I kind of posted this another thread, and tried to contact Corsair but they don't have a phone number listed that I could find on their web page. I was running my recently purchased Corsair Dominator DDR2 PC8500 memory at the recommended EPP of 5-5-5-15 2T timings at 2.1V (my BIOS and HW Monitor would actually show it about 0.04 or 0.05V under 2.1V so I assume that is a maximum BIOS setting). When I ran Memtest86+ I got 13 errors in Tests 5, 6, and 7 (I cancelled Test 8 out of frustration). After trying the "Auto SPD setting in the BIOS" I ended up with over 36 errors just through Test 5. I went back to the 5-5-5-15 2T timings and hesitantly bumped the voltage to 2.2V (BIOS and HW Monitor read 2.16V) in the BIOS and got Memtest86+ to run all 8 tests with 0 errors. Is this normal? My concern is the rating of 2.1V and what negative impact 2.2V will have. I do have the Dominator fan apparatus installed but would like opinions. Do I have bad memory? My memory speed is 1066MHz. I have (G)MCH set at 400 MHz and the memory clock at 2.66. My power supply is a Corsair TX750W. I might add that I just had to rebuild my entire system after an Antec Power supply failed and took all my other components (P4 670/Asus P5AD2E Premium setup) with it. I just want to get a good stable system and know everything is working properly. Please chime in with constructive feedback. Thanks in advance.