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Power supply overclocking 12v rail ripple

post #1 of 5
Thread Starter 
This is the power supply I have

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=7
(Notice the 110ma ripple on the 12v rail)

It's 6-7 years old now and quite beatup.




Right now:1.42 volts,2600k @4.4ghz. (Below this voltage unstable)

Yesterday: 4.7 ghz, 1.47v, OCCT power supply test(stresses cpu and gpu), no crashes.

Went to browse the Internet, froze an hour later. Freezing occurs mainly when idle.
No BSOD, just black/white screen/frozen image.



My 2600k seems to be a poor chip. The freezing at idle makes me want to believe it could be something to do with either my power supply or the load line calibration vdroop.

I have the LLC set to extreme in my p8z77-m pro. If I lower the LLC I crash much sooner, and I have to put way more voltage.


Think the PSU could be the issue?
post #2 of 5
If its 6-7 years then it might very well be on its way out but i cant say that for sure
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Seravee
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post #3 of 5
Sounds like too much LLC to me. Reduce LLC, increase Vcore and try to use an offset Vcore which will mean the Vcore will drop with CPU Clock speed.
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post #4 of 5
Quote:
Originally Posted by jigglywiggly View Post

My 2600k seems to be a poor chip. The freezing at idle makes me want to believe it could be something to do with either my power supply or the load line calibration vdroop.

I have the LLC set to extreme in my p8z77-m pro. If I lower the LLC I crash much sooner, and I have to put way more voltage.


Think the PSU could be the issue?

Sounds like you don't understand LLC's purpose and configuration to me. Use offset to increase your voltage like the other poster said for a more stable and energy efficient overclock, and lower your load-line calibration from Extreme to medium or high. LLC doesnt cause vdroop, and it isnt supposed to be doing anything when the CPU is at idle. Also it is bad for your processor to run really high levels of LLC because it can hammer the CPU with massive voltage spikes, best if you keep it turned down to one of the two lowest settings.
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by EniGma1987 View Post

Sounds like you don't understand LLC's purpose and configuration to me. Use offset to increase your voltage like the other poster said for a more stable and energy efficient overclock, and lower your load-line calibration from Extreme to medium or high. LLC doesnt cause vdroop, and it isnt supposed to be doing anything when the CPU is at idle. Also it is bad for your processor to run really high levels of LLC because it can hammer the CPU with massive voltage spikes, best if you keep it turned down to one of the two lowest settings.


Yeah I know, it tries to keep a constant voltage at all loads instead of dropping it on load while current increases. I know the overshoots are probably what is causing the issue.


So for now, I put it at 1.52 volts and LLC set to high and it seems stable so far.


I didn't know there was a difference between manual voltage and the offset, I'll play with that.
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