 698 698 M 5 28 MS 17 94155-25 24 697 4 698 128 M 5 17 94155-28 24 697 4 698 128 M 5 17 94155-36 WREN-1 5.25FH 36 697 5 698 698 M 5 28 MS 17 94155-38 31 733 5 734 128 M 5 17 94155-48 WREN-2 5.25FH 40 925 5 926 926 M 5 28 MS 17 94295-51 WREN-2 5.25FH 43 989 5 990 990 M 5 28 MS 17 94155-57 WREN-2 5.25FH 48 925 6 926 926 M 5 28 MS 17 94155-67 WREN-2 5.25FH 56 925 7 926 926 M 5 28 MS 17 94155-77 WREN-2 64 925 8 926 926 M 5 17 94155-85 WREN-2 5.25FH 71 1024 8 - - M 5 28 MS 17 94155-86 WREN-2 5.25FH 72 925 9 926 926 M 5 28 MS 17 94205-51 5.25HH 43 989 5 990 128 M 5 32 MS 17 94335-55 3.5" 46 - 5 - - M 5 25 MS 17 94335-100 3.5" 83 - 9 - - M 5 25 MS 17 94355-55 SWIFT-2 3.5" 46 - 5 - - M 5 16.5 MS 17 94355-100 3.5" 83 - 9 - - M 5 16.5 MS 17 ST-506 RLL 94155-135 WREN-2 5.25HH 115 960 9 - - R 7.5 28 MS 26 94205-77 WREN-2 5.25HH 63 989 5 - - R 7.5 28 MS 26 94355-150 3.5" 128 - 9 - - R 7.5 16.5 MS 26 94335-150 3.5" 128 - 9 - - R 7.5 25 MS 26 ESDI 94156-48 WREN-2 40 925 5 926 926 N 5 28 MS 94156-67 WREN-2 56 925 7 926 926 N 5 94156-86 WREN-2 72 925 9 926 926 N 5 94166-101 WREN-3 5.25FH 86 969 5 970 970 N 10 16.5 MS 94166-141 WREN-3 5.25FH 121 969 7 970 970 N 10 16.5 MS 94166-182 WREN-3 5.25FH 155 969 9 970 970 N 10 16.5 MS 94186-383 WREN V 5.25FH 383 1412 13 - - R/N 10 8.3 MS 94186-383H WREN V 5.25FH 383 1224 15 - - R/N 10 14.5 MS 94186-442 WREN V 5.25FH 442 1412 15 - - R/N 10 16 MS 94216-106 WREN-3 5.25FH 91 969 - - - N 10 16.5 MS 94356-200 SWIFT 3 3.5" 172 - 9 - - R/N 10 16.5 MS WREN III 5.25HH 106 969 5 - - R/N 10 18 MS SCSI 94161-86 WREN-3 5.25FH 86 969 - - - 16.5 MS 94161-121 WREN-3 5.25FH 121 969 - - - 16.5 MS 94171-300 WREN-4 5.25FH 300 1365 9 - - R 16.5 MS 94171-344 WREN V 5.25FH 344 1549 9 - - Z 9-15 17.5 MS 94181-574 WREN V 5.25FH 574 1549 15 - - Z 9-15 16 MS 94208-51 94211-91 WREN-3 5.25FH 91 969 - - - 16.5 MS 94221-190 WREN V 5.25HH 190 1547 5 - - R 10-15 8.3 MS 94351-172 SWIFT 4 3.5" 172 - 9 - - 10 16.5MS WREN III 5.25HH 106 969 5 - - R/N 10 18 MS SMD 368 SABRE 8" 368 - 10 - - 1.8 18 MS 500 SABRE 8" 500 - 10 - - 2.4 18 MS 736 SABRE 8" 741 - 15 - - 1.8 16 MS 850 SABRE 8" 851 - 15 - - 2.4 16 MS 1230 SABRE 8" 1236 1635 15 - - 2.4 ------------------------------------------------------------------------------- CAP = CAPACITY IN FORMATTED MEGABYTES CYL = MAXIMUM NUMBER OF CYLINDER H = NUMBER OF DATA HEADS RWC = START REDUCED WRITE CURRENT WPC = START WRITE PRECOMP ENC = ENCODING METHOD R=RLL, M=MFM,Z=ZBR RATE = TRANSFER RATE IN MEGABITS/SEC ACCESS= AVERAGE ACCESS TIME SPT = SECTORS/TRACK X 512 bytes FH = FULL HIGH FORM FACTOR HH = HALF HIGH FORM FACTOR R = RLL (run length limited) N = NRZ (non return to zero) M = MFM (modified frequency modulation) SA = STAND ALONE Z = ZBR Jumpers are not know (yet). ************************** CONNER Conner conner ************************** Conner drives are low level formatted at the factory. It is only necessary to r un SETUP, FDISK and DOS FORMAT. Model Hds Cyls Sec Pcomp L-Zone Type Table LED CP342 4 805 26 0 805 17 n/a A CP344 4 805 26 0 805 17 1 A CP2024 2 653 32 0 653 2 3 n/a CP2034 2 823 38 0 823 *UT 3 n/a CP2044 4 552 38 0 552 17 3 n/a CP2064 4 823 38 0 823 *UT 3 n/a CP2084 8 548 38 0 548 *UT 3 n/a CP3000 2 1047 40 0 1047 17 1 A CP3024 2 636 33 0 636 2 1 A CP3044 1 1047 40 0 1047 17 1 A 5 980 17 (also reported) CP2124 8 560 53 0 560 *UT 3 n/a CP3184 6 832 33 0 832 *UT 1 A CP3104 8 776 33 0 776 *UT 1 A CP3111 8 833 33 0 833 *UT 1 A(?) CP3114 8 832 33 0 832 *UT 1 A CP3204 16 683 38 0 683 *UT 2 B CP3204F 16 683 38 0 683 *UT 3 B CP30064 4 762 39 0 762 *UT 2 B CP30084 8 526 39 0 526 *UT 2 B CP30104 8 762 39 0 762 *UT 2 B CP30084E 4 903 46 0 903 *UT 4 C CP30174E 8 903 46 0 903 *UT 4 C CP30204 16 683 38 0 683 *UT 4 C CP30254 see below CP3304 16 659 63 0 659 *UT 4 D CP3364 16 702 63 0 702 *UT 4 C CP3504 16 987 63 0 987 *UT 4 D CP3544 16 1024 63 0 1024 *UT 4 C CP3554 16 1054 63 0 1054 *UT 3 B Table 1 jumper settings: Single drive = Jumper ACT and C/D Master drive = Jumper ACT, C/D and DSP. Slave drive = No jumpers installed. Table 2 jumper settings: Single drive = Jumper E2 Master drive = Jumper E1 & E2 Slave drive = No jumpers installed. Table 3 jumper settings: Single Drive = Jumper C/D Master Drive = Jumper C/D and DSP Slave Drive = No jumpers installed Table 4 jumper settings: Single and Master drive = Jumper C/D Slave drive = no jumper ALL CONNER 20 MBYTE DRIVES USE DRIVE TYPE 2. ALL CONNER 40 MBYTE DRIVES USE DRI VE TYPE 17. * UT = Universal translate. Select a drive type that is close to, but does not ex ceed the megabyte capacity of the drive. The drive will translate to the megaby te capacity you have selected. LED A: J-4 B: J-1 C: J-5 D: J-3 Pin 1 = + Pin 3 = + Pin 3 = + Pin 3 = + Pin 2 = - Pin 4 = - Pin 4 = - Pin 