"Joe Black" <> wrote in message
news

wrkb.183403$...
> >
> > Firstly check the IDE cable(s). I would think that both the HDD and
CD-ROM
> > are on the same IDE ribbon/controller and that either the cable has come
> > lose or the IDE controller has packed up.
> >
> > I hope it's a loose cable. Although not picking up either CD drive is a
> > worry. That's three drives giving trouble, suggesting more than one IDE
> > controller/ribbon cable. Unless the writer is on it's own cable and it's
> too
> > new for the BIOS to boot from. Just guessing here, more information is
> > needed really.
> >
> > What age is the PC and did you move it or do anything to it immediately
> > before this problem?
> >
> > If it's an old system (AT) I'm not sure but I don't think the
motherboard
> > depends on the 12v rail from the PSU, maybe the PSU is shot and that's
why
> > it can't detect the drives (which do require 12v). Maybe the 12v rail
has
> > packed up or is very weak. I'm not sure on that, I'm sure someone will
> > correct me if I'm wrong.
> > --
> > ~misfit~
>
> Hi Misfit
>
> My son was playing a game on it and the game "froze" and when he rebooted
it
> came up with "Operating system not found", I don't think the computer was
> moved.
>
> Not sure of exact age of computer but it is a few years old - a Gateway
> Pentium 600 coppermine. The original hard drive packed in and they
replaced
> it under warranty so the hd is about 2 years old.
>
> I took cover off and checked tightness of cable and connectors - nothing
> loose. All drives appear to be on the same cable.
>
> Thanks for your reply - Joe.
Hi Joe.
Hmmm, it's hard to trouble-shoot a PC problem remotely. If you have one HDD
and two CD drives they can't all be on the same cable if it's running IDE
drives, which I'd think it would be. IDE is limited to two drives per
channel and most motherboards have two channels. If in fact they are all on
one cable then it's using SCSI instead of IDE, which is a whole different
kettle of fish. I wouldn't think it was SCSI but I can't be sure until you
have another look under the hood and check to see if it is in fact two
cables, one with one drive on it and the other with two drives on it.
They'll plug into the motherboard right next to each other. Also SCSI uses
50-pin cables whereas IDE uses 40-pin. Can you have another look please?
Either way it doesn't look good. I would say, as a preliminary diagnosis,
that the drive controller is shot. It might not be that but that's the way
it looks at the moment. There's a slim chance it could be the power supply
instead. I don't know if Gateway use standard wiring on their power supplies
(Dell don't but I think Gateway might) or if you have access to another
power supply to try. If you did that would be my first thing to try, it's
quite easy to do.
Check those cables again please, and do they go to the main board or an
add-in board? Also, where are you?
Cheers,
--
~misfit~
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