I just built a computer recemtly..AMD X2 3800+, Gigabyte mobo AM2 with onboard video, 1 gig of OCZ DDR2 800, WD 160GB, Cooler Master case with 380W PSU, I don't have a vid card yet. My computer keeps rebooting when i play movies on VLC and sometimes for no reason, I brought my comp in a week after I built it cuz a capacitor was blown on the mobo and the ram failed memtest+ 1.65 and the burn in..so i got new ram and a mobo...i ran 3 passes on the newest memtest+ 1.65 and there were no errors so I'm wondering if anyone knows what the problem could be.
More aboutddr2 memory working
1) have you set memory timings and voltage manually? if not do so according your ram's spec sheet
2) bad psu? is it a new one or used(already tested on other pc)
Yes, are you sure your PS is enough to handle your computer? What brand/model is it?
Maybe its the ram. Ive seen a lot of people having problems with OCZ ram.