Comp extremely slow at boot up/wont recognize HD
I have 2 computers. I shipped one out to get fixed by a friend and when i found out he was going to be gone a few months since he's in the ROTC I built a new computer with better parts. I just got my old computer back. I wanted to use some of the old computer's parts so i took what I wanted from my new computer (Radeon 9800, 120 GB, 160GB, and a stick of 512DDR 333mhz) Both computers booted up perfectly fine. So i swapped parts. Put my 80GB and my nVidia Ti4600 in my new computer. I tried booting it up, and it is really really slow. I cant even get to the Windows loading screen, the screen just goes black. I have tried reformatting but it says it can't detect my 80GB HD. I've checked all IDE cable connections and power. I have no idea why my computer wont boot up properly. Here are the specs of the computer that boots up slowly: AMD XP 3000, 512 DDR 333mhz, nVidia Ti 4600, Mobo: Asus Nforce v2.0, 80GB WD. There is no reason this should boot up slowly when both computers worked fine before i swapped parts. Any suggestions?