Megahalems + i7-3770 Temperatures

Cooling Processors quietly

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Oubadah
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Joined: Sat Sep 10, 2011 2:57 am

Megahalems + i7-3770 Temperatures

Post by Oubadah » Thu Aug 02, 2012 12:53 pm

IGP: Enabled (idle in desktop)
No Overclock
HT: On
Turbo: On (so 3.7GHz with all cores loaded)
Ambient temp: ~20°C
TIM: Arctic Cooling MX-2

This is the 'black' Megahalems - it has some kind of stupid powder coating on it.

The fan is a Noctua NF-S12B on the motherboards auto controller (~650rpm at full load).

Temperature at full load: 58°C, 64°C, 68°C, 66°C

I was expecting better, but then every time I buy a large and expensive cooler they seems to perform like rubbish.

What do you guys think?

mentawl
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Location: Glasgow, UK

Re: Megahalems + i7-3770 Temperatures

Post by mentawl » Thu Aug 02, 2012 2:26 pm

Assuming you're running IntelBurnTest or something similar as a load test, those temperatures are about what I'd expect for an IB CPU, particularly with a relatively slow fan like that.

ces
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Location: US

Re: Megahalems + i7-3770 Temperatures

Post by ces » Thu Aug 02, 2012 3:03 pm

1. That is higher than I would like. But it is tolerable if your regular day to day, non-benchmark temps are reasonable. What temp does it usually run when you are not stressing it.

2. 650rpm is pretty slow, why not add a second fan. In fact why not try two Nexus 120mm fans,

3. Try reseating the cooler and use a TIM that doesn't require a break in period.

4. 58-66 C is well below the 110C that these chips are designed for. 48 - 56C when not loaded, isn't that bad. And the 3770 has a reputation for running hot because of poor heat transfer from the chip to its casing. See:
viewtopic.php?f=28&t=64782

5. It would be much worse with the stock cooler.

CA_Steve
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Re: Megahalems + i7-3770 Temperatures

Post by CA_Steve » Thu Aug 02, 2012 6:03 pm

What's the core idle temps when your ambient is 20C?

ces
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Location: US

Re: Megahalems + i7-3770 Temperatures

Post by ces » Fri Aug 03, 2012 8:50 pm

Try this cheap trick to get a few more degrees of cooling. Please let us know if it helps:
viewtopic.php?p=563462#p563462

Oubadah
Posts: 29
Joined: Sat Sep 10, 2011 2:57 am

Re: Megahalems + i7-3770 Temperatures

Post by Oubadah » Sun Aug 12, 2012 11:47 pm

CA_Steve wrote:What's the core idle temps when your ambient is 20C?
22-33°C (it fluctuates rapidly, apparently normal for this proc) at 19.5°C ambient

The fan runs at ~250rpm during idle.
ces wrote:Try this cheap trick to get a few more degrees of cooling. Please let us know if it helps:
viewtopic.php?p=563462#p563462
I need a picture of what you're proposing. You mean basically turning the heatsink into a duct by blanking the sides?

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