4 = - Conner drives are low level formatted at the factory. It is only necessary to run SETUP, FDISK, and DOS FORMAT. Comment concerning CP3000 jumpers: According to your list, all Conners should be 2 or 3 jumpers only. That's why I'm puzzled with the 4-jumper Conner CP-3000. In addition to the common jumpers present in Conner - C/D, DSP & ACT, there is an extra one: HSP By trial and error, HSP seems to follow DSP setting. > When I installed a Conner CP3204F (203 MB) as master and a WD Caviar 2200 > (203 MB) as slave, both with and without the "CP" jumper, the Caviar had > seemingly normal behaviour. However, when doing writes to the Caviar, once > in a while it would overwrite directories etc. Using FASTBACK was almost > impossible. > > The workaround is to install the Caviar as the master, and the Conner > as the slave. and: information: I am slaving a Conner CP3000 40Meg to a Western Digital Caviar 2200 212 Meg. the results: I first found out that pin 1 on the CP3000 was LABELED INCORRECTLY on the PC board....had to flip the IDE cable (which made the cable install much more cleanly- no flips....shoulda been my first clue that something was not correct, oh well) next: I had to DOS-format the CP3000 ALONE on the PC system before it wanted to work with the WD caviar.... weird also: the WD Caviar is partitioned: C:\ was the first 100 Meg and D:\ was the second 100 Meg. After the CMOS was correctly configured and the drives brought online, the PC AUTOMATICALLY assigned the drives as thus: C:\ first 100 Meg partition on the WD D:\ 40 Meg Conner E:\ second 100 Meg partition on the WD even FDISK reports the above. Conner CP 30254 Capacity: 250 MB Dimensions: 3,5 inch, lowprofile (1 inch) IDE interface Cylinders Heads Sectors Physical specs.: 1985 4 62 Logical specs.: 895 10 55 seek time 12 ms Rotation speed 4542 rpm jumpers C/D 1 drive master Y 2 drive master Y 2 drive slave N/Y ---- Subject: Re: Conner CP 30254 I tried several combination and even called Conner for info on configuring two Conner drives as master (301??, a 300+ M Connder drive) and slave (30254). The jumpers that worked are: Pins Jumpers Master 1-2 Y (factory setting) 3-4 Y (factory setting) Slave 1-2 N 3-4 Y (factory setting) So the C/D should mape to Y/N instead of N/Y in the table. -- Some notes made whilst configuring a pair of Conner IDE drives for Master/Slave operation from Hyundai Super-LT6 Laptop 386sx-20. Final Working Configuration Drive 1: CP3000 40 Mb Type 17 977 cyl 5 hds 17 sec/trk Pre 300 LZ 977 Verified configuration as per Grammes' list. HSP does need to follow DSP (empirically) - failure to do so produced behaviour such as LCD screen display scrambling on ROM boot. Single, Master and Slave configurations all checked out. Drive 2: CFA170A 170 Mb Unknown type 332 cyl 16 hds 63 sec/trk Pre --- LZ --- Did not appear on Grammes' list. Successful configuration resulted close to that shown as Table 3 for Conner drives, as follows: Single 2 links (not C)/D and (not A)/(?) Master 1 link (not C)/D Slave 0 links One link is listed here as (not A)/(?) due to a hole being drilled through the (?) part of the silk screening ... The drives worked together as either slave or master ... -- Connor CP30101 760 cyl, 8 hds, Precomp -1, Landing 760, Sec/Track 39, ECC 7 Capacity 121.41M Model CP342 disk (40 Meg IDE drive) Single Drive: E5, E7 jumpers IN Master Drive: E6, E7 jumpers IN Slave Drive: E7 jumper IN In addition, this is an old disk drive. It was factory configured to use 3:1 interleave. This can cause timing problems with newer disk drives that are configured for 1:1 interleave when using the same IDE controller. The CONNER tech support person suggested I only use the CONNER drive as a SLAVE with the newer disk as the MASTER. This configuration (MAXTOR 7345A as MASTER and CONNER CP342 as SLAVE) has now been in use for over a week and seems to be working fine. ************************ FUJITSU Fujitsu fujitsu *************************** DETAILS OF FUJITSU DRIVES M261xT (Standard) M2614ET M2613ET M2612ET M2611T Heads (physical) 8 6 4 2 Cyl (physical) 1334 1334 1334 1334 Sec/trk 33 33 33 33 Speed (rpm) 3490 3490 3490 3490 Capacity 180MB 135MB 90MB 45MB +-----------------------------------------------+ | | +--+ | PSU | | CNH-2 | +--+ 1 | 1 | | . LED | | | CNH-1 9 CNH-3 Connector | | | 1 6..1 o o | 40-way | | . | | | IDE | | . | | | . | | | 12 | +--+ | +-----------------------------------------------+ Pin Function Position * 1- 2 Active mode 2- 3 Slave present mode 4- 5 Pin 27=IOCHRDY CNH-1 JUMPERS * 5- 6 Pin 27=RESERVED 7- 8 2 drive system * 8- 9 1 drive system 10-11 Pin 29=IRQ14 : Pin 31=RESERVED * 11-12 Pin 31=IRQ14 : Pin 29=RESERVED Pin Function Position 1- 2 SLAVE drive mode