Noob OC help

[javier_machuk]

i just finished installing a cooler master 212 EVO cooler on my machine.. My specs are:
core i5 2500k
asus z68-v mobo
2x4 GB gskill sniper 1600MHz cas9 1.25V ram
intel 510 ssd 128 Gb
500 GB hdd
xfx 750W psu
cooler master cm690 II case

the thing is.. i put 4.4 GHz by all cores on the bios and 0.010 V +offset. I am running prime for about an hour now, cpu-z shows Vcore=1.250 and the temps are around 63 to 67 degrees.. Is this any good? are the temps ok? and the vcore? this is the first time i try OCing, and i am open to suggestions!

 

[Kenmitch]

Your temps and vcore seem fine to me. Make sure it's stable and then you could possibly lower the vcore a little bit more.

 

[cmdrdredd]

it's alright, run prime for longer to ensure stability.

 

[BonzaiDuck]

i just finished installing a cooler master 212 EVO cooler on my machine.. My specs are:
core i5 2500k
asus z68-v mobo
2x4 GB gskill sniper 1600MHz cas9 1.25V ram
intel 510 ssd 128 Gb
500 GB hdd
xfx 750W psu
cooler master cm690 II case

the thing is.. i put 4.4 GHz by all cores on the bios and 0.010 V +offset. I am running prime for about an hour now, cpu-z shows Vcore=1.250 and the temps are around 63 to 67 degrees.. Is this any good? are the temps ok? and the vcore? this is the first time i try OCing, and i am open to suggestions!

Which Prime95 test are you running? Not knowing whether it's small-FFT, Large-FFT or "Blend" test, that doesn't look too bad. The load voltage is probably about where it should be; in the area around 0.010 is about where the offset is likely to be.

Have you fiddled with the LLC motherboard feature yet? You might be able to get the system stable at 4.5 Ghz without the use of LLC. Somebody else here might be able to guide you for higher over-clocks, but you seem to have some decent settings and temperatures.

 

[javier_machuk]

Thanks! I wanted to make sure that i was doing it ok.. the bios has a setting PLL overvoltage.. i just let it in "regular" i think, is it ok? also, if prime runs fine for 10 or so hours can i assume the OC is stable or is there another test that i should run? if i want to try something like 4.6 GHz should i up the vcore?

EDIT: prime is small FFT

 

[borisvodofsky]

High LLC, offset MINUS 0.25v

Phase control, optimized
Duty control, extreme

C1e, c3, c6 disabled

Cpu pll voltage 1.65v

This should get you to 4.7-4.8 guaranteed.

If you want much more than 4.8, you're gonna need to use Offset Minus 0.10v

I have your exact same motherboard/cpu

 

[BonzaiDuck]

See -- I knew Boris would kick in on this.

As I understand it, the PLL OVervoltage may become useful for higher settings than 4.5. And -- also as I understand it -- it doesn't exactly "over-volt" anything of consequence.

Boris doesn't like the C1e, C3 and C6 settings. He didnt' say anything about EIST. But you should be able to enable most of those features at a slightly higher clock, I would think.

It's a matter of choice and preference . . . And it might require some variations in the settings he suggests .. .

 

[javier_machuk]

High LLC, offset MINUS 0.25v

Phase control, optimized
Duty control, extreme

C1e, c3, c6 disabled

Cpu pll voltage 1.65v

This should get you to 4.7-4.8 guaranteed.

If you want much more than 4.8, you're gonna need to use Offset Minus 0.10v

I have your exact same motherboard/cpu

Now i am testing 46x100 MHz, with cpu pll enabled, Load line set to high and offset to +0.010 i think i left pll voltage on auto, don't remember really.

Taking a look at AIDA64 says cpu pll 1.800V, and vcore 1.312 V, is the PLL voltage to high?Phase control and Duty control i think they are where you said.

Previously i tested with llc set to regular and one of the cores failed prime, the vcore was 1.25 when it failed.

Are you sayng that i shoud use a NEGATIVE offset?

 

[javier_machuk]

and i left all the power saving features on

 

[cmdrdredd]

I keep C1E on. It doesn't affect clock speeds you can hit.

 

[borisvodofsky]

I keep C1E on. It doesn't affect clock speeds you can hit.

I turn C1E off because it's a "just in case" situation. The power it saves is negligible.


TURN OFF as many power saving features as you can. EPU off, flip the switch on the board as well.

Make sure that bogus TPU switch is set to off as well.

Yes your offset should be NEGATIVE with the HIGH LLC

CPU PLL voltage is the voltage setting at the bottom menu, NOT the "INTERNAL CPU PLL OVERVOLTAGE" that is a different setting.

A lower cpu pll voltage has been shown to improve stability at high multipliers. DON"T AS WHY, no one knows.
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for the 2500k if you are staying BELOW 48x, you don't need this feature enabled.

If you want 48x+ you will need to enable internal cpu pll overvoltage.