A7N8X-X reboots at 200mhz

[Krum]

I keep getting random reboots for no reason I can see. The screen just goes black and the system restarts automatically, no error msgs or anything at restart. I've got the A7N8X-X with a athlon T-bred 2400+ chip. It seems to happen more often when I raise the FSB to 166 or 200 Mhz from 133. I reduce or raise the cpu multiplier to run the cpu at around 2 gig just to try and get the system stable. I also adjust memory settings to at or lower than the bus speed. I can't seem to get the cpu to run over 2 gig without crashing, but at this point I just want to get stable and go from there. I've tried bumping up cpu voltage as high as 1.725 with no improvement, and memory votage to 2.7 also with no effect. This is my first computer build, so I'm hoping I'm missing something simple. I thought I saw another thread about this same prob, but I can't find it in "search". Right now it hasn't rebooted in almost an hour, but I've got the BIOS set to fsb 133, mem 133. Seems like a waste for pc 3200 CL 2.5 memory and an FSB 400 capable board to run so slow. Please help! thanks!

[Telexen]

Just because you're running 400mhz RAM doesn't mean you'll get 400mhz FSB out of the system...ESPECIALLY when it's only a 133mhz FSB CPU. Get the most you can out of it by tweaking RAM timings, voltages, and multipliers...that'st he best you can do.