First time OC... need some help.

bennny

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Jun 6, 2012
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Okay, I apologise in advance for my lack of knowledge, but I do plan on learning as much as i can about computer hardware, but for the moment, I'm a complete noob.

I have a new computer setup and I want to OC it. the specs are as follows -

i7 2600k 3.4ghz @ 4.3ghz
Asus P8Z68-V LX mobo
Asus 560 ti 448 @880mhz
8GB G.Skill Ram 1600mhz
Corsair H60
60GB SSD

So, I am going to be doing plenty of video editing and therefore want my computer to be as quick as it can be, within reason of course as I can't afford to buy new bits regularly. I have changed the multiplier in the bios to 43 x 100, I switched off Turbo Mode (which then blacked it out as 'Enabled') and I have set a CPU offset voltage off '-0.010'.

The below pictures are from CPU-Z idle and running under load (Prime95). I have read that 1.3V is pretty high for a 4.3ghz OC, so do I just continue increasing the minus offset in 0.005 increments until at the lowest possible stable voltage?

Any advice would be appreciated.

26575942.jpg


 
what cooler are you using?

and yes just gradually lower the voltage in small increments and test it

if its the stock cooler 4.3ghz is as far as you want to go

if its a good aftermarket cooler 4.3ghz is quite conservative for a 2600k
 

bennny

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Jun 6, 2012
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Hi, thanks for the reply.

It's actually a Corsair H60 closed loop water cooler pulling air into the case which is being expelled through the top of the case. All 4 cores are sitting around 25 Celsius on idle with the 4.3ghz OC, but when under load with Prime95, the temps rise to around 65-70C.
 
one fan or 2 on the h60?

dont forget though prime95 puts your cpu under loads that you wont see in real life use

25c idle is good

at 1.3v on my 2600k i can get to 4.55ghz

and 1.4v for 5ghz

with corsair h80 with 2 air penetrator fans on it
 

bennny

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Jun 6, 2012
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I have set the minus offset to 0.015 but it doesn't make any difference really - 1.312v in CPU-Z. Does the offset number directly relate to the voltage number? Ex. 1.315v with a minus offset of 0.015 would result in a voltage of 1.300v?

So with a i7 2600K with above temperatures and a voltage of over 1.3v, how far do you thimk I could raise the minus offset?
 

bennny

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Jun 6, 2012
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10,510


Just with the stock fan pulling in the case through the rad at the moment, but I have 2 Gentle Typhoon ap-15's on the way for push-pull config. Kind of wish I had gone for the h80 though!
 
this might help explain offset

its that long since i did mine i cant remember the bios settings i used--using a P8Z68-V PRO/GEN3

http://forum.overclock3d.net/index.php?/topic/39090-offset-mode-overclocking-starter-guide-and-thread/