Originally Posted by DRKreiger
So what he was trying to do is process of elimination to figure out what you could change to help. Not get the best performance. Find the issue causing the need for so much voltage, and then work out the tweaks for best performance. X58 takes some real trial and error to get it right. It's actually one of the reasons why it was loved so much (and still is), the hunt for the best config intrigues only the best of overclockers!!
pull most of the memory, and things get better, your memory controller is being stressed too much. Turn off HT, and things get better, the cores/motherboard voltage regulator working too hard. But, the biggest factor is, what are all the components in your system??
Fill out the rig builder as complete as possible. so many variables can attribute stability problems. low quality PSU, will require more Vcore. High voltage, average ram can make the memory controller work harder, especially at 32 gigs. A mediocre motherboard will definitely be a huge factor in all of this. What are the complete batch numbers for the chips you have been testing?? I have seen some wildly different results due to batch numbers too.
I use DDR3-1600 three 2GB CL8 1,65 v Ram modules from Corsair Dominator and three 8GB CL9 1,5 v from Crucial. The batch numbers of the cpus (X5660) are 3042A446 and L049B150.Could it be also a too high temperature that is cause this high voltage need? To be honest if I run these cpu burners like Prime95 8k or Core Damage, it is unfortunately very high then with 4,3 GHZ 92°C. I tried undervoltig (good cpus for oc need lower voltage for the same frequency). Both of them need 0,99 volt for stock clock 2,8 GHZ to be stable otherwise they crash with Bluescreen 3B or 124 and as said +0,28 v for 4,3 GHZ (cpu-z shows 1,45-1,47v under heavy load no idea if it’s true have to measure it with a multimeter). What do you need is this a good uv result?