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i7 3770k running hot when overclocked

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March 12, 2013 10:41:00 AM

I've just recently built a new gaming rig of the following specs:

Cpu: Intel i7 3770k
Mobo: Asrock extreme4 z77
Cpu cooler: Corsair h60 2013 edition
Gpu: zotac 660ti amp edition
SSD/HDD: Corsair force 3 240gb/ 1tb seagate @ 7200rpm

I've had the system for a few days and after wearing the parts in i've decided to overclock the cpu. I overclocked to 4.2ghz @ 1.2v (I'm aware this is fairly high) and left prime95 on for 15 mins came back and my cpu was running at 80C so I immediately stopped the stress test and have been at idle for about 5 mins and my hottest core is at 31c and lowest is at 22c.


At stock speed when running prime95 the max temperatures I would get where 40c


One thing I would like to point out is the fan I am using too cool the radiator is a bit fenix spectre but it is plugged into the motherboards chasis 3pin port could this be a reason why my temperatures are so high when overclocked I know ivy bridge runs hot but its only a 300mhz increase and its at double the temps.
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March 12, 2013 10:48:21 AM

Reseat the pump or whatever on the cpu and replace the thermal paste.

It seems that 80c is actually a good temperature for it. This guy have it for 80x for 5 years and it "never missed a beat"
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a c 159 à CPUs
March 12, 2013 10:48:57 AM

300MHz? the 3770k is clocked by default at 3.5GHz and 3.9GHz on turbo, in that settings you are using 700MHz more that stock speed on your CPU at 1.2V that's high. Try a lower frequency and check the energy options in BIOS.
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March 12, 2013 10:55:12 AM

Just lowered the cpu voltage to 1.135 and after 15 mins the temps where 68c. Which is better but if i left it for an hour im sure it would rise to even hotter temps. Just confusing as on the back of the box for the h60 states for a i7 3770k @ 4.6ghz max temps where 61c and i can't see that being possible at all.
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March 12, 2013 10:58:35 AM

That is not overly hot for Ivy Bridge, don't forget that is going to be at 100% usage, which won't happen often. You could check whether your cooler is properly seated, but on a H60, those seem like quite plausible temps. As you can see, the TJMax is listed as 105C, which I believe is where the chip will automatically begin throttling (I think so, as opposed to damaging the chip), so you technically have about 25C of space, I would not OC any further on that cooler, perhaps someone more familiar with the i7-3770k can testify as to whether your current temps are okay. Also, not every chip is a great OC'er.
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a c 159 à CPUs
March 12, 2013 11:00:35 AM

That specs that says the H60 are in optimal conditions, without keep in mind the ambient temps, as soo as you install that in your home, that 61°C aren't valid.

Keep in mind too that in any moment of you day your CPU will be stressed as prim95 does, so, those 68°C are in prim95 only, for real gaming use the temps would be much better.
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March 12, 2013 11:03:49 AM

chugot9218 said:
That is not overly hot for Ivy Bridge, don't forget that is going to be at 100% usage, which won't happen often. You could check whether your cooler is properly seated, but on a H60, those seem like quite plausible temps. As you can see, the TJMax is listed as 105C, which I believe is where the chip will automatically begin throttling (I think so, as opposed to damaging the chip), so you technically have about 25C of space, I would not OC any further on that cooler, perhaps someone more familiar with the i7-3770k can testify as to whether your current temps are okay. Also, not every chip is a great OC'er.


Yeah I'm aware that this chip could be one not so great for overclocking. With lower voltages I can see a much better temp and on prime 95 I am running the maximum heat stress test so I think I'm gonna try seeing what temps I get in games as this is what my machine will be mainly used for and see if i can get this chip to 4.4ghz.
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March 12, 2013 11:04:14 AM

My 3770k is overclocked (by CyberPower, not by me) at 4.2Ghz. Running Crysis 3 on ultra with 2X AA, it doesn’t go above 60C. Though I have not benchmarked it, I’m quite sure that 4.2Ghz is a safe OC for the 3770k.


