Pimary disk 0 not found

I think the problem is not likely the wrong version of XP as suggested above -- because while this would probably cause issues while BOOTING, it has nothing to do with the BIOS recognizing whether or not there is a hard drive.

I think you're on the right track -- it seems very likely there is not enough power, particularly during the spinup phase.    Will it try to boot if you go to setup first and wait a few seconds?  (so the hard drive is fully spun up)   ... or what if you unplug the optical drives and remove any unneeded PCI cards??  (to reduce the power demands)

In any event, if you have one available, I'd try another power supply  (but be sure the pinout is correct - remember this is a Dell system, and MAY use a Dell-specific PSU).

WinXP Version is not the issue here I beleive. The HDD must be detected if everything is fine with Mobo. The one Green and 1 Yellowindicator is not normal. I have Dell Precision and both leds are always green. I wud suggest to fire the query with Dell about the Led colors as The yellow color is not normal for sure.

Regarding the Power from  SMPS, did u notice your HDD spin and make the initial "tick tick" sound on powering on the machine..!!! if yes then power may not be the issue, you may try to boot the machine using a Bootable CD/DVD disk to verify the power requirement.

But I am sure if ur HDD/CD/DVD is not detected then its the Mobo to be replaced and if u r sure about ur Power SUpply as well.. then better look for a new one. Not a cheap solution tho.

HTH.

Try entering the BIOS and hitting Hard Disk Auto Detect to see if the hard disk is detected, sometimes the older hard disk model might be stored and is not getting reset.

Dan

Does not sound as though it is actualy spinning the hard drive, as I mentiond the oly thing I hav in the PC is the video card and the hard drive. I am going to have to find another Dell and swap the power supply. However I did want to mention I believe the Dell had XP pro on it and the drive I am trying to get to boot has XP home on it. I do have a black drive here that I will try to boot to cd and see if I can format it. Thank I will let you know how I make out.

Swapping the power supply did not make a difference. Booting to a CD with an unformated hard drive did work. I guess it is an OS issue. However after install XP I stll get "Hit F1 to continue or F2 to enter system setup".

Was your whole computer set up then or just your motherboard, video card, hardrive, and a cdrom. You are probably getting that message because something is not plugged up right. Let us know so we can get your system 100% functioning.