Originally Posted by Kryton
1.25v should be a good starting point for it.
My 4100 runs smoothly with just 1.230v's used at stock so yours should be similar but I'd actually suggest 1.25v's to start with. Check temps and if all is OK and stable, go with it.
These chips will begin running warmer with as little as 1.30v's used on air so don't go too much past that unless you're OC'ing and your cooling is at least adequate.
Nonstock cooler, watercooling, ect, are the preferred way to go since the stock coolers for these chips aren't that great to start with but any good AM3 based cooler works fine. The retaining collar around the CPU socket is the same as an regular AM3, AM2, Socket 939 or even a Socket 754 for that matter, related to the cooler retention tabs
on the collar, not the screws that mounts the collar itself to the board (754 and 939's are two screw mounted while the AM2's and up to present are all 4 screw mounted collars).
Currently using a stock Opty 939 copper heatpiped cooler with my 960T and was using it with my 4100, works great with both chips unless I really start pushing the speeds up.
Sorry for bringing up an old thread, but this one seems most relevant to my case.
I also have an FX-4170 at stock speed, paired with a Gigabyte 970A-UD3. I wanted to experiment with under-volting, bringing the stock voltage down from 1.4125V to something more reasonable. Now I know all CPU's are different, however, I can't get my FX-4170 to pass stability tests with anything under 1.3V. The last I tried was with Prime95 at 1.3125V, crashed after 15 minutes. I currently have it at 1.328V, going good so far...
But isn't 1.328V a great deal out of the 1.25V starting point mentioned in the quoted post? Is this normal? Or am I doing something wrong that is preventing my CPU to run at the recommended low voltage.
Help would be much appreciated. Thanks.
EDIT: Cooler is a Xigmatek Gaia SD1283, with 2 Yate Loon D12SH-12 in push-pull. TIM is Arctic Silver 5. Max CPU temp is 25C, as read by HWMonitor.Edited by Forde3654Eire - 6/13/13 at 5:30am