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Pushing the i5 2500k upto 5GHz?

post #1 of 13
Thread Starter 
Hey,

I got my i5 to be stable at 1.31v at 4.5GHz.
The load temps are at 55 max 60.
I have been testing for stability using Linx, for around 50 passes.

Every time that I try to push over I get instability...even with higher voltage.
Do I need to change anything else? I have heard that changing the DRAM voltage might help, but to how much should I set it?

Thanks.
post #2 of 13
Sadly you probably aren't able to get it to 5 GHz it's really luck of the draw on CPU batch numbers. Have you tried slowly stress testing working your way up from 4.5 to 4.6 to 4.7 and so on increasing the voltage as you go? What have you tried so far?
     
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post #3 of 13
The first question is, how high did you go?
Try 4.6 ghz, with 1.4v vcore, and turn on loadline calibration. This should at least get you in, if you were stable at 1.31v.

If 1.4v doesn't help, then you may need to turn on the setting CPU PLL Overvoltage, as you may have hit a multiplier wall with it disabled. Then you can go from there.
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post #4 of 13
Thread Starter 
I went upto 4.6GHz with 1.35 but it had lots of BSOD. Never tried pumping more volts.
What would you guys consider as a safe voltage / temp for 5GHz?
post #5 of 13
Keep it under 1.4v for now.
Turn on loadline calibration, then try a maximum of 1.39v and try 4.6 and 4.7 ghz. If you weren't using LLC, you were probably getting massive vdroop.

If you find yourself unable to POST or load windows, try enabling what I said last post.
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post #6 of 13
Thread Starter 
I can not find anywhere the load line option.
post #7 of 13
Do you have pll overvoltage enabled
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post #8 of 13
Thread Starter 
No, it is disabled.
post #9 of 13
Well enable it it'll make it run a little hotter but it should help you get to a higher OC.
     
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post #10 of 13
enable it then... it is needed for anything above 4.8+,

you might also want to increase your pll voltage to 1.86 or so if you want 5ghz

Edit: phazer11 beat me to it.
Edited by badatgames18 - 4/16/11 at 3:25pm
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