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i5 2500k 4.8ghz problems, need assistance

post #1 of 17
Thread Starter 
I am trying to get my i5 2500k stable on a 4.8Ghz overclock, but i either have terrible luck on buying CPU's or i suck at overclocking, lol..

I am trying to achieve 4.8ghz for now using:

48 multi
Interal PLL overvoltage: Enabled / Disabled, tried both.
LLC: Ultra High
VRM Freq: 350
Phase: Extreme
Duty: Extreme
CPU Voltage: Manual, started with 1.415 upto 1.430

Everything results in a BSOD as soon as i start Intel Burn Test.

As soon as i put everything on AUTO and go for a 48 multi, the CPU is stable but it puts my voltages between 1.430 upto 1.480 (according to CPU-Z, see screenie) and temps raising to about 75 / 80 degrees celcius. (h50 p/p)

m7ccl.png

Does this mean the manual input of 1.415 - 1.430 is still too less? Do i have a terrible chip? or am i messing something else up?

Some advise / suggestions are very welcome, have been reading all kind of guides a dozen times.
Thanks in advance!
Edited by rck1984 - 4/10/11 at 7:04pm
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post #2 of 17
more vcore, try 1.45 and judging by thos gflops your not using the upto date linkpack.


EDIT:Here is IBT with updated linkpack.
Edited by munaim1 - 4/10/11 at 7:25pm
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by munaim1;13078583 
more vcore, try 1.45 and judging by thos gflops your not using the upto date linkpack.

Thanks for the reply, 1.45v is a tad high though for 4.8ghz isn't it? What about LLC? Seen people turning it off and in other guides they advise to put it on.

Could be i'm not using upto date linkpack btw, fixing that as we speak thumb.gif
Quote:
EDIT:Here is IBT with updated linkpack.

Awesome!
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post #4 of 17
Quote:
Originally Posted by rck1984;13078637 
Thanks for the reply, 1.45v is a tad high though for 4.8ghz isn't it? What about LLC? Seen people turning it off and in other guides they advise to put it on.

Could be i'm not using upto date linkpack btw, fixing that as we speak thumb.gif



Awesome!

Try This:

VCCSA Voltage: Auto it's advised not to touch that one
VCCIO Voltage: Auto for now (taking it 1.1 may help stability)
CPU PLL Voltage: 1.75v
Auto PLL Overvoltage: Enabled
PCH Voltage: Auto
VRM Frequency: 350
Duty Control: Extreme
Phase Control: Extreme
CPU Capability: 120%
Digi + VRM Current Capability: Auto - 100%
CPU Multi 48 by each core
CPU BCLK: 100 sb doesn't like changes in bclk
CPU voltage: 1.45v Manual
DDR Voltage: Rated stock volts
Spread Spectrum: Disabled
LLC: High or Ultra High (check which one works better for vdroop)

Test those with IBT and reduce or up vcore when bsod. biggrin.gif keeping the power saving featues on doesnt effect overclock
Quote:
Originally Posted by coolhandluke41;12335363 
I think this may be helpful for some of you,found this on XS

The OverClockers BSOD code list
BSOD codes for overclocking
0x101 = increase vcore
0x124 = increase/decrease vcore or QPI/VTT...have to test to see which one it is
0x0A = unstable RAM/IMC, increase QPI first, if that doesn't work increase vcore
0x1E = increase vcore
0x3B = increase vcore
0x3D = increase vcore
0xD1 = QPI/VTT, increase/decrease as necessary, can also be unstable Ram, raise Ram voltage
0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances
0x50 = RAM timings/Frequency or uncore multi unstable, increase RAM voltage or adjust QPI/VTT, or lower uncore if you're higher than 2x
0x109 = Not enough or too Much memory voltage
0x116 = Low IOH (NB) voltage, GPU issue (most common when running multi-GPU/overclocking GPU)
0x7E = Corrupted OS file, possibly from overclocking. Run sfc /scannow and chkdsk /r

and for all of you with GB mobos you should read this;
http://www.overclock.net/intel-general/910467-ultimate-sandy-bridge-oc-guide-p67a.html
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post #5 of 17
Thread Starter 
Thanks for the help, however i am still getting BSOD (124).
I tried putting Vcore on 1.450 untill about 1.465 also tried putting VTT on manual 1.10000, still BSOD.

Does that mean it still needs more Vcore? :S Do i have such a "bad" chip? I mean i have seen plently of people reaching 4.8Ghz on ~ 1.37500v.
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post #6 of 17
Quote:
Originally Posted by rck1984;13078977 
Thanks for the help, however i am still getting BSOD (124).
I tried putting Vcore on 1.450 untill about 1.465 also tried putting VTT on manual 1.10000, still BSOD.

Does that mean it still needs more Vcore? :S Do i have such a "bad" chip? I mean i have seen plently of people reaching 4.8Ghz on ~ 1.37500v.

more vcore unfortunatly, I'm sure you have seen plenty of people reaching those speeds with low voltage but there are some like your self that just cannot, you have to remember every chip is different.

with 1.45v, how long did it take for it to bsod?
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post #7 of 17
Thread Starter 
Quote:
Originally Posted by munaim1;13079043 
with 1.45v, how long did it take for it to bsod?

Within 15sec actually..
Giving it more Vcore, probably around 1.47000 will raise my temps quite a lot i guess, hmm...
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post #8 of 17
I would definitely advise you to tone down the overclock. Put 1.4v and lower multi to 46, reduce the vcore until it becomes unstable, then put it up one notch to the correct stable vcore.

By the way when you did get it to run, on auto, what temps were you getting in load?

Personally I dont use Intel burn test or Linx as it seems overkill, it makes my load temps 10/11c more. I would recommend using prime blend as a way of testing stability.
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post #9 of 17
Thread Starter 
70, 75, 77, 73c after a couple IBT passes, so temps raised quick, using a h50 push/pull.
I have been noting down my previous overclocks, on 4.5Ghz / 1.35000 Vcore i had 20 passes of IBT to get a "quick" indicator if it was stable or not. That was without LLC if i am not mistaken.
Edited by rck1984 - 4/10/11 at 8:15pm
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post #10 of 17
Quote:
Originally Posted by rck1984;13079159 
70, 75, 77, 73c after a couple IBT passes, so temps raised quick, using a h50 push/pull.
I have been noting down my previous overclocks, on 4.5Ghz / 1.35000 Vcore i had 20 passes of IBT to get a "quick" indicator if it was stable or not. That was without LLC if i am not mistaken.

that is actually not bad considering that your on air and pumping 1.48v for 4.8ghz. I personally try and keep my temps below 70c.

LLC reduces vdroop on load, so was that 1.35 in the bios or under load?

EDIT: You should try your previous overclock sttings with the updated linkpack.
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