Asus P5K-SE 4 pin CPU Fan header !!!

[9designs2]

Just putting together a new pooter !.....(it's been a 2 or 3 years, and it' all changed !!!

Have P5k-SE, and went for a Scythe Ninja Plus Rev.B CPU Cooler... which has a 120mm fan and a normal looking 3pin plug.... So why on earth does the mobo now have a 4 pin version on the CPU header !!!
It will fit, but does not run....(CPU was at 45c when viewing BIOS set-up screen.... Intel Core 2 Quad Pro Q6600 "Energy Efficient" OEM).
Connected to the 3 pin Chassis header instead, and works fine.

So now I have to replaced the supplied fan, to match the board ? or just leave it on the Chassis header ?

 

[Meridian]

You did put it on the correct three pins, didn't you? It should be on the three closest to the little back plate thing that sticks up - not on the pin furthest from the vertical bit. If you've got it right, the fan should work normally.


M

 

[WJA96]

It's probably working fine - depending on your BIOS setup, it won't spin the fan up if the CPU is cool enough - and cool enough can be a core temperature of 50C in my experience.

 

[9designs2]

Will only fit one to one end, leaving the left hand pin exposed. As the ribs do match up still with the header. Which is why I tried it...... Was expecting it to kick in much less than 50C !!!
Pretty sure I turned off the auto fan speed as well....to get it started.
Will try again later, see if I can get it warm enough

Cheers