Core i7/X58 Overclocking Thread

[rge]

What the hell? How can you have turbo when you are not running your default multiplier? Some kind of feature (bug) in the Gigabyte BIOS?

If it is, I want this on the R2E...

On a different note, I think I finalized my clocks more or less for now. I am running at 179x23 (with turbo on) for a 4117MHz net core clock, 4 cores, 8 threads. Memory is running at 1794MHz and I will probably tighten the timings a bit from the current 8-8-8-24-2T. The voltage required to do this was 1.448V core, 1.35 QPI/DRAM, 1.65V DRAM. All else is auto, including LLC. All CPU power states are enabled as well (i.e., all settings are default).

This seems to be where my air-cooling caps out. If I bump the volts any higher temps are climbing to 90s so I think I will stay right here max. Right now I cap out at about 88C with all 8 threads loaded 100% over extended periods of time.

Maybe I will get better cooling down the line, but we'll see. Not bad for air though I think

MSR registers on cpu show max multi/turbo as 23,23,23,24 on i940, which is apparently what governs turbo, unless bios can set other limits. With turbo enabled i920 will always be at 21 multi, and i940 23 multi, regardless of setting multi in bios at 15, 17, 18 or whatever. If you want +2 multi, you have to deactive all cores but one in bios...so dont see purpose of +2 multi.

If Asus bios is doing something differently, would be good to know. It would be nice to be able to set turbo limits ourselves...so I can use 21 etc multis with my i940 with turbo enabled.

And yeah 4.1 on air is pretty good, Im on water and that is likely where I will end up for 24/7.