CNH-2 JUMPERS * 4- 5 MASTER drive mode 7- 8 ECC 4 bytes * 8- 9 ECC 7 bytes Pin Function Position 1- 2 Write protect enabled CNH-3 JUMPERS * 2- 3 Write protect disabled 4- 5 -6 Reserved Key: * (I guess!) marks factory default setting for jumper BIOS SETTINGS BIOS setting for the M2614ET in my system is 667 cylinders, 33 sectors and 16 heads. > I was trying to set my IDE drive in the subject above to a slave drive for > A Conner 170MB drive and contacting the support company gave me this answer (which works). The factory default on SW2 is On Off Off Off Off Off (1-6). This sets the drive to be a single drive. Setting SW2 to Off On On Off Off Off makes it a slave drive. SW1 has been set to On Off Off On (1-4) all along. MODEL CYLINDERS HEADS SECTORS CAPACITY (Million bytes) M2622T 1013 10 63 326.75 M2623T 1002 13 63 420.16 M2624T 995 16 63 513.51 There are 6 switches on the switch block on these drives. Only 4 of them have a use that I am aware of (from my M2624T manual): Master/Slave Master (*) SW1-5 OFF Slave SW1-5 ON ECC bytes 4 bytes (*) SW1-4 OFF 7 bytes SW1-4 ON Write Protect Disabled (*) SW1-3 OFF Enabled SW1-3 ON IO Channel Ready Disabled (*) SW1-1 OFF Enabled SW1-1 ON I have no idea about the function of SW1-2 and SW1-6. The values listed with a (*) are the factory default settings. M2618T 202MB Cyl/hd/spt 718 12 48 ********************* Hewlett Packard **************************** HEWLETT PACKARD Hewlett Packard hewlett packard HP Hp hp C2233 227 MB Cyl/hd/spt 733 12 53 ********************* IBM Ibm ibm **************************** WDA-L160 163 MB Cyl/hd/spt 984 10 34 WDA-L42 42MB Cyl/hd/spt 977 5 17 Jumpers for IBM WDA-L160: Fit JP2 for Master or single drive Remove JP2 and fit JP3 for Slave JP1 appears to be always fitted. Functions of other jumpers unknown at present. Position of jumpers: ----------------------------------------- | Drive Mechanism | | | ----------------------------------------- PCB . . . . . . . . JP 4 3 2 1 Also: IBM 85 M IDE (number not known) 10 Heads 984 Cylinders 17 Sectors 0 WPC 984 LZ Patches as for L160 above ********************* JVC Jvc jvc **************************** JD-E2085M 79 MB Cyl/hd/spt 973 4 43 *********************** KALOK Kalok kalok *************************** KALOK KL3100 105 MB BIOS: cyl 979 heads 6 sectors 35 KALOK KL3120 120 MB BIOS: Cyl 981 heads 6 sectors 40 The following jumper settings have been reported for KL3100 but are probably also valid for other Kalok drives. Single HD: o o o o o o o o o-o <-- same row as pin 1 of the IDE connector. Master (disk 1): o o o o o | o o o o o Slave: o o o o o | o o o o o These 5 pairs of pins are at the righthand side of the disk. ************************ MAXTOR Maxtor maxtor *************************** Model Cyls Heads Sectors Precomp Landing Zone ---------- ----- ----- ------- ------- ------------ LXT-200A 816 15 32 0 816 LXT-213A 683 16 38 0 683 LXT-340A 654 16 63 0 654 LXT437A 842 16 63 0 842 LXT535A 1036 16 63 0 1024 Jumpers are as follows: The bottom of the drive looks like this (well, sort of): | o o 1-2 | | o o 3-4 | | o o 5-6 | | o o 7-8 | | o o 9-10 | | | +[POWER] [IDE CONNECTOR]-----+ Single drive Dual Drive System Pin numbers Jumper System Master Slave ----------- ------ ------------ ------ ----- 1-2 Slave Drive remove remove install 3-4 Activity LED optional optional optional 5-6 Slave Present remove remove optional 7-8 Master Drive remove install remove 9-10 Sync Spindle remove (n/a) optional* remove * only one drive (the master) in an array should have this jumper installed. Hd Cyl spt Maxtor 2585A 10 981 17 Maxtor 7060A 16 467 17 62,0 J14 closed, J13 closed Maxtor 7060A 7 1024 17 59,5 J14 open, J13 open Maxtor 7060A 4 762 39 58,0 J14 closed, J13 open Maxtor 7060A 8 925 17 57,9 J14 open, J13 closed Maxtor 7120A 16 936 17 124,3 J14 closed, J13 closed Maxtor 7120A 14 1024 17 119,0 j14 open, J13 open Maxtor 7120A 8 762 39 116,0 J14 closed, J13 open Maxtor 7120A 15 900 17 112,0 J14 open, J13 closed Maxtor 7120A 8 824 33 106,2 J14 Jumpers for the above 2 drives: J11 I/O-channel ready ( open: disabled; close: enabled ) J13 see above J14 see above J15 operation-status ( open: normal; close: factory ) J J J J J 2 1 1 1 1 0 9 8 7 6 Power data-cable J16: Idle mode latch ( open: disabled; close: enabled ) J17: drive model ( open: 7060A; close 7120A ) J18: ECC Bytes ( open: 7 bytes; close: 4 bytes ) Master/Slave: drive is master and alone : J20 closed, J19 closed drive is master of two drives: J20 closed, J19 open drive is slave of two drives : J20 open , J19 closed Maxtor 7213A Default (power-up) AT BIOS Translation Parameters (others possible) Cyl Hds SpT MBytes 683 16 38 212 There are two sets of jumpers. A set of 5 and a set of 4. With the power and