Check the jumpers on the Hard drive in the machine that does not work.
SOME hard drives (and BIOS combinations) are VERY nasty if their
jumpers are set wrong.

You can get the jumper information from a label on the drive, the manufacturers
WEB site, or from most install disks that come with the better hard drive retail kits...

If you can't find info about the proper jumper settings, post back to the list the
drive manufacturer, model number, etc...

                                     Rick Glazier

From: "David R Enberg"
> I was switching out a CD-RW drive from one machine to another last
> night.  The machine I installed it on is a Windows 2000 Server, P3, 900
> Mhz, 256 mb ram.   I ONLY disconnected the CD ROM cables and power cable
> to it.
>
> When I put it back together, and powered on, the computer turned on for
> about 2 seconds and then turned off.  I checked all the cables, took out
> the memory chips, tried it again, and same thing.
>
> Do I start with the power supply as the culprit or go right to the
> motherboard and consider replacing it?

               The NOSPIN Group Promotions is now offering
              Mandrake Linux or Red Hat Linux CD sets along
             with the OpenOffice CD...  at a great price!!!
             http://freepctech.com/goodies/promotions.shtml