GA-EX58-UD5 - F5e finally is a stable bios for me. Tried a lot, futile so far.
Now 26x150 @ 1.4 vcore and 27x150 @ 1.4750 vcore both hit 8 hours stable ortho. Only problem is the temperature: 78 C load and 85 load C respectively.
Using Thermalright 120 extreme black with 2 scythe SFF21F on the i7 965 Extreme and UD5 mobo doesnt seem to temper these temps. Maybe replace the thermalright with new artic?