IDE connector toward you, the set of 5 is numbered (left to right) J16 - J20 , and the set of 4 is numbered (bottom to top) J22-J25. The only jumper of normal interest is J20. Jumper it for only drive in a single drive system, or master drive in a dual drive system. Remove the jumper J20 for slave drive in a dual drive system. J19 is a dummy and may be used to store the spare shunt if the drive is configured for a slave mode. Jumpers J17, J18, J24, J25 are factory reserved. Abnormal operation may occur if jumpered. Jumper 22 is sync spindle enabled/disabled (open=disabled) Jumper 23 is sync slave/master (open=slave) Jumper 16 is I/O Channel Ready (open=disabled) Maxtor 7245A (245Mb IDE; self-parking; Universal Translate): Drive type : User defineable Cyl Hds WPC LZ S/T 967 16 0 0 31 (WPC and LZ optional) Master(2): J20 closed Slave(2): J20 open (use J19 for shunt storage) Single: J20 closed Basic Specifications ------------------------------------------------------------------- Formated Data Sect. Average Model Capacity Cylinders Heads Disks Track Cache Seek Time 7080A 82.2 MB 1.170 4 2 36 32k 17ms 7040A 41.1 MB 1.170 2 1 36 32k 17ms AT BIOS Translation Parameters ---------------------------------+--------------------------------- Model Cyls Heads Spt MB | Model Cyls Heads Spt MB 7080A 1039 9 18 82.1 | 7040A 524 4 40 40.9 981 10 17 81.4 | 981 4 17 40.7 832 6 33 80.4 | 977 5 17 40.5 497 10 33 80.0 | 1024 9 17 76.5 | Technical Notes: ------------------------------------------------------------------------ * The WPC and Landing Zone BIOS entieres do not need a specific number for proper operation. Maxtor AT interface hard drives will ignore and override any numbers programmed. * Drive is low-level formated with 1:1 interleave at factory, with any defects retired to a dedicated non-destructive zone. * The drive's on-board controller will auto-translate every cylinder, head, and SPT combination listed in the parameters table. Therefore, configuration jumpers J13 and J14 are not required for most AT BIOS setup applications. * The 7080A is shipped with J17-J20 jumered and the 7040A is shipped with J18-J20 jumpered to operate as single AT IDE drives. J20 and J19 control master/slave operation. 7080A / 7040A Jumper Designation ------------------------------------------------------------------------ Jumper | 21111 1111 | J3 1 +12V DC J7 1 +5V Position | 09876 5431 | 2 +12V Ground 2 +12V | | 3 +5V Ground 3 Ground Pins +[4321]--[1 ]--[321]+ 4 +5V DC J3 Power Data Cable J7 Power J20 J19 Master/Slave Select (*) Single Drive closed, closed Master (Dual) closed, open Slave (Dual) open, closed J18 ECC Bytes (*) closed 4 Bytes / open 7 Bytes J17 Drive Model open 7040A / closed 7080A J16 Idle Mode Latch (*) open disabled / closed enabled J15 Reserved for Factory (*) open normal / closed factory J11 I/O Channel Ready (*) open disabled / closed enabled J14 J13 Default Configuration at Power Up Cyls Heads SpT MB J14 J13 (J17) 40MB (*) 981 5 17 40.7 open open open 524 4 40 40.9 open closed open 80MB (*) 981 10 17 81.4 open open closed 832 6 33 80.4 open closed closed 1024 9 17 76.5 closed open closed (60MB) 762 4 39 58.0 closed closed closed ------------------------------------------------------------------------ (*) = Default Note: A spare jumper is supplied across J13 and J14. >I have a 7131AT maxtor in my machine and setup info as follows: > > 1002 cylinders > 8 heads > 32 sectors > 0 precomp > 1002 LZ > ********************* MICROPOLIS Micropolis micropolis *********************** Drive 2105A 2112A ---------------------------------------- Unformatted MB 647 1220 Formatted MB 560 1050 Platters 5 8 Heads 8 15 Cylinders 1760 1760 ---------------------------------------- Performance (both): Track to track (read) 1.5 msec Track to track (write) 2.5 msec Average 10 msec Max 25 msec Avg Rotational Latency 5.56 msec Rotational speed 5400 rpm (+/- 5%) Data Transfer Rate upto 5Mbytes/sec Internal data rate 24-40 Mbits/sec BIOS Settings: 2105A 1084 cyl 16 heads 63 sectors 2112A* master 1024 cyl 16 heads 63 sectors slave 1010 cyl 16 heads 63 sectors * the 2112A emulates both master and slave Jumpers (labelled J6 on the drive) ---- |oo| W1\ only these 2 are used |oo| W2/ |oo| |oo| |oo| ---- W2 W1 -- -- in in 2112A only - drive emulates both master + slave in out Drive is master, slave is present out in Drive is slave out out Drive is master, no slave present (ie single drive) ***************** MICROSCIENCE Microscience microscience ***************** MicroScience Model: 7100-00 Heads: 7 Cylinders: 855 S/T: 35 (?) Size: 105M Model # 8040-00. Size 40M 5hd/17sec/977cyl Model # cyls # heads spt lz precomp cap (formatted) 7070-20 960 5 35 960 960 86 MB 7100-00 855 7 35 855 855 107 MB 