What are some settings to look for in the BIOS that could cause my system to not post sometimes (powerr off/on usually fixes it) and memtest to fail. It's an X2 3800+, m2n-sli deluxe motherboard, cosrair xms2 ddr2-800 1gb. I have the ht link set to 4x, multi to 10x, the speed to 230 mhz, which equals 2.3 ghz. I have the CPU voltage at 1.4, 5 - 5 - 5 - 12 - 2T memory timings, 1.9V on the RAM, DDR800 mode. Any ideas? I would think I should at least be able to do a 300mhz OC :\ There are no heat issues.