clock at 4.4Ghz vCore 1.4, 1600mhz ram.

BRo Owikh

With Oc formula for CPU PLL... auto or manual ..

what is Different lower and high CPU PLL

Nice effort! Actually memtest 500% is more than enough already.
It is stressful to RAM but for CPU stability always test with Prime95/LinX/IBT.
Good luck

BRo Owikh

With Oc formula for CPU PLL... auto or manual ..

what is Different lower and high CPU PLL

thanks bro. Do another quick test, 4.5Ghz vCore 1.39, 1600mhz RAM

As referred to MVF OC Guide,

As for me, I set PLL to 1.25v and 1.8v both settings also stable.
So let it auto = 1.8v should be fine.

Very nice! So now you are running single channel RAM (single stick only) ?

yeah i running single channel now. just sent the faulty ram to warranty.

however, i run another test for prime95. Setting: 4.6Ghz vCore 1.38, 1600mhz RAM. App crash halfway




whats ur advice bro?

Increase your Vcore. Wait for owikh84 reply first, I could be wrong.

This post has been edited by spdboyz: Jan 24 2013, 07:56 PM

Many possibilities.
Could be insufficient vCore, vdimm, VCCSA, VCCIO, etc and bad RAM settings.

Finally managed to pass HyperPi with G.Skill Trident 2800C11 kit at

2800 11-13-13-35-1T
vdimm 1.775v
VCCSA 1.2v
VCCIO 1.15v

Is mine fine?

3570K at 4.5Ghz, 1.285V. Core temp running Prime95 averages 70 for few hours.

Temps vary from user to user depends on CPU cooler/waterblock, ambient/room temp, casing airflow, thermal paste (TIM), voltage (vCore, VTT/VCCIO, VCCSA, PLL etc).
As long as you keep it under TJMax of 105C the you should be fine.
Your 70C is still okay.

sifus, can i get my future i5 3570K running stable @ 4.5Ghz?
possible using air cooler?
this is my soon-to-be specs

CPU: i5 3570K
CPU Cooler: Noctua NH-D14
Motherboard: Asrock Z77 Extreme4
Chassis: CM Storm Trooper

This post has been edited by Kidz1995: Jan 25 2013, 10:28 PM

Should be fine on air. Pls check out Post #2 for records.

alright : D

can anyone tell me whats going on now? == 4.6Ghz vCore 1.41 and RAM is 1600mhz
i jz do some gaming only...

I believe it's caused by a failed OC resulting in corrupted OS files or missing HDD.
Maybe you should try lower clock or higher vCore.

Actually I need to increase vcore to 1.31 for stability.

Temperature still averages 69-70 but max for for 4 core is still lower half of 70++ with Prime95.

For gaming and cpu intensive work still average 50 to lower half of 60++..

Idling temp is upper half of 30++..

Using CM Hyper 212 Evo - push pull setup.

How long should we run a stress test ? I don't want to leave it whole day running Prime95 cos I dun subscribe to long stress test run where there is possibility of damaging the cpu.

Is there any reason why people should run lower vcore ranging from 1.1 to 1.2?

I'm using normal 1333 Kingston RAM btw, how could this 1333 RAM speed affect the overclocking process?

Temperature seems fine. As long as you keep it below 95c during stress test then its good to go.
For stress test, minimum of 3 hours. Usually I run 6-8 hours of Prime95. Until today, never faced any problem.
Lower vcore = lower temperature = more headroom to oc.
As long as you leave your ram on default settings then it will not affect oc process.

Thanks. I think I am contend with the current setup at 4.5ghz. Pretty stable.