7100-20 960 7 35 960 960 120 MB 8040 1024 2 40 1024 1024 41 MB (NOTE: I have no jumper information on the model 8040) On the 7xxx series the jumper pins are bent parallel to the board. When they are pointing toward you #1 is on the left, there are 8 altogether. single drive all open master drive 1-2 shorted slave drive 7-8 shorted *************** MINISCRIBE Miniscribe miniscribe ************************ Miniscribe MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 8225AT 3.5" 21 745 2 - - 8 28 MS 28 8051AT 3.5" 42 745 4 - - 8 28 MS 28 8450AT 3.5" 42 745 4 - - 8 40 MS 28 Master(2): 5-6 Slave(2): 1-2 Single: 1-3 (shunt storage) *************************** NEC Nec nec ********************************* NEC D3735, 40 MB BIOS: Cyl 537 Head 4 sect 41 NEC D3755, 105 MB BIOS: Cyl 625 Head 8 sect 41 NEC D3756, 105 MB BIOS: Cyl 1005 Head 12 sect 17 NEC D3741, 44 MB BIOS: Cyl 423 Head 8 sect 26 WPcom 0 LZone 424 Jumper JP12 JP13 (for all above NEC drives) Single 0 0 Master 1 0 Slave 1 1 There have been reported difficulties in using WD Caviar as Master and NEC drives as slave - the other way it works. ************************ QUANTUM Quantum quantum ************************* Logical Specs for Quantum AT Drives COMPLIMENTS OF COMPUTER BROKERS OF CANADA Model Cap Avg Acc Cylinders Heads Sectors/Track (MB) (ms) 40AT 42 19 965 5 17 80AT 84 19 965 10 17 120AT 120 15 814 9 32 170AT 168 15 968 10 34 210AT 209 15 873 13 36 425AT 426 14 1021 16 51 LPS 52AT 52 17 751 8 17 LPS 80AT 83 17 611 16 17 LPS 105AT 105 17 755 16 17 LPS 120AT 122 16 901 5 53 LPS 170AT 160 15 968 10 34 LPS 240AT 245 16 723 13 51 LPS 540A see below ================================================= Legend: 1=Jumper Installed 0=No Jumper ================================================= 40 & 80 AT Jumpers DS SS Meaning 1 0 Single drive configuration 1 1 Master of dual drive 0 0 Slave of dual drive 0 1 Self-Seek Test ======================================================= 120, 170, 210 & 425 AT Jumpers DS SP SS Meaning 0 0 0 Slave when the Master is Quantum PRODRIVE other than 40/80A 0 0 1 Slave in PRODRIVE 40/80A mode 0 1 0 Slave when Master is non Quantum Drive 0 1 1 Not Used 1 0 1 Master drive PDIAG mode checking DASP for slave 1 1 0 Master in PDIAG mode using SP to check if slave present 1 1 1 Master in 40/80A mode using SP to check if slave present 1 0 0 Single drive ======================================================= LPS 52, 80, 105, 120, 170 & 240 AT Jumpers DS SP DM* Meaning 0 0 0 Slave in standard PDIAG mode for compatibility with drives that use PDIAG-line to handle Master/Slave communications 0 0 1 Slave in PRODRIVE 40/80A mode compat. without using PDIAG line 0 1 0 Self Test 0 1 1 Self Test 1 0 0 Master in PDIAG mode using DASP to check for Slave 1 0 1 Master in 40/80A Mode using DASP to check for Slave 1 1 0 Master in PDIAG mode using SP to check for Slave without checking DASP 1 1 1 Master in 40/80A mode using SP to check for Slave without checking DASP ====================================================================== * While my Spec form marked the jumper name DM, it is labeled as CS on my LPS 240AT drive. Quantum LPS540A: 1120 cyl. 16 hds. 59 sec/trck 541MB 1024 cyl. 16 hds. 63 sec/trck 528MB The second option is for those that will use the drive under DOS (1024 limit without driver support). 9-12ms avg. access time ECC Reed Solomon, 4,500 rpm, local bus support, fast multiword DMA, 128k cache (of this 32k is used by firmware), read/write caching. The QUANTUM ELS series: Model Cap Avg Acc Cylinders Heads Sectors/Track (MB) (ms) ELS42AT 42 - 968 5 17 ELS85AT 85 - 977 10 17 ELS127AT 127 - 919 16 17 ELS170AT 170 - 1011 15 22 Write precomp = 0 for all Quantum drives ( probably no significance) Landing Zone = Cylinders Straps: If an ELS drive is master only, use DS master with slave, DS or, DS and SP in some cases slave, no strap ********************* RODIME Rodime rodime ****************************** Information for RO 3008A and RO 3009A series hard disk drives: Drive Types Model Cyls Hds Sectors/Trk No. blocks Formatted Cap. ------- ---- --- ----------- ---------- -------------- RO3058A 868 3 34 88,536 45.33 MByets RO3088A 868 5 34 147,560 75.55 MByets RO3095A 923 5 34 156,910 80.33 MByets RO3128A 868 7 34 206,584 105.77 MByets RO3135A 923 7 34 219,674 112.47 MByets RO3059A 217 15 28 91,158 46.67 MByets RO3089A 325 15 28 136,737 70.00 MByets RO3129A 492 15 28 206,645 105.80 MByets RO3139A 523 15 28 219,735 112.50 MByets RO3209A 759 15 28 319,053 163.35 MByets RO3259A 976 15 28 410,211 210.02 MByets Link Options In order to install the Rodime Ro 3000A series drives the dumpers for the single/dual drive and LED operation on the drive need to be set as described in the relevant