Please login or register.

Login with username, password and session length
Advanced search  

News:

New members, please remember to read the Forum Rules and the Posting Guide before posting for the first time!

Pages: [1]   Go Down

Author Topic: G31TM-P21 & cpu fan running at full speed  (Read 2268 times)

0 Members and 1 Guest are viewing this topic.

zukuss

  • Neo
  • *
  • Offline Offline
  • Posts: 9
G31TM-P21 & cpu fan running at full speed
« on: 20-August-11, 15:54:34 »

Hi there,
I have a brand-new G31TM-P21 board with a XDream4 cpu fan with a 3-pins connector.
My problem is the cpu fan is running at full speed all the time, and keeps the cpu at a temp of 20-30C (not bad for the cpu, but could definitely lower the cpu fan speed!).
I plugged the fan to either cpufan1, sysfan1 and sysfan2, no difference, PCHealth in BIOS indicates the fan is running at 2600+ rpm, and changing the variables (target temp and max speed) have no effect. Used SpeedFan, nothing I'd do would lower the fan speed.
I also used MSI OverClocking Center, didn't allow me to change the fan speed too...
Both 3 connectors are equiped with sensors as per the board's manual, but only the cpu fan has a control pin, on pin#4. Does it mean only a 4-pins fan would be able to be controlled? I understood a 3-pins connector with a sensor could be controlled, i.e. when using SpeedFan and selecting 3-pins instead of 4-pins in the advanced tab...



Please help!

edit: and yes, it already has the last bios version
Thx,
« Last Edit: 20-August-11, 16:08:20 by zukuss »
Logged

Stu

  • Hawk
  • *
  • Offline Offline
  • Posts: 19581
  • Birmingham, UK
    • StuOnline.co.uk
Re: G31TM-P21 & cpu fan running at full speed
« Reply #1 on: 20-August-11, 16:19:53 »

You need a 4pin CPU fan for the fan control (by BIOS) to work.
Logged
Former moderator and admin, 2004-2012
Pages: [1]   Go Up