Problem 80 wire cable for hard disk
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From: ClueLess on 1 Mar 2010 20:14 On Mon, 01 Mar 2010 19:51:31 +0530, ClueLess <clueless(a)wilderness.org.invalid> wrote: >Posted to comp.sys.ibm.pc.hardware.storage, 24hoursupport.helpdesk > >Hi Friends > >Here is a strange problem, when I connect my hard disk using the 80 >wire cable my computer does not recognize it. > Here are some clarifications: Mercury 845GL mobo Only one drive checked at a time. The drives checked are all Seagate 80 gb The original hard disk was working for years with the 80 conductor cable, correctly mounted - blue end on mobo, hard drive at the end, set as master. Only after I checked with another similar hard disk that the problem started. I have tried several 80 conductor cables and none work. All the drives are recognized without exception when using the 40 conductor cable. I have been using computers since CP/M days and assemble my own when required but this has got me stumped. I am very happy at the enthusiastic response from so many of you but the explanation still eludes :-( -- ClueLess
From: Rocky on 1 Mar 2010 20:20 Get a clue. Real men don't use PATA cables anymore! Time for a new computer. "ClueLess" <clueless(a)wilderness.org.invalid> wrote in message news:j0ino5p7hrvcjpd357c0o7338tqtp5ta5n(a)4ax.com... > Posted to comp.sys.ibm.pc.hardware.storage, 24hoursupport.helpdesk > > Hi Friends > > Here is a strange problem, when I connect my hard disk using the 80 > wire cable my computer does not recognize it. > > It happened this way. I had to check another hard disk and so I > swapped the disks (IDE0) and found it was not recognized. Then I > connected the original hard disk and it was also not recognized. I > tried both the IDE0 and IDE1 channels with the same result. I tried > also other hard disks as well other 80 wire cables, still no go. > > Then I found an old 40 wire cable and when connected with this, bingo, > all the hard disks are recognized. > > No pins broken, no hardware damage. All the cablea are in good > condition. In fact the machine for years worked with only the 80 wire > cable. > > How does this happen? This is just a banana motherboard and the > problem is in the bios stage itself. (bios says "Not installed") > > If any of you can give me an explanation or a solution please do > > -- > Thank you for your time and response > > ClueLess
From: Rod Speed on 1 Mar 2010 20:51 Desk Rabbit wrote > Rod Speed wrote >> Desk Rabbit wrote >>> Rod Speed wrote >>>> Desk Rabbit wrote >>>>> ClueLess wrote >>>>>> Here is a strange problem, when I connect my hard disk using the 80 wire cable my computer does not recognize it. >>>>>> It happened this way. I had to check another hard disk and so I swapped the disks (IDE0) and found it was not >>>>>> recognized. Then I connected the original hard disk and it was also not recognized. >>>>>> I tried both the IDE0 and IDE1 channels with the same result. I tried also other hard disks as well other 80 wire >>>>>> cables, still no go. >>>>>> Then I found an old 40 wire cable and when connected with this, bingo, all the hard disks are recognized. >>>>>> No pins broken, no hardware damage. All the cablea are in good >>>>>> condition. In fact the machine for years worked with only the 80 >>>>>> wire cable. >>>>>> How does this happen? This is just a banana motherboard and the problem is in the bios stage itself. (bios says >>>>>> "Not installed") >>>>>> If any of you can give me an explanation or a solution please do >>>>> And the hard drive make/model is? >>>>> And the motherboard make/model is? >>>>> And the BIOS version is? >>>> All irrelevant given that the original hard drive isnt recognised anymore. >>> Any information is useful at this point. >> Wrong again. > Without facts and information ant diagnostic is just pure guesswork. And I told the OP how to diagnose the problem. No guesswork whatever involved. >>> It may be a known problem >> Bet it isnt. > Could be, maybe not. 50-50 chance of guessing correctly. Wrong again. There is a much lower proobability than that that your guess is correct. > 100% success with correct information. Not with the information you requested there wont be. >>> but without knowing what he's got the chances of finding out are less than zero. >> Wrong again. The obvious thing to try is a another 80 wire cable and check that the drive connectors are being >> plugged in the right way around if they arent polarised. > I strongly suggest you go back and read the OP's message fully I know what the OP said. > before you dig yourself a deeper hole than you are already in. You're the one desperately attempting to bullshit its way out if its predicament. > I'll draw your attention to the particular sentence which says: > "I tried also other hard disks as well other 80 wire cables, still no go." Doesnt eliminate the possibility that the OP isnt putting the drive connector on the wrong way around with a non polarised connector on the cable.
From: Rod Speed on 1 Mar 2010 21:03 ClueLess <clueless(a)wilderness.org.invalid> wrote > ClueLess <clueless(a)wilderness.org.invalid> wrote >> Here is a strange problem, when I connect my hard disk >> using the 80 wire cable my computer does not recognize it. > Here are some clarifications: > Mercury 845GL mobo > Only one drive checked at a time. > The drives checked are all Seagate 80 gb > The original hard disk was working for years with the 80 conductor > cable, correctly mounted - blue end on mobo, hard drive at the end, > set as master. You didnt say if the drive connectors or the motherboard end are polarised. > Only after I checked with another similar hard disk that the problem started. > I have tried several 80 conductor cables and none work. > All the drives are recognized without exception when using the 40 conductor cable. And that should happen with an 80 wire cable too. > I have been using computers since CP/M days and assemble > my own when required but this has got me stumped. > I am very happy at the enthusiastic response from so many of you but the explanation still eludes :-( Most likely you arent putting the connector in the right way around with the 80 wire cables, or its some weird effect with that particular motherboard. The motherboard does decide if the 80 wire cable is a cable select cable from what it can see of the cable, its possible that that detection has now failed but thats not very likely at all. Are the drives jumpered for cable select ? I guess its possible that they arent and someone had to kludge around a failure of the bios to detect the drive initially and that kludge got bypassed with the attempt to test a different drive or something.
From: "nobody >" on 1 Mar 2010 23:45 richard wrote: > I'm amazed that you could even get the 40 wire cable to connect to the same > connector as the 80 wire. They're generally designed so that you CAN'T do > that. Huh? Same 40-pin connector. > Was the first drive you checked properly initialized and formatted per > maniufacturer's instructions with the provided disk? That's generally why > it isn't recognized. Did the other drives work elswhere? Another Huh? moment.. the OP stated it didn't show in BIOS. > In the device manager, do you get any errors? If it ain't in the BIOS, it ain't gonna be in Device Mangler. Another one for the RtS playbook of screwups...
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