4770k overclock help

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imakeitrayne

Honorable
Dec 13, 2013
14
0
10,510
Hi,

So I decided to try a go at overclocking since my 212 evo came in. Anyways at stock speeds my temps on full load during prime95's blend test were around 60, which is a whole 20 less than the 80 with the stock cooler.

Anyways, I tried overclocking and I currently have my cpu set to 4.2gHz at 1.15V. With Intel Burn Test with stress level high, my cpu temps fluctuated from ~65 to ~90 through all 10 runs. With prime95 my temps were around ~70. Is this normal?
 
Solution
photonboy
Have you tried running at 4.2GHz by only changing the MULTIPLIER value for each core, and leaving everything else alone?

I get 4.2GHz on my Asus motherboard for my i7-3770K.

1) Set back to defaults (XMP)
2) Change each core to "42" (or try 41 first) and SAVE settings
3) Boot back into the BIOS and confirm the CPU is set to 4.2GHz Turbo, and your DDR3 memory frequency is correct.

4) run MEMTEST www.memtest.org for one full pass (roughly 30min for 8GB)

I use Prime95 myself, but since my overclock isn't aggressive anyway I'm not concerned with how "accurate" this is. If I get no errors in 10 minutes I'm happy, plus it's really a worst-case scenario anyway.

AIDA64 Extreme:
1. Download and install (30-day free usage)
2. Tools-> "System...
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sweenytodd

sweenytodd

Honorable
Aug 13, 2013
898
1
11,660
It is not normal. Intel Burn Test and Prime95 are not validated for stressing Haswell CPUs. The reason why IBT reaches 90+C because its overvolting the CPU even if you put it manual voltage. Stop using those tools. Use validated stress programs like AIDA64 and Intel Extreme Tuning Utility.
 
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imakeitrayne

Honorable
Dec 13, 2013
14
0
10,510


Ok. I downloaded aida64, what is the recommended way to test stability with this?
 
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photonboy

photonboy

Titan
Jun 20, 2006
21,567
13
85,015
Have you tried running at 4.2GHz by only changing the MULTIPLIER value for each core, and leaving everything else alone?

I get 4.2GHz on my Asus motherboard for my i7-3770K.

1) Set back to defaults (XMP)
2) Change each core to "42" (or try 41 first) and SAVE settings
3) Boot back into the BIOS and confirm the CPU is set to 4.2GHz Turbo, and your DDR3 memory frequency is correct.

4) run MEMTEST www.memtest.org for one full pass (roughly 30min for 8GB)

I use Prime95 myself, but since my overclock isn't aggressive anyway I'm not concerned with how "accurate" this is. If I get no errors in 10 minutes I'm happy, plus it's really a worst-case scenario anyway.

AIDA64 Extreme:
1. Download and install (30-day free usage)
2. Tools-> "System Stability Test"

Uncheck anything you don't want tested and run it, while monitoring the temperature. The CPU cores are listed by color. I found this confusing as it said Core1/2, Core 1/3, Core 1/4 (Huh?). I guess just look at whichever one is worst.

I also recommend running a different program as well to confirm the CPU temperatures such as Realtemp: http://www.techpowerup.com/realtemp/

Each core should be roughly the same temperature under a stress test with all cores tested. If there's a large gap there may be an issue with the thermal paste on the motherboard socket or inside the CPU itself.

 
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Solution
I

imakeitrayne

Honorable
Dec 13, 2013
14
0
10,510


So I set my multiplier to 42 on all cores...so I am effectively at 4.2 gHz. The only other thing I actually changed was the vcore which I currently have at 1.13, everything else is on auto/default settings. You think if I pass prime95 after say 10-12 hours I am good to go? Because I have already tried vcore at 1.1, 1.11, but 1.13 seems to do me good so far.
 
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