--------------
i7 3770K OC @ 4.2Ghz / ASRock Extreme 4 Z77 / evga FTW 670 2X-SLI / 32 GB Corsair Vengeance 1600 / 128 GB OCZ Vertex 4 / 2 TB WD Caviar Black / 2 TB Seagate Barracuda / Asetek 510LC Liquid Cooling System / LG 14X Blu-ray R/W / Corsair 1000w PS / AzzA Genesis 9000 full tower / Windows 7 Professional 64 / 144hz 1ms 24-inch Asus monitor
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March 12, 2013 11:05:38 AM

The H60 isn't the best choice for overclocking, more for running normal speeds quietly.
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March 12, 2013 11:15:13 AM

Just played 2 games of bf3 on the new endgame maps in 64 man servers temps didn't go over 55c :) 
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March 12, 2013 11:21:46 AM

My 3770k is running at 4.5ghz under a modded Zalman 350 kit (arctic silver 5 paste and high pressure Corsair fans) and I hit 76C at 1.15v. You probably just need a better cooling (or more powerful fans). Those chips can run 4.2ghz without a voltage bump (or a very small one). Yeah 80C is hot, but if its not 24/7 it should be fine. On another note, with a CoolerMaster 212EVO, with dual fans, I was running 4.2 at stock volts and temps were very good too (75C).
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a b à CPUs
March 12, 2013 11:22:01 AM

could just be a bad batch of cpus? but just saw its only an h60. an h80+ is ideal or even a 240mm rad
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March 12, 2013 11:29:34 AM

I would say you need to reseat the H60. I had this issue where the cooler was being wedged up some caps which meant it only contacted with about 1/3 of the IHS. I couldn't tell just by looking at it but after reseating it, it made full contact and temps dropped quite a bit.
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March 12, 2013 11:51:47 AM

Well it runs at 65c @ 4.2ghz after lowering the voltage i realizing that because of the size of the rad the only place i could fit it in my case (bit fenix merc alpha) was the bottom and I completely forgot about my underfloor heating so i moved my case up to my desk and I'm seeing much better temps. Did try to go for 4.4ghz but for now I'm going to leave it at 4.2 as the amout of volts i'd have to put in to get 4.4 was nearly 0.1v more.
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March 12, 2013 12:07:59 PM

its probably an installation problem!remove the h60 and put a new thermal paste and install it again!also go check the cpu temperatures with other programs so you can get a full view!
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a c 159 à CPUs
March 12, 2013 12:12:52 PM

newbie1337 said:
Well it runs at 65c @ 4.2ghz after lowering the voltage i realizing that because of the size of the rad the only place i could fit it in my case (bit fenix merc alpha) was the bottom and I completely forgot about my underfloor heating so i moved my case up to my desk and I'm seeing much better temps. Did try to go for 4.4ghz but for now I'm going to leave it at 4.2 as the amout of volts i'd have to put in to get 4.4 was nearly 0.1v more.


4.2GHz is good, above that you will need a better cooler than that H60, even with a 2013 edition isn't a secret that at this time exist much better coolers in that range.

Keep in mind one thing, the stock thermal paste of that cooler isn't something very good and can be one of the "problems" of you high temps. In my little experience that CPU can run a little more cooler using a better thermal paste and using excellent overclocking settings in your BIOS as well as keeping active the energy saver options.

Cheers.
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March 12, 2013 12:16:12 PM

just for comparison i have a 3770k at 4.4 with a hyper 212 evo at 1.16-1.17 volts and it doesnt go above 72 c in during a 25 min prime test.
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March 14, 2013 1:40:27 PM

Well i've sorted the temps out now i bought 2 corsair sp120's in a push-pull config and applied arctic silver 5 thermal paste. But i can't seem to get a stable overclock running 4.2ghz @ 1.28v after 2 mins on prime95 temps of 65c one of the threads will crash due to"rounding 0.5 expected 0.4". Is there anything that could be causing this cause I'm pretty sure its not the voltages.
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March 16, 2013 6:22:08 AM

Good call on the fans. You bought the high pressure ones right? I have those on my Zalman 320 and they did reduce temps. As not all chips run the same, your voltage will vary. I suppose the voltage could be drooping too much on that load, but I am stable at 4.5ghz at your same voltage on a Extreme 4M (right now I am running 4.2ghz at stock voltage though). Did you disable the onboard vga? That may help if you are not using it.
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