I recently ordered a few new parts to fix up an older computer of my mom's.

So I get everything put together in this Micro ATX case(nerve racking) and when I go to power it up, the processor fan starts up, along with the other fans, but the hard drive does not. Here's the wacky part: whenever I take the IDE cable out of the back of the hard drive, it powers up! I've switched cables, no LUCK. I switched PSU's, still nothing. I even swapped the hard drive in my computer with this one to see if it was that, but it works perfectly. The only possible thing I can imagine being WRONG with it now is the new motherboard. Is this thing DOA or what?

Has anyone had this type of experience before, because a friend of mine who is fond of computer BUILDING and I both are stumped. I plan to send the motherboard back tomorrow for an exchange if I can find no solutions.

The mobo is a Biostar Mainboard Socket 478, Micro ATX FSB800 for P4 series.


ANY help at all would be GREATLY appreciated. THANKS.