Alpha PAL 8045 plus Papst 8312L fan on C 1333: 49C idle too much?

DoctorBooze

Senior member
Dec 10, 2000
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As noted, my Athlon C 1333, fitted with Alpha PAL 8045 and Papst 8312L fan, is running 49C at idle (system temp 28C), or so the motherboard tells me. At 100% usage (SETI@home), it rises all the way to 54C (system temp 30C). This seems rather hot at idle, but is this just the inevitable effect of having a feeble fan on a huge heatsink?

The PSU is an Enermax 350W (with two fans), there's no other case cooling, nor will there be except possibly another silent fan, probably for intake of cool air at the front.

Also, the BIOS hardware monitor says 30C as soon as I get into it from cold, with a system/ambient temp of 15C, does the ECS K7S5A add 10C just for good measure?

My other machine is an Athlon C 1000, with Coolermaster DP5-6H51, also on ECS K7S5A. That idles at 42C, never seen what it gets to when hot (I don't dare, I don't like system crashes). That's a rubbish heatsink with a fast, noisy fan on it. Odd...

Anyway, did I mess up fitting the Alpha PAL 8045, and without resorting to more fans (I want to keep this PC quiet, it's noisy enough already), is there anything I should do to cool it down?
 

Kipper

Diamond Member
Feb 18, 2000
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Well, the problem here is probably airflow. With no case fans for intake/exhaust, what you're basically doing is blowing the same hot air out of the heatsink (you DO have the Pabst set on suck, right?). Even adding another case fan for intake will do nothing if you don't have a fan blowing out constantly. The Enermax is a whisper - is it not? This means it's thermally controlled, spinning up faster when the case is hotter. Unless you've got a crazy-loud Pabst, which is highly unlikely, I don't see the harm in adding a few more case fans...
 

Woody419

Senior member
Sep 22, 2001
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Hard to say if your temps are accurate. Every mb seems to report chip temps differently. The difference from between the case and your processor temperature is around 21C., which is right in line with the chart in the AT heat sink review. Even 60C. is no problem for an Athlon chip, and you are not even close.