Hi, I just wiped my old hardrive added a new power supply and gfx card and tried to install vista. At first it kept locking up during installation, until i deleted the old HDD partition and made a new one. It finished installation but it randomly locks up every 2-10 minutes sometimes it locks up before even getting to my desktop. The only thing I know to do right now is run memtest 86 so i am running it all day while at work. I have gotten one BSOD that may or may not be related, since it proceeded to reboot before i had a chance to read it. I have not had the time to check the dump yet. If anyone has any ideas about things i could try please let me know. Thanks