product specification. I a single drive environment the drive is described as a Master. In a dual drive environment the drives are described as a Master and a Slave. This is due to the protocal the takes place between the two drives when performing diagnostics. There are four links, LK1, LK2, LK4 and LK5, adjacent to the 40 way interface connector. They have the following functions and are described in order as viewed from the end of the drive, with the first jumper described nearest the 40 way interface connector. LK2: LED When fitted, this jumper connects the LED drive to pin 39 of the interface. This allows a LED to be connected to the interface. An external current limiting resistor needs to be fitted in series with the LED when this option is selected. The value of the resistor will be dependant on the LED type chosen but will be in the range of 130 Ohms ot 220 Ohms. LK1: Dual Drives This jumper must be fitted when two drives are attached to a single bus. It fallows communication across the 40 way interface connector, indicating, to the Master drive, the presence of a Slave. LK4: Master When fitted this signifies that the drive jumpered is a Master. If there are two drives connected on a single bus then only one may be jumpered in this way. LK5: IOChRdy When fitted this connects the IOChRdy signal to the drive, it is fitted when the drive is used in host systems that have a higher data transfer rate than the drive i.e. greater than 4 MBytes per second when using 1:1 interleave. This jumper is not normally fitted as most hosts transfer at a lower rate than 4 MBytes per second. There are four possible Master/Slave configurations in which a drive(s) may be jumpered: Master, single drive with LED on interface LK2 & LK4 fitted. Master, single drive without LED on interface LK4 only fitted. Master, dual drive without LED on interface LK4 & LK1 fitted. Slave, dual drive without LED on interface No jumpers fitted. Master, dual drive with LED on interface LK4, LK1 & LK2 fitted. Slave, dual drive with LED on interface LK2 only fitted. The Master drive will delay power-up for approximately two seconds to reduce power surges in applications where dual drives are used. The other connections for a LED will be found close to the 28 way connector at the other end of the drive. This LED driver is not affected by the link options. An internal current limiting resistor is on the drive for this LED driver. Refer to the product specification for further details. *************************** SAMSUNG Samsung samsung ************************* CYL hd Sectors SHD-3101A 776 8 33 (100 MB) (MB = 1024 bytes) SHD-3061A 977 7 17 (56.76 MB) SHD-3062A 917 15 17 (114 MB) for drive SHD-3101A, SHD-3061A and SHD-3062A 2 drives Jumper 1 drive Master Slave C/D J J NJ DSP NJ J NJ ACT J (1) (1) HSP NJ NJ (2) J = Jumpered NJ = No Jumpered (1) In a two-drive system,it is possible to drive one LED with both drives. An external current limiting resister is required (2) If the drive is connected to a host that requires that the - DIRVE SLAVE PRESENT be supplied from the slave drive via the interface signal - HOST SLV/ACT, then this jumper must be installed, the ACT jumper must not be installed because the two jumpers are mutually exclusive *************************** SEAGATE Seagate seagate ************************* There is a list of most Seagate HD (including MFM, SCSI, ESDIand IDE) on every Simtel mirror under /msdos/dskutl/1seagate.zip It contains info about the following drives: st1144a st138a st274a st3283a st1057a st1156a st1400a st280a st351ax st1090a st1162a st1401a st3051a st9051a st1102a st1186a st1480a st3096a st9077a st1111a st1201a st157a st3120a st9096a st1126a st1239a st2274a st3144a st9144a st1133a st125a st2383a st325ax additional info: ST3243A 204 MB Cyl/Hd/spt 1024/12/34 ST351AX 41 MB 820/6/17 ST9235A 200 MB 985/13/32 and also... pd1:<msdos.info> (on SIMTEL mirrors) 1SGATHTX.ZIP Seagate tech support's disk ref (needs HHV20) This is a concise and complete source of information for all hard disks that Seagate makes, including MFM, RLL, IDE, and SCSI types. This information includes: Detailed technical specifications for each drive Switch and Jumper settings for each drive (more than just settings for BIOSs and low--level formatting routines) Miscellaneous notes about each drive This is the most up-to-date information that Seagate provides on its BBS. It is dated 05/14/93. This file is a hypertext version of file 1SEAGATE.ZIP and requires HHV20.ZIP to view it. ******************* TEAC Teac teac ******************** Model: SD-3105 Cyls. Heads Sect/T PreCmp LZone Capacity ------ ------ ------ ------ ------ --------- Physical 1282 4 40 - - 105021440 BIOS (AMI) 641 8 40 0 0 105021440 (100.2M) (Award) 926 13 17 0 0 104778752 (99.9M) (Phoenix) 776 8 33 0 0 104890368 (100.0M) Connectors and Jumpers: +----+ 1 Jumper Function |....