Overclocking for a dummy z77 ud5 2700k

rossiboy001 · 21 Apr 2012 at 17:48

Hi just built my system with the above , was hoping for a simple auto overclock like on my q6600 board but so far havent found, therefore looks like iv got to do it the old fashioned way ,
Can anyone direct me to a link or advise , Iv looked around and on youtube its full of videos , but most seem quite old and i suspect are q6600"s , I understand sandybridge"s are different ,dont want to follow the wrong steps for my setup .
I believe though all i have to do is up a multiplier not the FSB , until its not stable then , increase the voltage if needed , within its safe limits , and carry on until i get it stable , looking for 4.5 ghz for everyday use . ?
Any help please for a newb on me first manual attempt ?

rossiboy001 · 21 Apr 2012 at 20:41

Dont worry think I sussed it now , Just two questions , what increments is considered advised to step up voltages , when i reach the point of instability ,second , when i use core temp I obviously get 4 core readings , some are cores go higher than others , if only by a small margin , should i consider judging the safe limit as the average , or the highest temp on a given core , from previous reading i believe 70 degrees under stress is the ceiling . ?

beejjacobs · 21 Apr 2012 at 20:51

Hi, this might help. From the product page on OCUK:

***OVERCLOCKING GUIDELINES***

- Do not exceed 1.425v core voltage, doing so could limit lifespan of the CPU
- Aim to keep temperatures below 70c underload if at all possible
- Do not overclock with BCLK, again doing so could limit lifespan of the CPU
- Recommended memory voltage is 1.50v, so make sure to run your memory at 1.50v, higher than 1.60v could limit lifespan of the CPU
- These recommendations come from OcUK and Intel, your warranty is un-affected but we highly recommend you adhere to the above to make sure your CPU lifespan is un-affected
- All Sandybridge CPU's worldwide should be run at the above or lower voltages, no higher!

So yeah you should try to keep below 70C. If under real stress [prim95 or IBT] it goes a bit above I wouldn't worry, as under normal conditions it shouldnt get as hot as in the tests.

Its normal for the cores to be different temperatures by the way

beejjacobs · 21 Apr 2012 at 20:55

Btw this might be useful for you

http://forums.overclockers.co.uk/showpost.php?p=21724689&postcount=20

rossiboy001 · 21 Apr 2012 at 23:16

Thanks , for the advice all , So far im at 4.3 on stock volts , I have worked it up to 4.5 on 1.056V , no signs of crashing but 2 cores where in to the mid 80"s , so gone back , But more so , maybe its just coincidence , but my kingston hyper genesis 2x4 gb , i reduced their volts this morning to 1.58 , iv further reduced them tonight to 1.50 , it seems there is an impact on the core temp as well , is this correct , should this as its not putting as much stress on the CPU , giving me more scope for CPU overclocking ?

beejjacobs · 21 Apr 2012 at 23:30

rossiboy001 said:
Thanks , for the advice all , So far im at 4.3 on stock volts , I have worked it up to 4.5 on 1.056V , no signs of crashing but 2 cores where in to the mid 80"s , so gone back , But more so , maybe its just coincidence , but my kingston hyper genesis 2x4 gb , i reduced their volts this morning to 1.58 , iv further reduced them tonight to 1.50 , it seems there is an impact on the core temp as well , is this correct , should this as its not putting as much stress on the CPU , giving me more scope for CPU overclocking ?

Changing the RAM voltage shouldn't affect CPU temperatures. Probably another factor has come in to play too.

4.5Ghz at 1.056V is awfully impressive if that is stable!? Have you run prime95/intel burn test to check stability and temperatures?

Surveyor · 21 Apr 2012 at 23:33

rossiboy001 said:
But more so , maybe its just coincidence , but my kingston hyper genesis 2x4 gb , i reduced their volts this morning to 1.58 , iv further reduced them tonight to 1.50 , it seems there is an impact on the core temp as well , is this correct , should this as its not putting as much stress on the CPU , giving me more scope for CPU overclocking ?

As the memory controller in on the processor then lower DRAM voltage may have a benificial effect on the processor temperature.

DRAM voltage must have some effect on the processor as too high a DRAM voltage may reduce the lifespan of the CPU.

rossiboy001 · 22 Apr 2012 at 00:03

Surveyor said:
As the memory controller in on the processor then lower DRAM voltage may have a benificial effect on the processor temperature.

DRAM voltage must have some effect on the processor as too high a DRAM voltage may reduce the lifespan of the CPU.

Thats what I was thinking , it does kinda make some sense ,
Beejjacobs , yeah iv been at it all night , running it now in the background , no signs of crashing or any instability so far , and thats with a few spells of r factor 2 , and project cars , Though the temperatures sky rocket from 4.3 at mid sixties on the highest core to over 85 on the highest at 4.5 , 4.4 is not much different and turbo boost is obviously disabled and even without hyper threading switched off .
Seems that the CPU is good so far , just the cooling performance drops of a cliff at 4.4. , 4.5 .
Im using the 620 antec kuhler which came with the ud5 , though i have added an extra fan on the inner side too, which the inside one is pushing air into the rad , the fan supplied is sucking from the other side , iv also kept the case window of so that air is room temp and not drawing from the GPU

rossiboy001 · 22 Apr 2012 at 10:33

Worked out why my temps were going through the roof at 4.4. , 4.5 , Voltage set to auto , picked that up , through researching other threads , you live n learn , but at least that ill be better judging my cpu limits than my motherboard .
Got to 4.5 on 1.3V seems stable on prime 95 , and temps 55-60 . Got where I wanted to be at 4.5 if this holds .
Does turbo boost work at these speeds ? would it push my CPU to 4.9 on current settings , and perhaps best to disable as I have already ?
Would disabling my CPU graphics improve temps , and overclocking potential further ? would I lose some FPS , running a 6970 , I know this board is supposed to have lucid vertu and that graphics boost , but i have not found it , perhaps i need to install it from the driver disk ?
Do most people disable the smart stepping thing and let there overclocks run constant at their settings ? , is this really just a waste of energy to do this ?
Thanks all .