Crooksy

so, im using my E8600 at 3.8ghz. stock was 3.33ghz. im also using a asus striker 2 formula and using its AI overclock feature so i just put in the percentage of overclock i would like and the mobo does the rest. i realised the mobo put the vcore to high though so i then changed it to what i think is stable 1.21v. 3.33, 3.6, 3.8 are all stable at 1.21 vcore. but when i jump to 4ghz using the 20% overclock it just fails a stress test with 1 or 2 mins at the most. so I upped the vcore to 1.225 and that failed, 1.2325 failed and 1.2375 failed. why does 4ghz take such a jump in voltage or is there something im missing here?

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BikePilot

I'd do the OC in the bios as you have more control that way. Pay attention to what is going on with your memory, you may well be pushing the memory too far. Run Prime95 small FFT to test just the processor (well, mostly the processor) and run memtest or blend (in prime) to test both.

Anyway, to be of much help I'd need to know your other settings (FSB, memory FSB/multiplier etc).

Also watch the temps and report on those at load as well.

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Laptop: Lenovo X61S

Chrono Detector

1.360V or above is recommended. I had an E8500 and I got my CPU stable at 4.01 Mhz with 1.376V.

scupkin

Try 1.35 and go down from there.

Crooksy

the feature is in the bios

are you guys serious?! 3.8ghz at 1.21 and you think i should go 1.36 for 4ghz?

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Crooksy

News just in!

i tried bumping the voltage upto 1.2425 and trid the small data on OCCT and it was running fine for like 6 mins, i had asus ai on so i could watch temps and core clocks and my core clock dropped to 1700mhz, why did it do that?

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BikePilot

Did it drop off while running OCCT or at idle? If power saving features are turned on the mobo may drop the multi when additional speed isn't needed. If it dropped off during OCCT, did you get any errors?

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Laptop: Lenovo X61S

Crooksy

no, i wasn't watching my pc at the time, i have C1e and speedstep turned off, and it dropped to 1700 when i came back on occt small data run. no errors were displayed

should i just be happy with 3.8 at 1.21?
or do you reckon the RAM is stressed at 4ghz? even though it says error on core#0/core#1

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xwinx

your chip is capable of a lot more..
use the BIOS, as others suggested.
Put less pressure on your RAM. Who cares about that little 50mhz that probably won't even make a difference.

bump up your volts right up to 1.36 and then increase fsb from there. play with your multi a bit- maybe you might be in a fsb hole

Crooksy

hmm, as i said, i used the bios, im NOT doing it from windows. Ai overclock may have increase my ram overclock nd im unsure on lowering it. what sort of voltages should i be putting on there?

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