Hi, I'm just playing around with Crystal CPUID and thought I'd see what happens when I underclock my AM2 A64 3800+ single core down to 1.8Ghz from 2.4Ghz, and it seems not that much difference performance wise in the games I play - it's also a couple of degrees cooler (around 36-37C instead of 38-39C).
I'm mainly interested in what you guys think would be a safe undervolt I could do with zero testing
while it's running at 1.8Ghz. I assume as my processor was intended for 2.4Ghz at 1.35v that it could do 1.8Ghz on a much lower voltage without much fuss. As I say, I don't want to have to mess about stress testing in Prime95 or anything, just something that's a little lower and I won't have to worry about crashing - would 1.25v be safe at that speed (and no testing)? Or would 1.3v be a safer bet. I don't want it to be near the limit! Also, is there any way to estimate roughly how many watts I'll be saving?
[EDIT] Also, are these settings saved by BIOS, or will it just revert to normal values on restart? (Crystal isn't enabled at startup).
Thanks for any info