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Overclocking i5 2500k


reezer

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So my set up is this

 

i5 2500k

mobo: gigabyte z68ma-d2h

Ram: g skill ripjaws 1600 4gig dual channel

VC: sapphire 6850

PSU: OCZ Stealth extreme 2

 

I try and change the multiplier up to 41 and my system works. but when i try 42 onwards my computer is not booting up windows. I have tried to add some voltage but with still no luck and i already set the mems on xmp. what do you think is the problem? TIA!

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I know the 1st gen i7s didn't like even numbered multipliers, not sure about the 2nd gen i7s...as I have not gotten a chance to play with one yet :angry: But, if everything is working with the multi set at 41, why not try and bump the BCLK to get to the OC you are wanting. By the way, what OC are you wanting?

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hmm. I just want to test my rig. And btw i have a notcua nh-d14 and it worked at 43 multiplier. I just the maximum safe oc. here is the pics of the bios.

 

IMG-20110816-00123.jpg

 

IMG-20110816-00122.jpg

 

IMG-20110816-00121.jpg

 

IMG-20110816-00120.jpg

 

IMG-20110816-00119.jpg

 

IMG-20110816-00118.jpg

 

IMG-20110816-00117.jpg

 

IMG-20110816-00116.jpg

 

IMG-20110816-00115.jpg

 

IMG-20110816-00114.jpg

 

IMG-20110816-00113.jpg

 

IMG-20110816-00112.jpg

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I know the 1st gen i7s didn't like even numbered multipliers, not sure about the 2nd gen i7s...as I have not gotten a chance to play with one yet :angry: But, if everything is working with the multi set at 41, why not try and bump the BCLK to get to the OC you are wanting. By the way, what OC are you wanting?

 

You cannot overclock the 2500K via reference clock just the multiplier.....(uggh) Guys ??????:blink::teehee::

 

Just enable turbo. It should take you to 4.8GHz...Multiplier makes no difference if it is odd or even.........

Edited by Drdeath

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You cannot overclock the 2500K via reference clock just the multiplier.....(uggh) Guys ??????:blink::teehee::

 

Just enable turbo. It should take you to 4.8GHz...Multiplier makes no difference if it is odd or even.........

 

 

As I said in my post, I have not gotten to play with a 2nd gen i7 yet!

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As I said in my post, I have not gotten to play with a 2nd gen i7 yet!

 

Ahh I read too quickly sometimes. Overclocking a 2500K is pretty straightfoward. Out of the box I got 4.8GHz with turbo enabled. 2 min later with a vcore jump and CPU/PLL jump, I was 5Ghz 56 hrs stable prime 95.

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Haven't pushed my 2600k past 4.4 ghz. :D (Too fast at stock already :P)

 

Just use Turbo Boost to overclock. Leave Clock multiplier at default 33x. Enable Real Time OS changes, and put 44 instead of Auto in Intel Turbo.

 

That should do the trick. What are the options on the power settings on the CPU - TDP, Current?

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Disabling power saving features, in my bios and leaving voltages on auto, I found I was getting stable 4.8GHz OCs by just setting the multiplier. The i5 2500k is far to easy to OC and on auto voltage the vcore went to 1.34v max on my board, varified with my multimeter bacause I was plesently suprised. No stability issues after 12 hours of OCCT:CPU and same again with Prime 95.

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