Question about overclocking (2500k)

[.enorC]

Hi guys

Something with my computer just cropped up, has to do with my overclock ):

I thought that my over clock has been running fine for the past 2 weeks +

However today after I shutdown my com to restart it, the first time i pressed the power button, it didn't turn on.

So I pressed it again and it finally came on, but it displayed a message saying something along the lines of

"The system has experienced boot failures because of overclocking or changes in voltage. Latest settings in BIOS my not coincide with current H/W states"

The computer booted as per normal.

I then restarted it to get into BIOS to find out that the settings have been reverted to normal, before i OCed.

Did something go wrong with my OC? Should I just set it back to the previous settings?

Thanks!

Edit: Does it have something to do with me plugging out my portable HDD when it was shutting down? Was shutting down the computer in the first place because the transfer window seemed to have hanged and plugging the portable HDD in or out doesn't seem to work.

-------------------------------------------------------------------------------------

Hi guys

Recently found some time and decided to OC my cpu, specs are the same as the ones on the right>

I followed this guide

The ULTIMATE Sandy Bridge OC Guide + P67A-UD7 Performance Review

However when I changed my multiplier to 40, which gives me 4.0Ghz, the CPU Vcore automatically changed to 1.345V but according to the guide

Stock-4GHz on Stock VID
4.0-4.3GHz 1.300v-1.325v
4.3-4.5GHz 1.325v-1.375v
4.5-4.8GHz 1.375v-1.450v

4.0Ghz Should be 1.300V, Which means mine is .045V too high.

What I did was changed the CPU Vcore from Auto to 1.325V.

My Currently running intel burn tests, managed to pass 'High' and undergoing 'Very High' with max temps of 77c.

So the question is should I set the Vcore back to auto? or should I keep it at 1.325V assuming it passes everything, or should I reduce it more to 1.300V? Reason being lesser power lesser heat, which is better for the CPU

I'm using the Cooler master Evo 212 CPU cooler.

Thanks in advance!

P.S. have 0 experience in Oc-ing, just followed the guide. Disabled/ Enable whatever was stated and I have option, left out those that I did not have.

Edit: Passed 'Maximum' with max temps of 78C

Edit 2: According to CPUID HWMonitor, my VID seems to fluctuate with a min being 0.986V and the max being 1.391V (testing on 'Maximum') is this normal that it fluctuates? I thought it was supposed to be fixed at 1.325V which I have set in the BIOS. This seems to be caused by SVID, should I disable it? Max I've seen on CPUz is infact 1.320V, which is which /:

Edit 3: Currently stable at 1.250V @ 4.0Ghz, Idles at 45C and 78C on 100% Load, should I try to lower the voltage even more for better temps?

 

[shiroyuki03]

iirc, not all chips produced are the same. some require higher power than others. but of course lower vcore but stable. lower vcore=lesser heat output by cpu=live longer

nv use auto voltage. may cause instability. may exceed the required amount and burn the chip. set the voltage thats stable for it.

but if you OC, make sure you got a good cpu cooler~

someone can correct me if im wrong

 

[.enorC]

iirc, not all chips produced are the same. some require higher power than others. but of course lower vcore but stable. lower vcore=lesser heat output by cpu=live longer

nv use auto voltage. may cause instability. may exceed the required amount and burn the chip. set the voltage thats stable for it.

but if you OC, make sure you got a good cpu cooler~

someone can correct me if im wrong

So ideally I want to maintain a stable environment at my clock speed with the least Vcore as possible for the longevity of the CPU, is that right?

 

[shiroyuki03]

So ideally I want to maintain a stable environment at my clock speed with the least Vcore as possible for the longevity of the CPU, is that right?

yeap~

 

[Wongpk]

enorC

change these settings in BIOS

cpu enhanced halt C1E --> disable

CPU EIST --> disable

 

[.enorC]

enorC

change these settings in BIOS

cpu enhanced halt C1E --> disable

CPU EIST --> disable

Hi Wongpk

I have disable CPU Eist and will now proceed to disable the CPU Enhanced one.

Running tests on maximum again @ 1.310V.

Tried on 1.315V Earlier but Max temp was still 78C, didn't seem to get lower

 

[Wongpk]

CPU temp at 100% load =?
CPU temp at no load =?

 

[.enorC]

CPU temp at 100% load =?
CPU temp at no load =?

According to HWMonitor,

100% load (when running intel burn test at maximum) is 78C

idle is about 48C

Thanks!

 

[FinalTidus]

According to HWMonitor,

100% load (when running intel burn test at maximum) is 78C

idle is about 48C

Thanks!

Thats very good temps.

My i5-2500k overclocked to 4.6ghz can hit 90C on IBT. But its still within the safe temp range.

 

[.enorC]

Thats very good temps.

My i5-2500k overclocked to 4.6ghz can hit 90C on IBT. But its still within the safe temp range.

