Advice on overclocking 3570k?

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Jordannn15

Jordannn15

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Jun 2, 2012
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I have been looking at overclocking guides everywhere and they are all a bit different and I'm new to this so I need some help.

I can get my cpu up to 4.4Ghz @ stock voltage but when I stress test it with prime95 and monitor temps with hwmonitor the package temp gets to around 80C in about 15-20 minutes of doing the blend test with 4 workers (1 for each core/thread). Is this normal?

Then I left it at 4.4 and set the vcore to 1.110 and stress tested it the same way but after the same amount of time or maybe a bit longer I got a BSOD so I raised the vcore again to 1.120 and it got a BSOD again. What am I doing wrong and can someone give me some advice on settings for this chip and board? Also I know that every cpu is different so the same settings may not be exactly right for my cpu.

My rig:

i5-3570k
Gtx 770
asrock z77 extreme4
Ripjaws x series 8gb 1600mhz
western digital caviar black 500gb
samsung 840 evo 120gb
CM hyper 212 evo
 
Solution
bicycle_repair_man


If that temperature can be maintained for several hours, then you have nothing to worry about. Ivy Bridge and Haswell processors are well known for generating more heat than Sandy Bridge.
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4745454b

4745454b

Titan
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My guess is not enough Vcore. You said stock at the start and looking online that's somewhere around 1.2x. Dropping the Vcore down to lower the 80C is a good idea. But 1.12 is to much of a drop, and the CPU can't handle that little voltage. Try a 1.2Vcore and see?
 
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bicycle_repair_man

bicycle_repair_man

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You need to increase the voltage; 1.23V will be a good starting point. I'd estimate you'd need around 1.25V, but like you said, every CPU will be different.

Instead of the blend test, use Small FFTs as this will stress the CPU cores to their maximum. 80C is also rather high, you should aim for 70-75C maximum and let the test run for several hours so you know that temperature will be maintained.
 
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M

Matt Bull

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Jan 15, 2014
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1.2 volts will be fine. If it is stable drop to 1.18 volts see how you go.
Also its not stock voltage if u oc to 4.4 ghz and leave on auto its prob setting voltage at 1.26 volts or so on auto, hence y gets hot
 
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Jordannn15

Jordannn15

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Okay I will try starting with 4.4 at 1.2 volts and test it with the FFT's when I get home today and will report back. Also my bios only lets me change the vcore in increments of like 0.005 so i can't do like 1.208 or specific numbers like that it would have to be 1.205 or 1.210.
 
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Jordannn15

Jordannn15

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I put it at 4.4 at 1.2v and i ran small FFT's and it gave me a BSOD after only a minute. Then I tried 4.4 at 1.21v and it gave a BSOD after 5 minutes. Then I bumped it up to 4.4 at 1.23v and ran it for 10 minutes but I'm already up to 80C. After about 30 minutes my max temp was 84C and no errors either. Should I add more voltage? Will this lower my temps or what? If so how much should I raise it?
 
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bicycle_repair_man

bicycle_repair_man

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Don't increase the voltage, all that will do is increase the temperature and 80C is already too high. Turn the overclock down to 4.2Ghz and 1.22V and see what temperature you get. Ideally, you want to keep it below 75C.

I'd also check that your cooler and thermal paste are correctly applied. Ivy Bridge is known is get hot easily, but 80C still seems high with a 212 Evo.
 
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Jordannn15

Jordannn15

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Okay I will try that first and see what temps I get first before I check the cooler. I did have a bit of trouble putting the evo on because its the first time I have used an aftermarket heatsink. Do you use the dot method or line method for thermal paste? Or I guess I should say which way is better/correct?
 
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Jordannn15

Jordannn15

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I put it down to 4.2ghz and set the vcore at 1.2v because I can't do specific numbers with this board like I said I could either do 1.200 or 1.205 so I did 1.200 and in the first 10 minutes or so it got up to 77C?? Should I just check the cooler and see if that's the problem or?
 
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Jordannn15

Jordannn15

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^I'm going to leave that because I'm stupid and I think it's funny. I put it at 1.22v and 4.2ghz but as you can imagine my voltage is higher so my temps are already at 77C almost a minute after I started it.
 
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Jordannn15

Jordannn15

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Yes, I don't understand the others and I've seen some people say they don't make that much of a difference so they don't bother with it.
 
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Jordannn15

Jordannn15

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I cleaned off the thermal paste from the heatsink and cpu and completely took the heatsink off and put it back on better but I am getting the same temps. 4.4 at 1.22v getting 80C after 15-20 minutes of small fft's. Think it's just not a very good cpu or something else?
 
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Jordannn15

Jordannn15

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I tried lowering it to 4.2 at 1.175v and after 10 minutes it got up to 76C. I will lower the voltage and see how low I can go. 4.2 at 1.160v got up to 74C after 10 minutes. 4.2 at 1.145v got up to 73C after 10 minutes.
 
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Jordannn15

Jordannn15

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But am I getting a significant difference in fps going from 3.8ghz turbo boost to lets say when I get a new cpu and I do overclock it could get to 4.4ghz? If not I am just going to return my 3570k and go with a 3570 and not overclock obviously except for the turbo boost.
 
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