[TriLUG] hardware question - IDE problem

Andrew Perrin clists at perrin.socsci.unc.edu
Wed Oct 30 10:02:17 EST 2002


Forgive me if this is obvious, but what are the master/slave settings on
the disk and the CDROM?

ap

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Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists at perrin.socsci.unc.edu * andrew_perrin (at) unc.edu


On Wed, 30 Oct 2002, Greg Brown wrote:

> I've been fighting with my new-to-me Dell Optiplex PII for a day now.  The
> problem is that my BIOS does not see the the CDROM if, and only if, the hard
> drive is installed.
> 
> I have two IDE busses on this machine (which I believe are named IDE0 and
> IDE1).  If I put the disk on IDE0 without the CDROM present the machine
> attempts to boot off the disk.  If I put the CDROM on the end or the middle
> of the same IDE cable as the disk the machine will not see the CDROM.  The
> same is true if the CDROM is placed on IDE0.
> 
> If I remove the disk and put the CDROM on the chain all by itself I can boot
> from the CDROM.  If I put the hard disk on the same IDE (or other IDE) the
> CDROM is not seen by the machine.
> 
> I've swapped drives (three times) and CDROMs (twice) and used a vast
> combination of the hardware at the house in order to correct this problem
> but the problem persists.
> 
> Any ideas?  Am I missing something?  I didn't think you could set irqs on
> CDROMs or hard disks but I checked for a conflict anyway and didn't see any
> jumpers where the irq could be modified.
> 
> Greg
> 
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