Some questions about QPI/Vtt and memory voltage/timings

[jcool]

Be that as it may, running 1,5V VTT is NOT practical for 24/7 use.
i7 has more than enough bandwidth anyway for everything (not counting some benches).
I'm surprised no one else said anything about the Uncore multiplier earlier, but I am glad it worked for you Major

Donmarkoni, it really comes down to the individual CPU/memory combination. My w3520 could run 2Ghz Dram/4Ghz uncore easily with only ~1,34V VTT or so, but some chips just need excessive volts to go high on the uncore. No reason pushing them really (unless for short-term benching of course)