For a while now I've had an Abit AV8 coupled with an AMD Athlon64 3700+ (San Diego Core). After a few days attempting to get it stable (for some reason it was the memory command rate, 1T resulted in random BSODS, whereas 2T allowed for non-stop fun). And this is how I’ve been running it for a good two months. Recently I read that the 3700+ San Diego was a good overclocker, so I have been experimenting with this, and I noticed that the default voltages were not quite normal. The AGP is 1.55v, DDR is 2.65v and the North Bridge is 1.55v. Aren't these 0.5v above normal? These are the default settings for the board when it is clocked at 200MHz FSB. I've upped this to 220MHz which puts the CPU at 2420MHz, and it seems fine. I was wondering if these voltages are required, as I assume the RAM would be pushed up too (Corsair TWINX 2x512MB Cas 2.5, 3, 3, 6). Is the computer safe? Or will it suffer a runaway thermo-nuclear reaction and wipe out the village? Thanks for any help!
it is safe mate these are not high voltages. the RMA may need about 2.8V to be stable if pushed a bit(its tcc5/tccd).its the vcore(you havent listed) that you may need to raise as you overclock the sandy further. running at 2T is not ideal, check there are no BIOS updates which may improve compatibility of RAM with your motherboard.
The VCore is at 1.4v, and I have recently noticed that Half Life 2 seems to throw up errors while the FSB is overclocked to anything above 200MHz(Doom 3, Battlefield 2, everything else, runs fine). The command rate is quite an odd thing, since I have tried running at 1T (with the latest BIOS version) but it becomes very wobbly, even with slower timings (which would be overall slower than having faster timings with 2T I assume?).