| +---+ +-------/ /---+ 2 0 0 ON: -ACT selected (ext.LED) | | |...| |::::::/ /::::| :::: OFF: -SLV PRESENT selected +----+ +---+ +-----/ /-----+ 3 1 1 ON: Two HDD's J2 J7 40 J1 ---- OFF: Single HDD Power (Power) Signal Jumpers 2 ON: Master (/Single) OFF: Slave (with 2 units used) 3 ON: -I/O CH RDY not output OFF: -I/O CH RDY is output Master Slave Settings: Jumper no.: 1 2 ----------------------- Single....: 0 1 1, ON = jumpered Master....: 1 1 0, OFF = not jumpered Slave.....: 1 0 ********************* TOSHIBA Toshiba toshiba *************************** cap Cyl Hd spt MK1122FC 41 977 2 43 MK2024FC 82 977 4 43 MK2124FC 124 934 16 17 MK2224FC 203 684 16 38 MK234FCH 101 845 7 35 Toshiba MK 234FCF. 845 Cyl 7 Head 0 Pre 845 LZ 35 Sectors 101 Size The jumpers settings I got from Toshiba. They refer to connector PJ10, the 1st being the pair of pins closet to the outside of the drive and the 6th being the pair closest to center of the drive. configuration jumpers on ------------ ---------- single drive 1st and 3rd master w/ slave 1st, 3rd, and 4th slave 1st **************** WESTERN DIGITAL Western Digital western digital ************** Caviar series: Name Size (Mb) Cylinders Heads Sectors ---------------------------------------------------- WDAC140 40.7 980 5 17 WDAC280 81.3 980 10 17 WDAC1170 163 1010 6 55 WDAC2120 119.0 1024 14 17 WDAC2170 162.7 1010 6 55 WDAC2200 202.8 989 12 35 WDAC2250 244 1010 9 55 WDAC2340 325.4 1010 12 55 WDAC2420 405.6 989 15 56 > My 1st HD was a Quantum (LPS) 105AT (I assume th LPS, as I haven't any > docs.) > >LPS 105AT 105 17 755 16 17 > The second was a Western Digital Caviar 340Mb: > >WDAC2340 325.4 1010 12 55 > Using the information from your document, I set up the Quantum as master > and the WDC as slave. This worked fine most of the time, but when booting > sometimes HDD-controller errors occured. When I switched the drives (WDC > as master, Quantum as slave) it worked perfectly, as has done ever since. Manufacturer: Western Digital Serie: Caviar Name: WDAC2420 Size(Mb): 405.6 Cylinders: 989 Heads: 15 Sectors: 56 (uses dynamic translation) Jumpers: CP MA SL The drive runs as a slave with a WDAC2200 as master just fine. Please note that these are the *recommended* CMOS parameters. All the disks support so-called dynamic translation, and should thus be able to work with any parameters having fewer sectors than the total number of sectors on the disk. Now, according to the manual, the jumper settings are as follows: Jumper CP MA SL ------------------------------------------------- Single 0 0 0 Master 0 1 0 Slave 0 0 1 Slave with Conner CP342 or CP3022 1 0 1 Maybe there are 2 kinds of Caviar's floating around: If your jumpers read MA SL and SI then use: Jumper SI MA SL Single 1 0 0 Master 0 1 0 Slave 0 0 1 There have been reported difficulties in using WD Caviar as Master and NEC drives as slave - the other way it works. > When I installed a Conner CP3204F (203 MB) as master and a WD Caviar 2200 > (203 MB) as slave, both with and without the "CP" jumper, the Caviar had > seemingly normal behaviour. However, when doing writes to the Caviar, once > in a while it would overwrite directories etc. Using FASTBACK was almost > impossible. > > The workaround is to install the Caviar as the master, and the Conner > as the slave. > I had a WD pirana 4200 (212 mb) IDE drive and added a Caviar 2340 (341 mb) > drive. No matter what I did with the CMOS settings, as soon as I define > the D drive (as anything) and rebooted, it would hang for about 2 minutes > and then report "D: drive failure". I am using an intelligent IDE controller > since my AMI bios was too old to support IDE drives. > > The fix was to call the 4200 the slave and the 2340 the master. > All has been working fine since then. WD93044-A (40 MB) BIOS-Settings 977 cyln, 5 heads, 17 sect, LZone: 977 +-------+ +---+---+---+ 1: drive is master | cable | | 1 | 2 | 3 | 2: drive is slave +-------+ +---+---+---+ 3: second drive is a conner-drive No jumper set: this is the only drive. -- WD93048-A 40 MB Cyl 782 Heads 4 s/track 27 Jumper not known; try settings for WD93044-A -- WDAH260 60MB Cyl/Hd/spt 1024 7 17 WDAH280 82MB 980 10 17 WDAP4200 202MB 987 12 35 ******************** Useful telephone numbers... ******************** Conner: BBS: 408-456-4415 Talk info: 1-800-426-6637 FaxBack: 408-456-4903 The "Talk info" number above is now a Fax-on-demand system. Very nice, considering both the incoming call and outgoing fax are paid for by them! You can also speak with a human for technical assistance at this number. (Conner Europe (in UK) ; +44 628 777277 (voice) +44 628 592801 (fax)) Miniscribe: 303-651-6000 Maxtor: Info/tech support: 800-262-9867 FAX-back: 303-678-2618 BBS: 303-678-2222 They list their 800 number as 1(800)2-MAXTOR. Quantum: 408-894-4000 408-944-0410 (Support) 408-894-3218 (FAX) 408-894-3214 (BBS) Seagate: Info/tech support: 408-438-8222 FAX-back: 408-438-2620 BBS: 408-438-8771 Western Digital: Info/tech support: 714-932-4900 BBS: U.S. 1200/2400 714-753-1234 U.S. 9600 714-753-1068 France 1200/2400 ..