Increasing fan rpm?

[SephirothXavior]

Is there any way of increasing the rpm of cpu fans?

Is there some sort of trick I could possibly do because the speed of the fan flacuates very much from 3500-3900rpm. I would like to somehow keep it at a constant 4000rpm. It is a stock intel heatsink and fan. Motherboard Monitor says that my temp is 22C right now jus surfing the net and that System Information Viewer says that my fan is funning at 3766rpm. I know if I could keep the fan at 3900-4000rpm i could lower my idel temp and also my load temp which is about 38-40C. I have a Celeron 1GHz @ 1.333GHz.

Or should I just go and by a Volcano6 for $22. I would rather keep this fan than buying a new hsf all together because I could use that money for other stuff........like McDicks!!:)

Thanks alot in advance.

[Hoot]

Depending upon your PSU wattage, your +12V will vary somewhat with the load on your +5V, which is largely due to what your CPU is doing. That is perfectly normal. Also, MBM will report fan speed variances, sometimes when none are occurring. I just finished retesting an SK-6 with a 38cfm Delta on it and at times, it reported the speed as 7500 RPM and at times it reported the speed at 7336 RPM while the CPU was idling, IE load on the +5V was not varying and +12V was a constant 12.46. My ear told me the speed was not changing also.

Hoot

[ButcherUK]

Small breezes could make a fan vary by that much hoot, I doubt you'd hear the difference either.

[The Overclocker]

Originally posted by ButcherUK
Small breezes could make a fan vary by that much hoot, I doubt you'd hear the difference either.

i think some peoples ears may be more sensative to changes then others - i can definatly tell when my fans are changing speed - mainly because the are running slower anyway at 5v

[Captain Slug]

Another option would be stacking two matching fans to make a wind-tunnel. This wouldn't double your Dba but it would be a little noisier.
I've tried this on several occasions with successful results. One thing that works well is to stack a high speed fan over a medium speed fan.