Fan speed isnt right.

**MemnonOfRhodes** · July 25, 2011, 06:56 AM

I just bought 2 new fans (Sharkoon S120) and plugged them into fan connectors of the PSU
Only now they run at a very slow speed...
Shouldn't they be on full speed when directly plugged in?

**MrHenry** · July 25, 2011, 07:24 AM

Originally Posted by Ujio

I just bought 2 new fans (Sharkoon S120) and plugged them into fan connectors of the PSU
Only now they run at a very slow speed...
Shouldn't they be on full speed when directly plugged in?

they dont have to run on full speed if the current fan speed is enough to cool your computer, thus having a higher fan speed atm is useless. download MSI afterburner and change the fan speed from there if you're worried.

**MemnonOfRhodes** · July 25, 2011, 07:47 AM

Originally Posted by xX_iCeD_Xx

they dont have to run on full speed if the current fan speed is enough to cool your computer, thus having a higher fan speed atm is useless. download MSI afterburner and change the fan speed from there if you're worried.

How exactly does that work in MSI?
Can't see anything concerning the case fans.
Just the GPU fan.

**Doono** · July 26, 2011, 02:25 PM

Define slow, the only reason they wont spin at full speed (assuming they are not, large fans spin slow anyway) is that your running too much off a single line, try different connectors.

You won't see anything in MSI afterburner for standard fans, they would need to be connected to the motherboard or a fan controler for that functionality.

**MemnonOfRhodes** · July 26, 2011, 02:49 PM

Originally Posted by Doono

Define slow, the only reason they wont spin at full speed (assuming they are not, large fans spin slow anyway) is that your running too much off a single line, try different connectors.

You won't see anything in MSI afterburner for standard fans, they would need to be connected to the motherboard or a fan controler for that functionality.

But they are directly connected to the PSU, how can the be too much?

**Doono** · July 26, 2011, 06:44 PM

If they are all tapped off the same line your probably under volting some of the fans, just try moving a fan to a different line and try again.

**MemnonOfRhodes** · July 27, 2011, 10:07 AM

Think I found the problem:
The cable going from the molex has 2 wires (black and white going from the molex connector), and my fans are 3 Pin..
And I've also noticed the systemfan port (4pin) is unused.

But what do I need exactly to solve this?
Buying a 3pin adapter?

EDIT, connected 1 of the 2 on the fan slot on the motherboard, turns out it is running at 600rpm instead of 1000.
So know both are running 600 rpm, 1 one the PSU and 1 directly on the MB)