I just installed my new EVGA 7800GS today, and I have run into extreme instability problems. Running 3Dmark05 it crashes, sometimes restarts, other times just back to windows. I am running 81.98 drivers and no OC. I think it is a PSU problem. I have 26A on the +12V, which isn't bad. My PSU is a Rosewill RP500(500 Watt), not a dual +12V. I use a secondary 300 Watt PSU to run all my fans and LED's. I tried putting my HDD's and DVD drives on the 2nd PSU as well, but it still does the same thing. I really would appreciate some help, I am going to try taking my CPU back to stock speeds to see if that fixes anything, I hope I don't have to buy a new PSU.
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3/16/06 at 6:14pm