Intel 3570k overclocking results

mjallan123 · 30 Apr 2013 at 00:42

I decided to do some overclocking with my 3570k after reading some of the experiences of people with the same chip.

The ASUS auto overclock used 1.325v for a 4.6Ghz overclock which I thought was quite a lot.

At first I wanted to see how low a voltage I could get away with at 4.5Ghz and the results surprised me. All temperature results are after 10 runs of standard Intel Burn Test.

I am using a custom water cooling loop with XSPC raystom CPU block.

Lowest attainable vCORE: CORE 1, CORE 2, CORE 3, CORE 4 temps

3.8Ghz (Stock speed. Stock voltage. Everything set to auto.)

AUTO VOLTAGE: 45c, 54c, 48c, 47c

4.5Ghz

1.16v: 50c, 60c, 54c, 53c

4.6Ghz

1.19v: 53c, 62c, 58c, 55c - SUCCESS!

4.7Ghz

1.23v: 57c, 65c, 62c, 59c - SUCCESS!

4.8Ghz

1.30v: 62c, 73c, 71c, 67c - SUCCESS!

4.9Ghz

1.36v: 69c, 81c, 78c, 75c - SUCCESS! (But very hot!!)

5.0Ghz (Disabled speedstep. Load-line set to extreme. PLL overvoltage enabled)

1.40v: 78c, 92c, 91c, 87c - SUCCESS (But god dammit that is toasty!)

Conclusion

So it looks like somewhere between 4.5 - 4.7Ghz is the sweet spot. Going from 3.8Ghz to 4.7Ghz means about a 10c average increase in temps across the cores. Going from 4.7Ghz to 5Ghz means an average increase of almost 30c across the cores!!

I am so tempted to de-lid my IHS and get some proper thermal paste on the die. I heard it drops temps by as much as 10-15c but I am skeptical.

Hope this helps some people with their expectations when trying to overclock their 3570k.

Thanks for reading

Sycho · 30 Apr 2013 at 00:57

You may aswell go with 4.7ghz judging from those temps as even then they are still perfectly fine and IBT always stresses cpu far more than all games bar a few which even then it's more stressful still.

Rofflay · 30 Apr 2013 at 10:31

Yea very low vcore and temps.Ive seen a few around doing 4800mhz 1.370-1.380 and thats exactly the range mine fell into except my temps go up to 95c under IBT and 80c roughly under Prime95.

Tried 5ghz? I instant bsod going into windows not even 1.4v will get me in.4800mhz on the other hand was doable as long as i eliminated vdroop completely.On asus this is ultra high 75% which when set at 1.360 gives me always 1.360 voltage and at 1.368 under load.

There is no voltage drops or going to different numbers which i honestly think helped a lot as i was going down to 1.348v at times and crashing after 10 mins of gaming at 4800mhz.After that LLC adjustment i had no crashes in 2 days and now run 4800/2400 memory.

I think you can better than that though.

~>Dg<~ · 30 Apr 2013 at 10:40

if them temps are true then nice chip you have :cool:

mjallan123 · 30 Apr 2013 at 13:22

~>Dg<~ said:
if them temps are true then nice chip you have

I'll post some screen shots later on

Yeah I was able to hit 5Ghz pretty easy. I actually tried doing that before doing this testing. I didn't record the temperatures but I remember I was at 1.4V with overvoltage enabled and speedstep disabled. I ran prime95 for 5 minutes and it seemed pretty stable.

I will for sure try 5Ghz again during this testing with IBT.

stevie_vee · 30 Apr 2013 at 16:27

I'm running stock vcore @ 4.2. Do you recommend I push a little more with my air cooled system?

setter · 30 Apr 2013 at 17:55

stevie_vee said:
I'm running stock vcore @ 4.2. Do you recommend I push a little more with my air cooled system?

By stock, have you manually set the voltage or left it on auto? If your cooling is sufficient, then id say bump it up a bit. Just keep an eye on load temps when stress testing.

mjallan123 · 30 Apr 2013 at 19:46

stevie_vee said:
I'm running stock vcore @ 4.2. Do you recommend I push a little more with my air cooled system?

You should set your VCORE manually. I just don't trust the auto setting, it seems to be way too generous with the volts.

It also depends on your air cooler, is it a good one?

Try my settings for 4.5Ghz and see how you get on.

mjallan123 · 30 Apr 2013 at 23:17

Updated the OP. 5Ghz reached but sky high temps!

wazza300 · 30 Apr 2013 at 23:19

stay below 80c imo,the temps/volts needed simply isn't worth it

stevie_vee · 1 May 2013 at 07:48

setter said:
By stock, have you manually set the voltage or left it on auto? If your cooling is sufficient, then id say bump it up a bit. Just keep an eye on load temps when stress testing.

