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Case Fan trouble - Asrock z87 Extreme 4 + Fractal Design r4

  • ASrock
  • Cooling
  • Fan
  • Components
  • Cases
  • Fractal Design
Last response: in Components
December 8, 2013 4:18:32 PM

hi guys,

im unable to control the 2 fans (3pin) that came with the case, Neither via software (Fan-Tastic) nor in the UEFI settings. Both fans just run at full speed. Can somebody tell me what im doing wrong?

More about : case fan trouble asrock z87 extreme fractal design

December 8, 2013 4:34:36 PM

Use the Define R4's built in controller.
Connect the controllers molex power cable to the PSU, and you can run three fans at hi-med-low from the switch inside the front panel.

But have a good read over of the motherboard's manual. Usually you can set up a custom fan profile that might work.
December 8, 2013 7:14:39 PM

Check Section 4.6 of your manual on p. 97 - that's where you can adjust fan settings. Your mobo has 3 chassis fan ports - one 4-pin at the bottom edge, and two 3-pin in the middle of the board. Your case came with 3-pin fans.

You should be aware that a 3-pin fan plugged into a normal 4-pin fan port will always run at full speed. SOME mobos allow you to alter the way that 4-pin port operates to make it behave like a 3-pin fan port, but I don't know whether yours does or not. So check the BIOS settings in Section 4.6 to see if you have that option for the CHA_FAN_1 port.

Alternatively, you could simply connect both of your fans to the CHA_FAN_2 and _3 ports, then configure each under Section 4.6.

The manual does not make it clear what options you have for adjustment. Usually you can disable a port (some of these may be by default), set it to automatic control, set it to a fixed speed, or set it to a version of automatic control in which you custom specify what speed it will run for certain temperature values. For the case fan ports, the "temperature" it uses is sensed by a probe built into the mobo itself.
(For the CPU cooling system, the temp used is from a sensor built into the CPU chip.)
December 9, 2013 12:07:55 PM

hey guys, i connected the case controller like 2x4b suggested, it works fine. Thanks again, both of you.