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My MotherBoard Temperature is 40 - 42 C
My CPU Temperature is 49 - 51 C
Both of these are ok I think
My CPU is an AMD 1.3gz
MY CPU Fan is going at 5300-5400 rpm - but I have no idea if this is 'normal'
Is faster or slower better for the CPU Fan ?
Thanks - Lesley
Your motherboard is very warm, how hot is the room it is in? I would suggest trying to increase airflow by either cable tying things out of the way or adding some fans.
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I agree with Cliff, more cool air from outside of the case will help. But your temps aren't the most terrible.
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System/board temp should be kept within 5-10C above room temp. This is the air your CPU fan is taking to cool the processor.
One or two front intake and one or two rear exhaust should be sufficient to keep the board/system temp down to the range. Air turbulence is not a good thing, steady air flows across is the best. Therefore, side panel fan without ducting creates turbulence that defeats the desirable air flows, while top exhaust is okay.
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real_cool, what you said about turbulance and steady air flow, I disagree. Actually you want turbular air flow in the case starting from the intake and flowing to the exhaust, because turbular air will break laminar static air layer at the hot surface. You want as much turbulance as possible at the surface to remove maximal amount of heat. So side panel fan is fine. Most of the intake fans are at the lower portion of the front or side because cool air is heavier, exhuast fans are in the back upper position because hot air is lighter and most of the heat generating components are close to the upper back. But air duct to CPU is a good idea to keep it cool.
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Turbulence is the disburtance of air stream, in which an ideal air stream in ATX tower case is to draw cooler outside air from front / side of the case to upper rear exhaust. A very slow fan below the AGP card would "clear" any dead heat spot, but a 80mm fan would disturb the ideal air flow.
Large side panel fans are there to attract the "feel good" buyers. Good cases like Lian-Li for example would have two 80mm intake fan with filter, one or two exhaust but no side panel fan and have excellent ventilation.
I did an experiment using a clear window panel case and "smoke" to create a visual effect of the "air stream".
If you want to have a system that does not attract all the dust from your room and provides excellent case venitation, get a case like Lian-Li (you would find similar cases other than Lian-Li).
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Lesley:
To answer your question, 5400rpm is quite fast for a fan but obviously you need it!
The more rpm the higher the airflow, the cooler the cpu. But also a lot more noise!You should use some sort of cooling software for your cpu. That won't help with 100% cpu usage but it helps a lot in my 1,2@1,33GHz Athlon.
If you have a board with VIA controller try VCool, otherwise I also worked with CPUIdle but that's not free (30 day test so). There are also other programs as freeware!BTW:
At high cpu loads opening the case will help!
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