Quote:
Originally Posted by Imprezzion 
True. Some chips can go VERY low on PLL.
My old 5.3Ghz 2500K ran that at 1.496v vCore and 1.550v PLL. (1.15v VCCIO/1.05v VCCSA and 8GB 2133 C9 RAM).
Just a shame I haven't come across a 2600K that can do 5Ghz at reasonable voltages.
If you use 1600Mhz RAM or something like that, you can drop VCCIO/VCCSA as well for a few less degrees. Try 0.9v VCCSA and 1.00v VCCIO (if they are linked, just lower it by 0.05v at a time)

True. Some chips can go VERY low on PLL.
My old 5.3Ghz 2500K ran that at 1.496v vCore and 1.550v PLL. (1.15v VCCIO/1.05v VCCSA and 8GB 2133 C9 RAM).
Just a shame I haven't come across a 2600K that can do 5Ghz at reasonable voltages.
If you use 1600Mhz RAM or something like that, you can drop VCCIO/VCCSA as well for a few less degrees. Try 0.9v VCCSA and 1.00v VCCIO (if they are linked, just lower it by 0.05v at a time)
Must be the HT that demands more v+, I guess.
I do use 1600mhz CAS8 RAM. I've had it overclocked to 1866 C9 this week with the CPU at 4.5ghz, but I think I'm going to revert the RAM to stock and try to stabilize 4.8ghz and see what that's like.
Lowering the VCCSA/VCCIO is an excellent idea; thank you. I could definitely use the help with temperature creep. I found out yesterday that its nice and cool for 30min benching, but after that the weak fans become a hindrance and it does start to get toasty.
EDIT: Tried 4.8ghz the past couple nights. The CPU likes max llc (1) only at that speed (0.0005V+ offset; the minimum bootable) at 1.39-1.42v, and seems stable so far. Quite a head scratcher, as LLC1 has a lower idle. I'm gonna see how much more it needs for 5ghz next (which also oddly demands LLC1).
At 4.8ghz LLC2/3, when I exceed 1.38v to overcome P95 worker crashes it becomes less stable and refuses to boot; seems very strange to me.
Anyway, thanks again for the advice everyone. It seems to like lower PLL/VCCIO/VCCSA voltages, and it's helped me to progress. I'll update once it's stable.
Edited by Almost Heathen - 11/14/13 at 12:00am















