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post #21151 of 22487
4.8 core at 1.325 and 1.275v on cache at 4.5ghz. I can no longer get 4.9 more than kinda bench stable and that's at 1.4 volts.. I used to run 5.0/4.0 fine at 1.465v. 5.1 at 1.47 for 3dmark stable. I tried upping io and pll voltage and cpu input voltage and dropping cache to 4.0 and lower memory clocks. It just wont get stable at 5.0 anymore or even 4.9. I run fine at 4.8. If it stays here I'll be ok until something better comes along. If I have to drop lower or it destabilizes I may be forced into an early upgrade. Darn typo in cache voltage. My own fault.
post #21152 of 22487
Above 1.35V you're in the space heater area biggrin.gif
Running 1.4V+ everyday all day, no wonder it degrades faster. I guess doable on custom water but still the chip will take a toll year by year.
I don't see the need for high voltage high frequency cache.

You can always sell it and upgrade when it degrades too much wink.gif It should run the stock advertised clocks fine.
post #21153 of 22487
Quote:
Originally Posted by JackCY View Post

I don't see the need for high voltage high frequency cache.

It helps stabilize high voltage high frequency core.

OCD tuning of my RAM OC is finally paying dividends: 4.7ghz core at non-suicidal voltage. Stabilizing 4.2ghz cache was a pain in the ass, and critical for stabilizing the core. Requires exact vRing and I had to perfectly tune RTL/IOL as seen in memtweakit. Doubtful I'm p95 small FFT stable or anything, but an hour of HCi Memtest has thus far meant daily/gaming stable.

Played with IMC voltages. Stock IO volts are most stable, and vSA at -.064 seems best.

Not at all worth it from a practical perspective, but immensely satisfying nonetheless.

post #21154 of 22487
Quote:
Originally Posted by MIXEDGREENS View Post

Requires exact vRing and I had to perfectly tune RTL/IOL as seen in memtweakit. Doubtful I'm p95 small FFT stable or anything, but an hour of HCi Memtest has thus far meant daily/gaming stable.

Don't u think that even a slight bit of CPU degeneration will make those exactly tuned in parameters void in a relatively short time?
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post #21155 of 22487
I've run my 4690k for 6 months at 1.23V, 6 months at 1.29V, and now 6 months at 1.355V. Never really gone over 80C in stressing or 70C in everyday.

When i first started oc i passed a loop of x264 at 0.65V and 20x multiplier. 0.64V wouldn't get into the bios.

Last night a passed a loop of x264 at 0.65V. 0.64V could get into the bios but wouldn't boot (machine bsod, strangely). Hilariously in x264 my highest temp delta was 12C (36c max core with 24c ambient). So, 18 months (6 at high voltage) and no degradation.

Then i tried p95 and it bsod (clock) in under a second. Ha.
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post #21156 of 22487
I keep the multiplier on my 4690K set at 4.7ghz... 24/7

I keep the voltages set at Auto.

I've never had any problems with it, and have barely ever passed 65c during Gaming.

I dont care to test with things like P95... I dont have any games that will push the system to that extent anyway.
     
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post #21157 of 22487
Quote:
Originally Posted by cjc75 View Post

I keep the multiplier on my 4690K set at 4.7ghz... 24/7

I keep the voltages set at Auto.

I've never had any problems with it, and have barely ever passed 65c during Gaming.

I dont care to test with things like P95... I dont have any games that will push the system to that extent anyway.
That's one way to do it lol, although it's not quite the ocn way. Auto voltages at 4.7GHz is deeply concerning. Fwiw my tuned 4790k at 4.7GHz and 1.315v (real) passes 24/7 p95 blend and maxes games at 55c. Aida64 fpu maxes at 75c.
Edited by mouacyk - 8/31/16 at 1:31pm
post #21158 of 22487
Quote:
Originally Posted by mouacyk View Post

That's one way to do it lol, although it's not quite the ocn way. Auto voltages at 4.7GHz is deeply concerning. Fwiw my tuned 4790k at 4.7GHz and 1.315v (real) passes 24/7 p95 blend and maxes games at 55c. Aida64 fpu maxes at 75c.


Why is it concerning?

It works.

I've had it running like that since Feb 2015, with no problems and no Temp issues..

Mind I'm running it on a Corsair H105 Hydro cooler with a pair of Gentle Typoon AP-15's mounted instead of Corsairs default fans.

I did the same with my older 2500K at 4.6ghz for about 3 years straight with an older Corsair H50 and 2 AP-15's on its rad, with no problems. Still using that chip on my back up PC today.
     
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post #21159 of 22487
Quote:
Originally Posted by BrainSplatter View Post

Don't u think that even a slight bit of CPU degeneration will make those exactly tuned in parameters void in a relatively short time?

Depends on what degrades. My IMC was what required such precise tuning, and it's using stock IO volts and undervolted vSA, so I figure worst case scenario my core degrades a little and I have to back the OC down a multiplier or two. I'd never notice the difference anyway.

The one good thing about having a bottom barrel chip and a PTPP is I've got nothing to lose. Absolute worst case, I fry the thing and my replacement is a trash chip too.
post #21160 of 22487
Quote:
Originally Posted by cjc75 View Post

Why is it concerning?

My chip runs fine with auto voltage at 4.7 also. It gives it 1.412V. What's concerning is that you don't know your voltage. As long as you have low end cooling just watching temps is enough i guess.

So after p95 crashed my 0.65V undervolt i haven't been able to get my system to boot. Trying to hunt down my mobo speaker. Pretty strange timing. EDIT: Removing one stick of ram and putting it back in fixed it. How does that make sense at all?
Edited by jdorje - 9/1/16 at 11:26am
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