Quote Originally Posted by GJW View Post
Here is where I am on my lack of ability to change core voltage.

I tried the last three bios versions that support a QX9650, 1358, 1397 and 1478. This is actually all the bios's that support a QX9650. Based on Everest no matter what you change the CPU voltage to, there is no effect on CPU voltage. However if I use the 300mV offset (I know this is bad but max CPU temp was 145F during 2 minutes of 100% load so I don't think I'm in the danger zone) Everest shows the CPU voltage going to 1.48 volts (it seems to read about .05 volts low based on what I have observed). So if it's running stock voltage of 1.238, add .300 volts you get 1.538, allow for Everest error, and it's accurate. While I can certainly live with this voltage based on the core temp, I'd really like more ability to change the voltage other than +.300 volts.

I have turned it on and off, cleared CMOS, tried just about every combination I can think of to see if it works and every time the changes I made to CPU voltage don't happen, based on Everest. At this point I really don't know what else to do. I have not tried putting the QX6850 back in and trying the various bios's and what not, but I'm not optimistic. There is one older version I can run with a QX6850 for testing purposes to see if that has any impact, 1308.

If I knew for sure this was a board problem, I'd buy another board in a heartbeat, but I just don't know for sure....I'm open for anymore thoughts.

jerry

Seeing similar results with a QX6850. I can set the voltage to 1.4V for example in the BIOS, and it shows the change. However, Everest only shows the default 1.35V. Severely putting a damper on my overclocking efforts. BIOS 1307. I've got the FSB at 375 with my memory now running at 1500MHz stable, however, I can't get the multiplier past 8 (3GHz).