hello hello i was wondering if i could get a little help with this i've been having some very weird crashes this weekend. it has happenned two times so far, and after a lot of googling, i've found too many possible answers. First ill give you my setup: Intel core2quad q9300 ocz flex2 2x2gb 1055mhz ddr2 2x caviar black 750 gb motherboard asus maximus formula the soundcard is an audigy2 it has a red scorpion heatsink s1283 a thermaltake purepower pro 600W PSU and a brand new ati radeon 5850 black edition. The computer freezes, emits a loud, electric-like sound, and resetting is the only thing that fixes. It has happenned only twice, and the second time, also threw in some video artifacts. However, the first time freaked me out a lot more, since the computer wouldnt start up for about five minutes. (Fans would start up, but no hdd activity, and no bios beep) I've found several possible answers: bios too old, trojan infections, registry issues, an underpowered system, etc. i've run several psu calculators, and even if i linger at the limits, they still tell me my psu is enough. the computer is a year and a half old, and a 9800 gtx+ i had bought for it just recently died on me. I sent the entire motherboard to be checked, afraid it might be overvolting, but it came back with the technicians saying it was working perfectly. I even had some temp issues that were fixed after the computer came back. I'm afraid that these could be symptoms of the same thing that killed my other videocard. i havent started up my computer again since the second incident (just after i checked it booted ok) However, this particular kind of crash has not happenned to me before. and i really don't know where to start. any help or tests i might run to narrow the possibilities down? thanks in advance!