CPU Cooling Fan

What is the optimal rpm for a cpu cooling fan? My fan is running at an average of 4018 rpm's

 

That would depend on the fan cause there are so many differnt ones.
The type of CPU may make differance, nobody knows what ya got.

Then What is Optimal?
Is it the speed that provides the best cooling or is it the speed that is quieter?????
Optimal could be Opinion.
Get my drift.

 

Sorry, about that. I thought it would be a generic question. My cpu is an AMD Athalon XP 1.6 mhz. I dont have any idea what brand of fan or heatsink is being used. Im using a M7VIG 400 Motherboard from Biostar, with a North Bridge VIA KM266 pro chipset

As for optimal, im referring to cooling, i can live with some noise

 

Asking for optimal is like asking how long a piece of string is.

There are too many variables for it to be accurate.

Is it overheating, or what is your concern?

 

yes i was(hoping i fixed it by removing heatsink and putting more thermal paste on cpu and putting heatsink and fan back on) I was getting temps of 64 c on heavy loads and comp beeping. Now im getting temps ranging from 51 to 54 c on heavy loads, but im worried that is still to high,

 

That's not too high at all and is within normal operating temperature.

It's quite good actually, if it's accurate.

 

ive been told that i should be running at around 35 c with fan rpm's around 5000, but i cant find out from anywhere what the specs should be, thats why im posting and worried about my fan rpms

 

I'm not sure that I'd place much reliance on those figures unless you have some assurance that they apply to your specific fan, CPU, and case.

35c seems reasonable for an AMD 1.6GHz CPU (given a good HSF and case), but it would be very difficult to get temps that low aircooling a 2.6GHz CPU. The latter throws off a lot more heat.

Fan rpm depends entirely on the design of the fan. There is no "standard" rpm. And it's somewhat irrelevant anyway -- the real consideration is "how much air can it move?" That depends as much on blade design as it does on rpm.

 

xyxex_kayn, the maximum operating temperature for your CPU is 90°C. 65°C is normal.

Whoever told you 35°C is wrong. The only thing that would ran at that would be your hard drive, not a CPU.


HERE is a list of maximum temperatures for popular CPU's.

 

Insomniac has persuaded me to reconsider my previous post.

xyxex_kayn has described his CPU as "an AMD Athalon XP 1.6 mhz". My previous post assumed that he meant an Athlon XP 1600+, which has a clock speed of 1400MHz (1.4GHz). If that's correct, I'll stand by my previous post.

If xyxex_kayn is referring to the Athlon XP 2000+ (which actually runs at 1.667GHz), then 35c is very low -- I doubt that it is acheivable without some form of refrigeration. Air cooling won't do it.

For comparison: I run an Athlon XP2500+. It's actual clock speed is 1.833GHz. It runs at around 42c at idle or moderate use, and around 47c - 50c under 100% load. Reference to MBM Temp Report Tool suggests that my temps are about average for my CPU, or maybe a little lower than average.

 

"More" thermal paste probably isn't a good idea. Ideally, you want no more than the absolute minimum needed to ensure that there are no air gaps or voids between the CPU chip and the heatsink surface.

Thermal paste is a much better heat conductor than air, but it still isn't a "good" heat conductor. The thermal paste layer should be as thin as possible.

Check out Arctic Silver's instructions for the use of its thermal pastes.

 

Hi,

The fans minium RPM rate is 1300 and max is 4800RPM.

In fact, if one installs extra fans in a PC case, the noise levels can reach 70 dB. Since fan noise increases exponentially to the fan rotation speed, reducing rotations per minute (RPM) by a small amount potentially means a reduction in fan noise.[citation needed] This must be done cautiously, as excessive reduction in speed may cause components to overheat and be damaged. If done properly fan noise can be drastically reduced.

_____________________
Cpu Cooling Fan

 

Perhaps -- if the fan is in the 60mm range. But how do you know that without knowing what size or kind of fan is involved? I don't see anywhere that xyxex_kayn has given us that info.

 

well i have a computer with a athlon xp 1800+ and my fan spins somewhere from 5000rpm-6000rpm and it gets as cool as 99 degrees F