How about the voltages? Especially the VID one under the core section because it says 1.391V Maxed which seems high. Also should I try to lower the Vcore more to 1.30V? Currently at 1.310V Thanks!

Maybe because mine is only 4.0Ghz that's why it's cooler

 

[FinalTidus]

How about the voltages? Especially the VID one under the core section because it says 1.391V Maxed which seems high. Also should I try to lower the Vcore more to 1.30V? Currently at 1.310V Thanks!

Maybe because mine is only 4.0Ghz that's why it's cooler

My voltage even lower. I set to 1.25v in the BIOS.

 

[Wongpk]

enorC wat stock CPU cooler you using har

 

[.enorC]

My voltage even lower. I set to 1.25v in the BIOS.

I'll try going lower then

enorC wat stock CPU cooler you using har

Hi wong,

I'm using the Cooler master Evo 212 CPU cooler.

 

[shiroyuki03]

enorC

change these settings in BIOS

cpu enhanced halt C1E --> disable

CPU EIST --> disable

by setting this, this is to remove power saving feature rite? just to confirm. and also making your cpu running at constant speed? it does not auto downclock when no load?

 

[PholkLorr]

by setting this, this is to remove power saving feature rite? just to confirm. and also making your cpu running at constant speed? it does not auto downclock when no load?

I enabled every single one or those. 4ghz is a cakewalk for our 2500k. I like my cpu to downclock and use less volts when it's not gaming . Use offset voltage instead of fixed one too

 

[shiroyuki03]

I enabled every single one or those. 4ghz is a cakewalk for our 2500k. I like my cpu to downclock and use less volts when it's not gaming . Use offset voltage instead of fixed one too

ohh same for me.. i also want to reduce the head wherever possible.. also reduce power consumption. but my clock speed is at 4.5Ghz

 

[keith]

hi,

can you share on your cooler ? i cant seems to find it in the thread. this is impt if you area doing 4.x range.

my Vcore is 1.335V, idle at 40C(same as mobo) full load at 60C. Running since 2500K's initial launch.

keith

Hi guys

Recently found some time and decided to OC my cpu, specs are the same as the ones on the right>

I followed this guide

The ULTIMATE Sandy Bridge OC Guide + P67A-UD7 Performance Review

However when I changed my multiplier to 40, which gives me 4.0Ghz, the CPU Vcore automatically changed to 1.345V but according to the guide

Stock-4GHz on Stock VID
4.0-4.3GHz 1.300v-1.325v
4.3-4.5GHz 1.325v-1.375v
4.5-4.8GHz 1.375v-1.450v

4.0Ghz Should be 1.300V, Which means mine is .045V too high.

What I did was changed the CPU Vcore from Auto to 1.325V.

My Currently running intel burn tests, managed to pass 'High' and undergoing 'Very High' with max temps of 77c.

So the question is should I set the Vcore back to auto? or should I keep it at 1.325V assuming it passes everything, or should I reduce it more to 1.300V? Reason being lesser power lesser heat, which is better for the CPU

Thanks in advance!

P.S. have 0 experience in Oc-ing, just followed the guide. Disabled/ Enable whatever was stated and I have option, left out those that I did not have.

Edit: Passed 'Maximum' with max temps of 78C

Edit 2: According to CPUID HWMonitor, my VID seems to fluctuate with a min being 0.986V and the max being 1.391V (testing on 'Maximum') is this normal that it fluctuates? I thought it was supposed to be fixed at 1.325V which I have set in the BIOS. This seems to be caused by SVID, should I disable it? Max I've seen on CPUz is infact 1.320V, which is which /:

 

[.enorC]

I enabled every single one or those. 4ghz is a cakewalk for our 2500k. I like my cpu to downclock and use less volts when it's not gaming . Use offset voltage instead of fixed one too

Which one do I enable to have the powersaving mode again? E.g downclock when not on load/ not so much processing power is required.

hi,

can you share on your cooler ? i cant seems to find it in the thread. this is impt if you area doing 4.x range.

my Vcore is 1.335V, idle at 40C(same as mobo) full load at 60C. Running since 2500K's initial launch.

keith

Hi

I'm using the Cooler master Evo 212 CPU cooler.

I think my Vcore is currently 1.250V or somewhere around there. But no idea why my idles are much higher than yours

 

[keith]

Hi

I'm using the Cooler master Evo 212 CPU cooler.

I think my Vcore is currently 1.250V or somewhere around there. But no idea why my idles are much higher than yours

its the cooler. I also realized as the years goes by the the temps will gradually increase. probably due to increased dust / oxidation on the cooler and CPU thermal efficiency degrading.

 

[PholkLorr]

Which one do I enable to have the powersaving mode again? E.g downclock when not on load/ not so much processing power is required.




cpu enhanced halt C1E --> enable

CPU EIST --> enable