I got a mobo w/cpu and a stick mem. not sure what model # but i put my harddrive in and i can enter bios. it will not boot, xp is on the hd,but it came out of a compaq.what to do? do i need a boot disk,or another mobo.the hd came out fo my bros com first, i plugged it to my compaq and it worked, other than the hd what could be wrong?

Just to clarify: you start the computer and it goes thru the BIOS POST but you cannot boot XP?

Is this correct?

If so it is not surprising. You need to reinstall XP under such circumstances.

Hi and welcome to D-A-L

The hard drive with having XP on and from another machine will be set for that mobo and drivers, do you have a new version of XP, I should imagine the version for the compaq PC is for that machne only.

the hd came from my bro's com first and i did nothing to it when i put it in my com 6 months ago,but i will reinstall xp to see

do i need a disk with the drivers for the mobo, or will windows auto detect or what?i'm still learning how to build computers, this will make my 3rd com.

XP will cover most drivers. You may need to find Audio drivers and Video if your video is on-board.

But you do this after you install XP. The only drivers that need installing during the XP install would be RAID drivers which don't apply here..