High speed 120mm PWM fan for 4 pin CPU header

Hi,

Can't seem to find any of these fans with max speed greater than 1500
RPM. Anyone know of any capable of 2000 RPM or greater? Not interested
in 3 pin fans here since they'll be maxed all the time on the 4 pin
header (ASUS MB). Thanks.

On 25/07/2008 19:16, wrote:

Can't seem to find any of these fans with max speed greater than 1500
RPM. Anyone know of any capable of 2000 RPM or greater? Not interested
in 3 pin fans here since they'll be maxed all the time on the 4 pin
header (ASUS MB). Thanks.

For a machine where I wanted a specific (slim) 3-pin fan, but wanted
4-pin for speed control, I bought one of these

http://www.paqt.co.uk/store/index.ph...od&productId=5

Which modulates a 3-pin fan, without losing fan sensor readings, the web
site shows a "prototype" the actual one on sale is a proper PCB, not
just knocked up on veroboard.

wrote...

Can't seem to find any of these fans with max speed greater than 1500
RPM. Anyone know of any capable of 2000 RPM or greater? Not interested
in 3 pin fans here since they'll be maxed all the time on the 4 pin
header (ASUS MB). Thanks.

Why do you think you need a higher-speed fan? The idea behind larger fans is to
turn them more slowly and keep them quieter...

Okay, thanks.

On Jul 25, 3:46*pm, Andy Burns
wrote:

For a machine where I wanted a specific (slim) 3-pin fan, but wanted
4-pin for speed control, I bought one of these

http://www.paqt.co.uk/store/index.ph...od&productId=5

Which modulates a 3-pin fan, without losing fan sensor readings, the web
site shows a "prototype" the actual one on sale is a proper PCB, not
just knocked up on veroboard.

Why do you think you need a higher-speed fan?

Based on temperature measurements.

The idea behind larger fans is to turn them more slowly and keep them quieter...

Great idea and with thermal control you decide how fast you want them
to turn at idle and under load. This makes the speed and noise at idle
independent of the fan's maximum speed. However, if CPU temperature
dictates a higher speed requirement under load than the fan is capable
of delivering then one option is to look for a faster fan. Fans are
usually cheap.


On Jul 25, 4:12*pm, "JR Weiss"
wrote:
wrote...
Can't seem to find any of these fans with max speed greater than 1500
RPM. Anyone know of any capable of 2000 RPM or greater? Not interested
in 3 pin fans here since they'll be maxed all the time on the 4 pin
header (ASUS MB). Thanks.

Why do you think you need a higher-speed fan? *The idea behind larger fans is to
turn them more slowly and keep them quieter...

here are a couple of choices

Antec Tri Cool...1200/1600/2200 RPM

NMB-MAT (Panaflo) 120 mm Ball Bearing Fan 2500RPM 104CFM 41.5DBA, RPM Sensor

NMB-MAT (Panaflo) 120MM Hydro Wave Bearing Fan 2100RPM 86.5CFM 35.50DBA
W/SENSOR 120X120X38MM RoHS

Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black
Knob


peter

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wrote in message
...
Why do you think you need a higher-speed fan?

Based on temperature measurements.

The idea behind larger fans is to turn them more slowly and keep them
quieter...

Great idea and with thermal control you decide how fast you want them
to turn at idle and under load. This makes the speed and noise at idle
independent of the fan's maximum speed. However, if CPU temperature
dictates a higher speed requirement under load than the fan is capable
of delivering then one option is to look for a faster fan. Fans are
usually cheap.


On Jul 25, 4:12 pm, "JR Weiss"
wrote:
wrote...
Can't seem to find any of these fans with max speed greater than 1500
RPM. Anyone know of any capable of 2000 RPM or greater? Not interested
in 3 pin fans here since they'll be maxed all the time on the 4 pin
header (ASUS MB). Thanks.

Why do you think you need a higher-speed fan? The idea behind larger fans
is to
turn them more slowly and keep them quieter...

here are a couple of choices

Thanks but neither the Antec nor the Silverstone are PWM fans so I
assume the rest aren't either.


On Jul 26, 12:43*am, "peter" wrote:
here are a couple of choices

Antec Tri Cool...1200/1600/2200 RPM

NMB-MAT (Panaflo) 120 mm Ball Bearing Fan 2500RPM 104CFM 41.5DBA, RPM Sensor

NMB-MAT (Panaflo) 120MM Hydro Wave Bearing Fan 2100RPM 86.5CFM 35.50DBA
W/SENSOR 120X120X38MM RoHS

Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black
Knob

peter

wrote:
here are a couple of choices

Thanks but neither the Antec nor the Silverstone are PWM fans so I
assume the rest aren't either.


There is one here.

http://www.rexususa.com/fans/21225-4.html

Available for $18

Rexflo DF1212025BH-PWMG 120mm Case Fan - Retail
http://www.newegg.com/Product/Produc...82E16835705025

You can see the 4 wire connector on the end here.

http://c1.neweggimages.com/NeweggIma...705-025-04.jpg

Paul

Thanks. Just what I'm looking for. Even see it cheaper elsewhere.

On Jul 26, 11:24*am, Paul wrote:
wrote:

http://www.rexususa.com/fans/21225-4.html

Available for $18

Rexflo DF1212025BH-PWMG 120mm Case Fan - Retailhttp://www.newegg.com/Product/Product.aspx?Item=N82E16835705025

You can see the 4 wire connector on the end here.

http://c1.neweggimages.com/NeweggIma...705-025-04.jpg

* * Paul

Got two at $10.50 each here;

http://www.coolerguys.com/rexpwm.html

Quite good.

On Jul 26, 5:52*pm, " wrote:
Thanks. Just what I'm looking for. Even see it cheaper elsewhere.