Arctic Cooling Freezer 7 Pro Rev 2 dodgy fan?

[ihero]

When i start the pc up i get the CPU fan error so i press f1 to continue, the fan spins but wont go over 550rpm. In fact it stays at around 540rpm on idle and load, i've tried changing the speed with both asus pc probe and speedfan to no effect.

I wanted to check if it was getting enough power by plugging it straight into the psu but i cant find a 4 pin fan to molex anywhere, do they even exist? :|

specs are:
ASUS P5QPL-AM
Intel Q6600 Kentsfield (no oc)
2GB ram
800W POWERX PSU

apologies for grammer/spelling as im in a bit of a rush, thanks

 

[panyan]

i cant find a 4 pin fan to molex anywhere, do they even exist?

i doubt it, the fourth pin is the motherboard control pin that controls the rpm, that wouldnt happen if you cennected it straight to the PSU, look for three-pin to molex

 

[davieg]

Have you tried turning off Q-Fan control in the Bios too?

 

[ihero]

i doubt it, the fourth pin is the motherboard control pin that controls the rpm, that wouldnt happen if you cennected it straight to the PSU, look for three-pin to molex

ah ok thanks il get one tomarrow.

Have you tried turning off Q-Fan control in the Bios too?

nope, whats supposed happen after i turn it off?

 

[panyan]

nope, whats supposed happen after i turn it off?

the 4-pin will no longer recieve rpm control and behave like a 3-pin i.e. always at 100% rpm so you can see if it is the fan that is faulty, or bad bios settings

 

[ihero]

ok i turned Qfan off and the fan just stopped completely :|

 

[panyan]

ok i turned Qfan off and the fan just stopped completely :|

hmmm, can you tell Q-fan to work at 100%?

 

[wentalong]

does the fan really need to go over 540RPM? whats your temps? and you can just try another 4pin fan and see if its the bios or fan,