I'm confused between "CPU fan" and "case FAN." Reviews don't often distinguish. We want a fan replacement on a CPU heatsink. The heatsink stays, but fanless is not thermally possible.
Reviews cover heatsink bundles, not parts. I'm not clear sourcing quiet fans for heatsinks. Looking for cheap, < $15.
Sleeve bearings are no-go because of mechanical mounting direction. Maybe fluid bearings of some kind would work.
iWill KA266 motherboard (ATX) mounted edge parallel to ground
AMD Athlon 1333 MHz Socket 462
3-pin fan power connector
Sourcing fans for standard heatsinks
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee
Some fans have a higher static pressure, and hence are better suited for heatsinks. Case fans generally have little flow obstruction so do not need as high static pressure.
In general, fatter (ie 38mm vs 25 or 20mm) fans have a higher static pressure. You will find this information more on water cooling sites, where people measure fans against radiators.
Here is a (small) review that measures static pressure:
http://martinsliquidlab.i4memory.com/FanTesting.html
That said, given you are likely after a quiet fan running at fairly low RPM, I wouldn't worry too much about it. Unless a fan is specifically noted as having low static pressure (say some of the Noctua fans), it should be fine. Check out the SPCR fan reviews and pick a fan that meets your needs.
EDIT: Ah found it, here is another look at fans and how they perform against a radiator http://www.xtremesystems.org/forums/sho ... p?t=171661
Note however that the sound measurements are likely nowhere near as accurate as the SPCR reviews, but should give you some indication.
In general, fatter (ie 38mm vs 25 or 20mm) fans have a higher static pressure. You will find this information more on water cooling sites, where people measure fans against radiators.
Here is a (small) review that measures static pressure:
http://martinsliquidlab.i4memory.com/FanTesting.html
That said, given you are likely after a quiet fan running at fairly low RPM, I wouldn't worry too much about it. Unless a fan is specifically noted as having low static pressure (say some of the Noctua fans), it should be fine. Check out the SPCR fan reviews and pick a fan that meets your needs.
EDIT: Ah found it, here is another look at fans and how they perform against a radiator http://www.xtremesystems.org/forums/sho ... p?t=171661
Note however that the sound measurements are likely nowhere near as accurate as the SPCR reviews, but should give you some indication.
Mounting screws
Any diff between mounting screw positions, or is that standardized. What about clips vs. screws.
What is considered low RPM - the reason for replacement was single-freq whine.
Any models < $15 would be great.
Thanks.
What is considered low RPM - the reason for replacement was single-freq whine.
Any models < $15 would be great.
Thanks.