Gigabyte EX58-UD5/Extreme Discussion Thread

[yomny]

For 4.2ghz 24/7 I need 1.376vcore load, 1.42 bios and 1.35qpi/vtt. I will be using it 24/7 as long as I have the chip...when i am not benching at higher settings. My guess is most running at 4ghz+ on this forum are doing so long term or as long as they have the chip.

1.35 qpi/vtt is intels max...but some need in low 1.4's range, it is variable per cpu. One person needed crazy high like 1.7, then bought another cpu and only needed 1.3's. Personally, I would have no problem running it in low to mid 1.4's for 4ghz and some are, but just dont need to on mine... each person has to decide on their own risk tolerance.

And DRAM v should be within .5v of qpi/vtt, benching I am keeping mine within about .35.

Benching, between spi 32m, both chess stress test/benchmarks, cinebench, pc mark, etc, I probably have 24hrs+ at prime type loads with 1.96-2v DRAM (to get uncore at 4500mhz and mem at 2000mhz) and 1.62-1.64qpi/vtt, 1.66vcore...cpu still Oces at exact same settings. I wouldn't run these 24/7 or even close to it...but benching I have had no problems with those volts.

Thanks a mil for this little guide it's been quite helpful, im a bit confused though as to why some cpu's need qpi/vtt higher than others isn't the qpi/vtt a voltage that allows the boards to boot at higher bclk, or is this voltage setting communicating between the board's bclk(fsb) and the vtt of the cpu? sorry for some reason i think qpi is like FSB on previous chips and vtt is cpu termination voltage, normally these two wouldn't be together.

Regardless when i set the qpi/vtt to 1.42 is still in the safe range of the boards settings, guiding myself by the colors where yellow is good, purple is still safe, then red means too darn high. According to this up to 1.46 i think im still in the purple area. When i set the votlage settings to auto the board adjusted to 1.42 qpi to get to 213 bclk but it wouldn't adjust higher than that if i tried a higher bclk.