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Overclocking i7 2600k Require Expert Feedback

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December 31, 2011 3:29:09 AM

Hello,

Hello,

I have recently built my second computer for gaming and need some advice on overclocking my cpu. I am new to overclocking and want
to make sure I am doing it correctly. So far I have overclocked to 4.2ghz, 4.5ghz, and 4.7ghz by changing the multiplier and
adjusting vcore with DVID offsets in order to regulate my voltage when at different cpu loads. I have left all other bios functions
at stock. I have used Intel Burn Test at standard with 10 passes 3 times on each clock to ensure minimum stabilty. I am using touch
bios, core temp, and cpu-z to monitor oc info.

1) I would like to know if these oc's are in tolerable limits and if so which would be acceptable for 24/7 use?

2) Why can I only maintain a stable oc when using 1333mhz vs 1600mhz ram? If there is a fix? Does this matter?

***3) I would like to know if using the DVID offset will extend the life of my cpu even running at 4.7ghz due to the fact the voltage is regulated and I never go over 1.4v unless stress testing (4.7ghz - 1.404v)? However when in the bios under pc status I notice that the vcore is not regulated and shows 1.452v at 4.7ghz. So why is this?

4) What is max vcore for 2600k? I have heard 1.35v, 1.4v, 1.45v, 1.52v. What is the standard life expectancy of this cpu at
stock compared to overclocking at 1.4v +. I only need the cpu to last three or four years by then I will want to replace it.

5) Is there anyway to lower the vcore if it is too high through other bios settings?

Here are my computer specs and overclock information.

Motherboard Gigabyte GA-Z68XP-UD4
Cpu Intel I7 2600k
Psu Cosair 1200AX
Ram 16gb Cosair Vengeance 1600mhz
Hdd Intel 320 series 120gb ssd
Gpu Asus Amd 6970
Heatsink Cosair h100

4.2ghz OC
Multiplier 42
Bclk 100
DVID Offset -0.070v
Ram 1333mhz
Bios Vcore 1.272v (In Bios)

(In Windows under full load using IBT)
Cpu-z Core Voltage 1.236v
Max Temps 52 51 53 47

4.5ghz OC
Multiplier 45
Bclk 100
DVID Offset +0.040v
Ram 1333mhz
Bios Vcore 1.380v (In Bios)

(In Windows under full load using IBT)
Cpu-z Core Voltage 1.344v
Max Temps 58 59 60 54

***4.7ghz OC
Multiplier 47
Bclk 100
DVID Offset +1.000v
Ram 1333mhz
Bios Vcore 1.452v (In Bios)

(In Windows under full load using IBT)
Cpu-z Core Voltage 1.404v
Max Temps 61 64 65 63

Any advice or recommendations would be appreciated.

Thank you
Anonymous
a b à CPUs
a b K Overclocking
December 31, 2011 4:17:21 AM

1) Depends on the person's opinion

2) Higher frequency can lower stability. No fix really. Other than raising voltages.
What is the stock frequency? If 1600mhz is not stock than you have to raise ram voltage.

3) DVid does extend lifespan because it lowers vcore while pc is idle saving wear. Don't worry bout the thing in bios. I think it runs/shows max voltage or something like that when in bios.

4) Differs by person's opinion. people say lower than 1.4v, 1.45v, or 1.5v. I'd say never go above 1.5v and try to stay close to or under 1.45v.

5) Enable C-states(doesn't exactly help vcore), lower pll voltage(some people say it helps lower vcore).
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January 9, 2012 1:44:30 AM

Go here bro these guys got it dialed in using methods you are using but it might be a little trial and error of what Im trying to do my self @ 4.3 ghz I crash.

I just swapped my msi p67a gd65 after i ordered this board (same a yours) with a combo kit because it has more features I like btw I didnt have any problems cranking my p67 bpard up to 4.4 by just using the multiplier and had no crashed until 4.5ghz I needed more vcore.
http://www.overclockers.com/forums/showthread.php?p=705...
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