Vcore is manually set @ 1.225 stock @ 4.2. I use one of these to cool the cpu......http://www.overclockers.co.uk/showproduct.php?prodid=HS-084-AK&groupid=701&catid=2330

I notice that at 4.5 you're only using 1.16v, how is this? Is 1.225 too much for my 4.2 oc or are the settings really system dependent.

Cheers.

eddyr · 1 May 2013 at 08:30

Chip, board, bios and cooling dependent. They all come into play.

Have a play and see if you can run 4.5 at lower voltage in increments.

mjallan123 · 1 May 2013 at 09:34

stevie_vee said:
Vcore is manually set @ 1.225 stock @ 4.2. I use one of these to cool the cpu......http://www.overclockers.co.uk/showproduct.php?prodid=HS-084-AK&groupid=701&catid=2330

I notice that at 4.5 you're only using 1.16v, how is this? Is 1.225 too much for my 4.2 oc or are the settings really system dependent.

Cheers.

Yeah depends on a combination of factors I would say. I'm using an Asus Maximus V Gene which I got because I heard it was pretty good for overclocking. Corsair AX850 PSU which is very stable.

I'd say your voltage at 4.2Ghz is a bit high though. Just go into the bios and reduce it in 0.01v increments and see how low you can go.

RogerMesenseless · 1 May 2013 at 15:01

wazza300 said:
stay below 80c imo,the temps/volts needed simply isn't worth it

+1.

I'd keep it at 4.7.
The additional voltage/temps are not worth it for 100Mhz.

opethdisciple · 1 May 2013 at 15:11

Nice little summary, thanks for the results.

I havent attempted to overclock my cpu yet. I should, and would be happy with something conservative like 4.6Ghz. But now that the summer is more or less here, I think I wull wait untill around September.

Stock is fast enough anyway.

What is the max 'safe' voltage anyway for these chips? What is max 'safe' temps?

Looking on the Intel website it mentions Tcase = 67.4°C. Does that mean max safe temp is 67.4°C as measured by the bios?

setter · 1 May 2013 at 22:17

stevie_vee said:
Vcore is manually set @ 1.225 stock @ 4.2. I use one of these to cool the cpu......http://www.overclockers.co.uk/showproduct.php?prodid=HS-084-AK&groupid=701&catid=2330

I notice that at 4.5 you're only using 1.16v, how is this? Is 1.225 too much for my 4.2 oc or are the settings really system dependent.

Cheers.

No such luck stevie, unfortunately my chip needs 1.3200 vcore to be stable at 4.5ghz, temps arent too bad though at 75c max in ibt. Cooler is an alpenfohn k2 with dual akasa viper fans.

Kaapstad · 1 May 2013 at 22:53

4.9Ghz

1.36v: 69c, 81c, 78c, 75c - SUCCESS! (But very hot!!)

5.0Ghz (Disabled speedstep. Load-line set to extreme. PLL overvoltage enabled)

1.40v: 78c, 92c, 91c, 87c - SUCCESS (But god dammit that is toasty!)

Way too much LLC, probably explains the big jump in temps.

stevie_vee · 2 May 2013 at 08:16

Ok, i've just started prime95 running with the above clocks on my system. Cores 1,2 and 4 are still running while core 3 stopped after just 2 mins. Message in box was.....FATAL ERROR Hardware failure detcted. This concerns me somewhat. I set prime95 to use 90% of the 8gig of samsung green ram i installed yesterday. Dont understand why just one core has stopped working. Any ideas??

Thanks.

Rofflay · 2 May 2013 at 08:30

Kaapstad said:
Way too much LLC, probably explains the big jump in temps.

Yea not sure why LLC extreme? I use 75% ultra high on Asus and even then there is actually zero vdroop and actual vrise occurs.I set 1.360v manually in bios i get 1.360v all the time unless i run P95 or IBT which takes me to 1.368v.

Higher temps but zero voltage changing under load or idle really.It will sit at 1.368v gaming all day long and not a single volt higher or lower.

I would have thought that would be better than slight vdroop as the cpu is getting a more stable current perhaps? On normal LLC volts would go as low as 1.338 which is a pretty large droop in my opinion.

Smoogels · 2 May 2013 at 08:33

stevie_vee said:
Ok, i've just started prime95 running with the above clocks on my system. Cores 1,2 and 4 are still running while core 3 stopped after just 2 mins. Message in box was.....FATAL ERROR Hardware failure detcted. This concerns me somewhat. I set prime95 to use 90% of the 8gig of samsung green ram i installed yesterday. Dont understand why just one core has stopped working. Any ideas??

Thanks.

When a core stops it's likely it is not getting enough voltage to operate so you may need to increase it a touch. Every processor overclocks differently so it's very possible that yours may require a little more voltage than others