E8400 w/ Passive mini ninja = 75c @ Full Load.....too high?

Cooling Processors quietly

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gundam83
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E8400 w/ Passive mini ninja = 75c @ Full Load.....too high?

Post by gundam83 » Thu May 14, 2009 12:44 am

I'm running a 120mm exhaust fan in my P180 (with a 120mm intake fan in the upper HDD cage) with a passive Scythe Mini Ninja and I'm getting low 40's on idle and 75C @ full load using prime95 (large). Is this too high? I know I will rarely touch the full load temps, but I'm still a tad reluctant to leave this passive setup. Adding the stock 80mm fan lowers the temp to 54C @ full load.
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Olle P
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Post by Olle P » Thu May 14, 2009 1:01 am

75C seems dangerously close to damaging the CPU. Improved cooling at full load is definitely advisable.

Cheers
Olle
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burebista
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Post by burebista » Thu May 14, 2009 1:26 am

Relax man, you're good to go. 25C distance to TJmax is perfect fine.
For comparison take a look at this. :shock:

Image
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Matija
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Post by Matija » Thu May 14, 2009 1:49 am

If Tjmax for the Q9550 is 100C, then 130C is impossible.
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burebista
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Post by burebista » Thu May 14, 2009 2:30 am

Why? Intel never release thermal shutdown temp for desktop processors.
All we know is thermal throttle begins at 2-3°C distance to TJMax and it seems that thermal shutdown is beyond 136°C. :D
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Vicotnik
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Post by Vicotnik » Thu May 14, 2009 2:38 am

75C with that configuration seems a bit high. gundam83, do you overclock the CPU? If you run it at stock 3.0GHz you could probably lower the Vcore to ~1.1v and get the temps down a bit. You could also try moving the intake fan to the top of the P180 and see if a negative pressure setup (both fans sucking air out of the case) would give any more airflow through the Minja.
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mackworth
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Post by mackworth » Thu May 14, 2009 3:31 pm

I don't have my E8400 with mini ninja any more, but my temps were well below that. Like alot below that.
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merlin
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Re: E8400 w/ Passive mini ninja = 75c @ Full Load.....too hi

Post by merlin » Fri May 15, 2009 10:25 am

gundam83 wrote:I'm running a 120mm exhaust fan in my P180 (with a 120mm intake fan in the upper HDD cage) with a passive Scythe Mini Ninja and I'm getting low 40's on idle and 75C @ full load using prime95 (large). Is this too high? I know I will rarely touch the full load temps, but I'm still a tad reluctant to leave this passive setup. Adding the stock 80mm fan lowers the temp to 54C @ full load.
If it's possible, I'd highly recommend doing a little undervolting. I suspect you could get load temps down to around 65C with some good undervolting. Otherwise is there any chance of having a case fan or something else that can help add more airflow near the heatsink?
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