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Very hot 2600K

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  • Heatsinks
  • Overclocking
  • Product
Last response: in Overclocking
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September 28, 2011 8:29:32 PM

Hi everyone,

I just finished building a new PC with an i7 2600K, and two GTX 560's in SLI, and everything is stock cooled. The problem is that my house's normal room temperature during the day is around 75-78F, making it a very hot machine.

Running the Prime95 small FFT test, the cores peaks out at 94C, 97C, 98C, and 96C at 100% load, which is something I look to avoid since I got the machine for computing intensive purposes.

The machine uses all stock cooling, and I have this case which has a bunch of room for extra fans: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Should I replace the CPU cooler with an aftermarket solution or just add more case fans for better flow? (or both?)

Thank you in advance!
:) 

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a b K Overclocking
September 28, 2011 9:03:14 PM

75-78F is not hot, that's normal, my apt room temp is sometimes 85-90F(texas summer is a killer) and the stock cooler still only got to 70C before I got another cooler.

Check if it's mounted properly, or check if your mobo didn't auto OC you.
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a b K Overclocking
September 28, 2011 9:08:13 PM

YES, YES, replace that intel HSF!!
My ambient temp during the summer is 76->78 F sometimes upto 80F.

That said, it still should not reach that temp, 70-> 80 C maybe. The first think to check (most commopn problem) is that the puch pins did not lock down properly. You can check be feel, but the Only way to really verify is to look at the white nubs on the back side.

2nd most common problem is the application of the HSF thermal paste. Most seem to recommend artic silver 5. A pea size amount in the center spead evenly seems to work the best. I use a latex glove to spread.

Back to my YES. The Intel HSF is of poor design and at the bottom of the Heap in terms of performance. Yes it does work, But remember the cooler the better!.
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September 28, 2011 9:15:38 PM

That seems high the stock cooler that comes with Sandybridges are pretty solid are all the corners of the heatsink seated properly? Also how are your gpu temps are they running hot?Adding a door intake and a top exhaust fan may help a bit for air circulation.
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September 28, 2011 9:31:21 PM

Thanks for the replies. I double-checked the mounting of the cooler, and it looks fine. I turned off any fan-control in the BIOS, so everything is running at 100%, the CPU is running at stock speeds as well.

I haven't done any GPU stress testing yet, but idle, they don't seem to be generating much heat. I checked my i7 930 box as well, which also runs a bit hot with stock cooling, but not as much as the 2600K.

Do you guys think that this would do the trick cooling it down during the hot summer? http://www.amazon.com/Corsair-Cooling-Hydro-High-Perfor... Or should I go a step or two higher?

P.S. Measured temp outside the case is 82.2F, 77F is at the A/C.
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a b K Overclocking
September 28, 2011 9:43:54 PM

I keep a temp monitor in my cases, both normally hit 82->84 F inside the case, but my cpu is normally in the uper 30's @ idle and no higher than 60 C under prime 95 (Have the Zalman 9900 Max on I5-2500 OC @ 4.2 and Zalman 9700LED on I5-750 @ 3.2.
Paid more for my 9900max, but like it better than H60.

The Hyper 212 is cheaper and does a good job up to 4.6 GHz on I5-2500k (i7-2600k runs hotter ofcoarse.

The H50/H60 is no better than the upper end Air HSF, without the mess.
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September 28, 2011 9:54:21 PM

Thanks a bunch! I'm running over to my local retailer since they have them in stock, and I rather not wait for 2 days :)  I'll update the thread with new numbers tonight if anyone is interested.
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September 29, 2011 1:06:01 AM

So I ended up getting the H60 anyway since they didn't have the 212 in stock when I got there. Oh well. The max temperatures under 100% load per core are now 68C, 70C, 72C, 70C. Big improvement so far, added a couple of 120MM fans to the case as well, thanks everyone for your help! :) 
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October 5, 2011 8:43:56 PM

In your original post you stated temps in Fahrenheit which are pretty cool. And now that you got a new cooler you state your temps in Celsius, which actually is pretty darn hot. Which is it?
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a b K Overclocking
October 5, 2011 8:53:27 PM

He stated room temp in F, cpu temps were C.
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October 11, 2011 11:58:33 PM

Best answer selected by thr3ddy.
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October 12, 2011 12:44:47 AM

Stick with the stock thermal...it's made for a reason. Intel doesn't invest millions of dollars developing stuff to fail. After cleaning the crap they put on there to start off with off the stock cooler, I had bought some thermal paste directly from intel and used that. My temps are 20-23*C idle in a 70*F room @ 4.5ghz and prime 95 @4.5ghz for 30 min, it didn't go higher than 62*C from 0-30min. i5 2500k....
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a b K Overclocking
October 12, 2011 3:32:13 AM

cjtex said:
Stick with the stock thermal...it's made for a reason. Intel doesn't invest millions of dollars developing stuff to fail. After cleaning the crap they put on there to start off with off the stock cooler, I had bought some thermal paste directly from intel and used that. My temps are 20-23*C idle in a 70*F room @ 4.5ghz and prime 95 @4.5ghz for 30 min, it didn't go higher than 62*C from 0-30min. i5 2500k....


I call shenanigans, 20C=68F, your cpu can't be below room temp unless you're using ln2. Although it's most likely a misconfigured temp program.
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October 13, 2011 4:01:28 AM

k1114 said:
I call shenanigans, 20C=68F, your cpu can't be below room temp unless you're using ln2. Although it's most likely a misconfigured temp program.

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Shenanigans huh? 2 different programs reading same temps.
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a b K Overclocking
October 13, 2011 5:07:37 PM

I'm not saying 21C is impossible, I'm saying cpu temps below room temp is impossible. Especially how is a source of heat lower temp than objects around it or the air it's in, think about it. Try using hwmonitor, realtemp and coretemp. Cpu temp below hdd and mobo is also weird on a air cooler.
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