2500K Max OC???

Day to day, I use mine at 4.8GHz.

Mine will do the following rounded up:

4.9GHz @ 1.40v
4.8GHz @ 1.34v
4.7GHz @ 1.30v
4.6GHz @ 1.28v

I had another 2500K that did 4.5GHz @ 1.33v, 4.6GHz @ 1.34v, it woudn't clock any higher.
 
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Nelly said:
Day to day, I use mine at 4.8GHz.

Mine will do the following rounded up:

4.9GHz @ 1.40v
4.8GHz @ 1.34v
4.7GHz @ 1.30v
4.6GHz @ 1.28v

I had another 2500K that did 4.5GHz @ 1.33v, 4.6GHz @ 1.34v, it woudn't clock any higher.
Click to expand...

Thats pretty sweet for the voltages, similar to mine.

Every chip is different tho :(

im suprised how well 1.42v does for 5GHZ
 
jacob1995knight said:
Thats pretty sweet for the voltages, similar to mine.

Every chip is different tho :(

im suprised how well 1.42v does for 5GHZ
Click to expand...
Yeah my better CPU was a Costa Rica one. I used IBT to test stability with decent temps.

I didn't manage to stablise 5GHz, going from the increments of voltage, I reckon it would have taken 1.48v, but I wasn't prepared to take it beyond what I already tried. :)
 
Nelly said:
Yeah my better CPU was a Costa Rica one. I used IBT to test stability with decent temps.

I didn't manage to stablise 5GHz, going from the increments of voltage, I reckon it would have taken 1.48v, but I wasn't prepared to take it beyond what I already tried. :)
Click to expand...

Yeah, totally agree, you get a different limit with each chip :(

I used to run 4.8ghz for ages, then I played some more, until I got to the 5.00 mark, I don't see the need to run any higher, I mean I'm already 1.3ghz higher then stock...
 
Disco_P said:
You might find that a certain speed requires a big jump in vcore. My 2550k does:
[email protected]
[email protected]
[email protected]
4.7 unstable at 1.41
4.8 unstable at 1.45

So 4.6 is the sweet spot for me.

I would mess around with load line calibration or vdroop settings. I know roughly where they'll be on your mobo as I have a similar board.
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Looks like you got the short end of the stick with that processor :( low overclock without high voltage :(

I got lucky with mine, [email protected] stable
 
jacob1995knight said:
Looks like you got the short end of the stick with that processor :( low overclock without high voltage :(

I got lucky with mine, [email protected] stable
Click to expand...

With the exception of my current reference 780 I have lost every single silicon lottery I have played. I had a 780 lightning that was unstable at +26mhz, 680 and 660 before that were the same.

It's possible I am doing something wrong, but I have Googled every setting on the z77 mpower and they are all on the more overclocking friendly option.

That being said the only voltage I am adjusting is vcore, all the others are on auto.
 
Disco_P said:
With the exception of my current reference 780 I have lost every single silicon lottery I have played. I had a 780 lightning that was unstable at +26mhz, 680 and 660 before that were the same.

It's possible I am doing something wrong, but I have Googled every setting on the z77 mpower and they are all on the more overclocking friendly option.

That being said the only voltage I am adjusting is vcore, all the others are on auto.
Click to expand...

Out of the blue, what power supply are you using, age, wattage?

This does sound like an issue with the motherboard however.
 
jacob1995knight said:
Out of the blue, what power supply are you using, age, wattage?

This does sound like an issue with the motherboard however.
Click to expand...

PSU used to be a 600W PCP&C Silencer MKIII. I switched to a Corsair RM850 whilst I had my 680 and the max overclock I could get didn't change.

Motherboard used to be a Gigabyte Z68X-UD3-B3 which I only used for clocks up to 4.2Ghz and nowadays it's an MSI MPower. It's my 2nd MPower (first died after a year) and there has been no change in the clocks I can achieve.
 
TBF that sounds like very bad luck, my 770's are both +110Mhz on core with no voltage bump.
now running 4.6Ghz @ 1.375 Vcore.
so today i will do 4.7Ghz and game all day, i dont just want a moosive clock it as to be usable too.

temps i get now are GPU a massive 37c(Load).... and CPU 51c (Load)
Load is gaming not stress testing

the boy on dirt showdown free running for 2hr's(this when max temp was hit)
Me titan fall, Cod, Sniper elite 3.
 
