i5 2500k - ASUS SABERTOOTH P67

coops1992 · 10 Oct 2011 at 17:49

Hello,
i have a ASUS SABERTOOTH P67 mother board and an intel i5 2500k Processor.
Can anyone help me with overclocking it?
Maximum settings it could cope with?
its air cooled with a corsair a50 and there are another 2 200mm fans and 1 160mm fan in a cooler master storm enforcer case. ive read a few threads saying a stable OC lets you take the 2500k to 4.6/4.8Ghz.

I have no idea of my way around the graphical bios on my motherboard and have never overclocked before so all help will me hugely appreciated.

Thanks
Coops1992

ChrisGTL · 10 Oct 2011 at 18:25

I would aim for a nice 4.4Ghz on your setup.

Go into BIOS and find these:

AI Overclock Tuner: Manual
BCLK/PEG Frequency: 100
Turbo Ratio: By All Cores
By All Cores: 48
Internal PLL: Disabled

Save, and post us a screenshot of:

CPU-Z
Core Temp

Then run Prime95 and choose 'Torture Test', while that is running post us another screenshot of CPU-Z and Core Temp.

ChrisGTL · 10 Oct 2011 at 18:28

Prime95 http://www.mersenne.org/freesoft/

CPU-Z http://www.cpuid.com/softwares/cpu-z.html

Core Temp http://www.alcpu.com/CoreTemp/

coops1992 · 10 Oct 2011 at 18:47

Thank you for your help. i have set the settings in my bios you previously specified and following are the screen shots

coops1992 · 10 Oct 2011 at 18:48

coops1992 · 10 Oct 2011 at 18:49

coops1992 · 10 Oct 2011 at 18:54

Screen with prime 95 running

Scythe · 10 Oct 2011 at 19:25

Your bus speed should be fixed to 100.0MHz, any more can cause damage.

coops1992 · 10 Oct 2011 at 19:29

how do i fix my bus speed?

ChrisGTL · 10 Oct 2011 at 20:28

Is there an option called spread spectrum at bottom of bios page?

Try change that to disable.

pgi947 · 10 Oct 2011 at 20:54

coops1992 said:
how do i fix my bus speed?

In the bios>advanced>AI Tweeker set 'blck' to 100.00

I posted up some pics the other day from my bios (asus Z68, pretty much the same as the P67) with the settings I use, you could try use them as a template, just changing the MP/voltage as you require.

I also wouldn't say putting the blck a few notches up will damage anything, yes if you put it up ~105 and above, but less than 5% I would say is acceptable (not that I encourage it either).

Howling · 11 Oct 2011 at 01:53

pgi947 said:
I also wouldn't say putting the blck a few notches up will damage anything, yes if you put it up ~105 and above, but less than 5% I would say is acceptable (not that I encourage it either).

I've noticed severe instability issues with base clocks above 102.0 with a high multi (anything over 45x), causes a lot of BSODs and hangs - seen it on 4-5 different chips. Imho it's not worth changing at all, added strain on the whole system for no real benefit.