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Oli · #2 (**permalink**) 08-11-2008, 06:14 AM

If you have Q-Fan disabled the fan shpuld always run with full RPM.

Shuriken uses a PWM controlled fan. If this fan is connected to a 4-pin fan header on the mainboard AND the PWM feature is activated in BIOS (Q-FAN for Asus) than the fan is regulated by the board based on temps.

This PWM regulation explains the difference in RPM. But as stated it should not happen if Q-FAN is off.

You should do some testing if 1200 rpm is sufficient to cool your system to acceptable temps at full load. If yes then do not use q-fan but use a manual fan controller like Fanmate 2 or something similar to set a fixed rpm rate for Shuriken's fan.

Cheers, Oli

#2 (permalink) 08-11-2008, 06:14 AM
Oli Senior Member Join Date: Aug 2007 Location: Germany, in the middle of Europe Posts: 443	If you have Q-Fan disabled the fan shpuld always run with full RPM. Shuriken uses a PWM controlled fan. If this fan is connected to a 4-pin fan header on the mainboard AND the PWM feature is activated in BIOS (Q-FAN for Asus) than the fan is regulated by the board based on temps. This PWM regulation explains the difference in RPM. But as stated it should not happen if Q-FAN is off. You should do some testing if 1200 rpm is sufficient to cool your system to acceptable temps at full load. If yes then do not use q-fan but use a manual fan controller like Fanmate 2 or something similar to set a fixed rpm rate for Shuriken's fan. Cheers, Oli __________________ C2D E6700@3.33Ghz@1,28V / Mugen, Ret Kit & 2x Slip Stream @ 550rpm / summer: idle 37 - load 70 / winter: idle 33 - load 64