For me it helped a GREAT deal on my GA-P35 DS3L
Here's some data from my q9550 and GA-P35 DS3L 8.5x 400 3.4ghz , ram 2x 800ddr , FSB overvolt +.2 Ram +.1v
Stock: 1958 ohms bios voltage: 1.31875v
idle: 1.28v
load: 1.232v
Mod1: 990 ohms bios voltage: 1.31875v
idle: 1.28v
load: 1.26v
Mod2: 708ohms bios voltage: 1.28125v
idle: 1.264v
load: 1.248v
I had to lower voltage from 1.31, because it actually reported 1.31 ish in bios. Crunching prime 95 small fft's all night it is stable at 1.28125v. I had to get at 1.31875v before and stability was still questionable ! So whether penciling is hurting the board who knows. But i could not get anywhere near stable at these lower voltages.
Here is link to mod http://www.ocforums.com/showthread.php?t=558347
Here's some data from my q9550 and GA-P35 DS3L 8.5x 400 3.4ghz , ram 2x 800ddr , FSB overvolt +.2 Ram +.1v
Stock: 1958 ohms bios voltage: 1.31875v
idle: 1.28v
load: 1.232v
Mod1: 990 ohms bios voltage: 1.31875v
idle: 1.28v
load: 1.26v
Mod2: 708ohms bios voltage: 1.28125v
idle: 1.264v
load: 1.248v
I had to lower voltage from 1.31, because it actually reported 1.31 ish in bios. Crunching prime 95 small fft's all night it is stable at 1.28125v. I had to get at 1.31875v before and stability was still questionable ! So whether penciling is hurting the board who knows. But i could not get anywhere near stable at these lower voltages.
Here is link to mod http://www.ocforums.com/showthread.php?t=558347