Disco_P said:
PSU used to be a 600W PCP&C Silencer MKIII. I switched to a Corsair RM850 whilst I had my 680 and the max overclock I could get didn't change.

Motherboard used to be a Gigabyte Z68X-UD3-B3 which I only used for clocks up to 4.2Ghz and nowadays it's an MSI MPower. It's my 2nd MPower (first died after a year) and there has been no change in the clocks I can achieve.
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Wow Disco P, you are truly unlucky :( i dont think i have ever reached the limits of my 2500K, never pushed it that far.....

P4Clock said:
TBF that sounds like very bad luck, my 770's are both +110Mhz on core with no voltage bump.
now running 4.6Ghz @ 1.375 Vcore.
so today i will do 4.7Ghz and game all day, i dont just want a moosive clock it as to be usable too.

temps i get now are GPU a massive 37c(Load).... and CPU 51c (Load)
Load is gaming not stress testing

the boy on dirt showdown free running for 2hr's(this when max temp was hit)
Me titan fall, Cod, Sniper elite 3.
Click to expand...

I too get over 110Mhz overclock on both of my R9 290Xs, but as the cards are new (water cooled however ;) ) the coil whine does my head it!!!

As for temps, i get 26.c idle for the cpu and a similar result for the graphics cards, but under load, im hitting 45 - 50 on the cpu and around 55.c on the cards.

To be fair, i need to upgrade my water cooling asap as its not up to the job of a 5.00Ghz processor and two 290X's that are running a high overclock.
 
jacob1995knight said:
I too get over 110Mhz overclock on both of my R9 290Xs, but as the cards are new (water cooled however ;) ) the coil whine does my head it!!!

As for temps, i get 26.c idle for the cpu and a similar result for the graphics cards, but under load, im hitting 45 - 50 on the cpu and around 55.c on the cards.

To be fair, i need to upgrade my water cooling asap as its not up to the job of a 5.00Ghz processor and two 290X's that are running a high overclock.
Click to expand...

I am also running water cooling. 3 blocks with a 360 rad in case and an 540 rad outside the case. the rad outside the case made a massive difference as its not pulling hot system air in to it.

My idle temps on the CPU are 31c but i dont have the best block

@ Disco_P, my rule with GPU's is always buy reference i find i always have very good luck clocking ref cards, but my 7970 windforce was horrible
 
Yeah this 780 is my first reference card and also my first golden chip.

Looking at your temps for CPU and GPU mine are very different. My GPU never exceeds 50C but CPU gets to 70C under extreme AVX load.
 
P4Clock said:
I am also running water cooling. 3 blocks with a 360 rad in case and an 540 rad outside the case. the rad outside the case made a massive difference as its not pulling hot system air in to it.

My idle temps on the CPU are 31c but i dont have the best block

@ Disco_P, my rule with GPU's is always buy reference i find i always have very good luck clocking ref cards, but my 7970 windforce was horrible
Click to expand...

I wish i was close to that, im pretty amazed due to the fact that im running 1 x 240mm and also a 120mm radiator and thats it :D :D :D but im not gaming as much just to be sure, i CANT wait to upgrade :D Enthoo Primo case + 1 x 420mm + 1 x 360mm + 2 x 240mm :D
 
ok so i found 2 clocks i am happy with but don't know if the second is worth the extra volts.

4.5Ghz @ 1.300
4.6Ghz @ 1.385

is the extra 0.1Ghz worth the extra 0.085V

When going with temps do i go with the package or the individual core temps.
temps are 4.6Ghz @ 1.385v
Idle - Min core0 27c / Max core3 32c / package 35c
Load - Min core0 57c / Max core2 67c / package 57c
 
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P4Clock said:
ok so i found 2 clocks i am happy with but don't know if the second is worth the extra volts.

4.5Ghz @ 1.300
4.6Ghz @ 1.385

is the extra 0.1Ghz worth the extra 0.085V

When going with temps do i go with the package or the individual core temps.
temps are 4.6Ghz @ 1.385v
Idle - Min core0 27c / Max core3 32c / package 35c
Load - Min core0 57c / Max core2 67c / package 57c
Click to expand...

0.1Ghz is not really worth it unless you are doing benchmarks etc, you wont notice it as well.

Thats a really big jump in volts as well, but dont be afraid to go higher as thats quite low :D
 
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