-331-69-85-3914 (? French code is 33 not 331) Germany 1200/2400 ..-49-89-922006-60 U.K. 1200/2400 ..-44-372-360387 The US Toll free number for Western Digital tech support is 800-832-4778 ******************* last but not least ***************** If I could help you with my little collection and if you live in a part of the world far away from me, how about a postcard for my pinboard? I will surely answer! Carsten Grammes Saarbruecker Str. 47 D-66292 Riegelsberg Germany S) 5.0 >Video This section is posted separately as the "comp.sys.ibm.pc.hardware.video FAQ" and "comp.sys.ibm.pc.hardware.video Chipsets List" and archived along side this FAQ. Refer to section one for instructions on retrieving these files. Newsgroups: comp.sys.ibm.pc.hardware.video Subject: comp.sys.ibm.pc.hardware.video FAQ, Part * / * From: scott@bme.ri.ccf.org (Michael Scott) Summary: This is a monthly posting containing a list of Frequently Asked Questions (and their answers) pertaining to video hardware for IBM PC clones. It should be read by anyone who wishes to post to the comp.sys.ibm.pc.hardware.video newsgroup. Archive-name: pc-hardware-faq/video/part* URL: http://www.heartlab.rri.uwo.ca/videofaq.html --- Newsgroups: comp.sys.ibm.pc.hardware.video Subject: comp.sys.ibm.pc.hardware.video Chipsets List From: scott@bme.ri.ccf.org (Michael Scott) Summary: This document is distributed with the comp.sys.ibm.pc.hardware.video FAQ and contains information on video chipsets and specific video card models. Archive-name: pc-hardware-faq/video/chipsets URL: http://www.heartlab.rri.uwo.ca/videofaq.html S) 6.0 Systems Q) 6.1 *What should I upgrade first? Q) 6.2 Do I need a CPU fan / heat sink [From: jruchak@mtmis1.mis.semi.harris.com (John Anthony Ruchak)] This is highly debatable. In general, if you buy from a good, self-respecting company, any additional cooling requirements would have been taken care of before your system was delivered to you. I'm responsible for PC maintenance at my site, and I don't worry about additional cooling in any of the pre-packaged systems we receive. All rebuilt and/or upgraded 486-33 (or higher) systems do, however, receive additional cooling because older cases may not provide adequate ventilation for today's technology. Additional cooling on the infamously-hot Pentium (586) is always added. So, do YOU need a CPU fan in YOUR system? Probably not for "ready to run out of the box systems." If you are _REALLY_ worried that your system is suffering from too much heat, consult with a reputable service center. They will not only answer your questions, but they can also install any additional cooling systems that may be needed. A good rule of thumb, though - "don't try to fix what isn't broken." In other words, if your system is working, don't look for trouble. Q) 6.3 What does the turbo switch do? [From: cls@truffula.sj.ca.us (Cameron L. Spitzer)] It slows your system down so you can play games that were written with timing mechanisms based on CPU execution rate. I know of three implementations: 1. A programmable divider delivers the clock signal at two different speeds. 2. Extra wait states are inserted in all memory cycles. 3. Dummy DMA cycles or extra referesh cycles are inserted. The first is by far the most common. Q) 6.4 How does the front panel LED display measure the system's speed? It doesn't. The only useful information going to these displays is if you are in turbo mode. They have jumpers or dials behind the display which you can use to set them to show any two arbitrary numbers (for turbo and non-turbo modes). Q) 6.5 Should I turn my computer/monitor off? Turning a device on/off causes thermal stress. Leaving it on causes wear and tear (even on non moving parts). The only thing you shouldn't do is quickly power cycle the computer. If you turn it on/off, leave it that way for at least a few seconds. Other than that, it's up to you. Q) 6.6 Are there any manufacturers/distributers who read the net? Yes, it is known that Zeos, Gateway 2000, Dell, Adaptec, HP and others all read the net to some extent. However, for best results, use the support phone numbers. =============== Ralph Valentino (ralf@worcester.com) (ralf@alum.wpi.edu) Senior Design Engineer, Instrinsix Corp.