Thx for the response. Anyway I installed the hardware, it booted up fine. Went to install windows XP and started to format the new hard drive. When it completed formatting, the computer died. It now only turns on for about a second before losing all power. What to do?
I think you need to provide your new computer spec's, but it sounds like there's a short somewhere or not enough juice.
Try unplugging all of your devices except your video, cpu, and 1 stick of ram and see if you can boot into your bios. you may want to double check your motherboard stand-offs and make sure there's not an extra one touching your board. Also double check your power connectors, one of them may have become loose if it wasn't seated properly.
If you get into your bios, turn off yor pc and plug in your hard drive and boot up again. If your pc turns off again, there's your problem, but double check your power connectors first.
I would still like to know your specs.
I turned the computer off for 10 mins, turned it back on and I got an error saying that windows couldn't be installed. When I went to restart, I couldn't get it to turn back on again. I'll try what you suggested and get back.