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Old 06-05-2012, 02:08 PM   #1
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Default i7-3770 (non-k) idle temps?

I've just finished a new build with the 3770 (not k) on an ASUS Sabertooth Z77. No software at all is installed, no OC, and I'm using the stock cooler for now. I'm looking at BIOS and it has been showing temps stabilizing at about 39C (motherboard is at 30C, room temp is about 22C).

I've seen a lot written about the k model running hot when overclocked, but nothing about what the idle temp should be on the plain 3770. The 39C that I'm seeing just seems to be quite high.

Any feedback would be useful. Thanks.
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Old 06-05-2012, 02:24 PM   #2
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With the stock cooler I would expect temperatures in the mid to high 30s (right about what you are experiencing). Changing over to a 3rd party cooler like the Cooler Master Hyper 212 + would see your temperatures around 32 to 34 with good air flow in the case.
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Old 06-05-2012, 02:34 PM   #3
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40C idle is normal for my 3570K and 80C at 100% linpack load.

And no, its not high. Your fan also run at reduced speed at those temps.
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You're just bitter because in 2016 you'll be sitting on an expensive and slow 4 core Intel CPU, while others will be using a cheaper and faster 8 core AMD CPU.
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Old 06-06-2012, 12:59 AM   #4
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Thanks guys. After running for several hours today (installing software), it dropped to about 35C at idle. I've got the CM 212 EVO on the way.
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Old 06-06-2012, 08:18 AM   #5
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Idle temps really don't matter, and are amazingly inaccurate anyway. Half the time, one core on mine claims to be below ambient. The temperature measurement really only matters as it nears Tjmax, and the farther you get from that,t he less accurate they are.
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Old 06-09-2012, 05:47 PM   #6
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Ok, I ran Prime95 for 2.5 hours today. I'm still on the stock cooler and the temps hit 80C on some of the tests, but mostly it was around 68C and 71C. I guess that is acceptable. I won't be doing any overclocking, so I figure that I stressed it about as much as it ever will be.

I'll probably install the 212 EVO tomorrow and see what temps I get.

Thanks again.
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Old 06-20-2012, 01:43 PM   #7
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Ok, I’ve had my i7 3770 (non k) rig for over a month now, using a closed loop Asetek cooler and my idles stay right around 30C. Sometimes a little lower (26-28) and sometimes a little higher (31-33). But 30C seems to be about the mean.

After a solid hour of playing BF3, CoreTemp showed temps of 45/45/43/48. Not bad at all. Ambient temp is nice and comfortable in my office and I know that helps, but the i7 3770 really isn’t horrible for super hot temps like everyone says. And its fast as hell. Yes it is hotter than a non k SB (I just got rid of my i7 2600 rig about two months ago- and swapped most of the parts so I know first hand), and IB is probably on the average of +/- 5C warmer at any given time than SB doing the exact same task.

Overclocking is another matter entirely, and I hope you’re not messing with the base clock trying to overclock the non k 3770. It can be done - but I wouldn't mess with it. Get the 2600k/2700k if you want to OC. I have no desire to OC myself, and am only a casual gamer playing a game of BF3 now and then. I use my rig primarily for work.
But it sure is nice to be able to take a break from work and run BF3 at 60+ FPS without breaking a sweat (my overclocked 6950 2GB doesn't hurt).

I would bet that 39C is normal for a i7 3770 using a stock (read:crappy) Intel heatsink. Get a Coolermaster 212 EVO like the others suggested. And remember that Intel is saying the max temp for IB is well over 100C. So 50-60C isn't nothing for it. So they say anyway. I wouldn't worry about it at all until I started hitting high 80s.

Last edited by hapkiman; 06-20-2012 at 01:46 PM.
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Old 06-22-2012, 05:04 PM   #8
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After installing the CM 212 EVO my temps dropped to about 30C at idle. Running Prime95 for several hours never got it above 58C, so that was a substantial improvement.

The 212 EVO fan is also quieter than the stock fan. I can't hear it ramping up and down like I could with the stock fan.

I'm much happier now.
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