Asus KFN5-D SLI - Manual (Page 42)

2-22 Chapter 2: Hardware information
6. CPU fan pin selection (3-pin FM_CPU1, FM_CPU2)
These jumpers allow you to connect either a 3-pin or a 4-pin fan cable
plug to the CPU fan connectors (CPU_FAN1, CPU_FAN2). Set these
jumpers to pins 1-2 if you are using a 3-pin fan cable plug, or to pins
2-3 if you are using a 4-pin plug.
5. IEEE1394 controller setting (3-pin 1394_EN1)
This jumper allows you to enable or disable the IEEE1394 controller.
Set this jumper to 1-2 (Default) to enable the controller.
KFNS-D-SLI
R
KFN5-D SLI 1394_EN1 Setting
1394_EN1
Enabled
(Default)
1 2 2 3
Disabled
KFNS-D-SLI
R
KFN5-D SLI FM_CPU Setting
FM_CPU1
PWM DC Mode
(Default)
1
2
2
3
FM_CPU2
PWM DC Mode
(Default)
1
2 2
3
FM_CPU1
FM_CPU2
• If you set the FM_CPU1/2 jumper for a 3-pin fan, when you install a
4-pin CPU fan, the fan may not work.
• If you set the FM_CPU1/2 jumper for a 4-pin fan, when you install a
3-pin CPU fan, the fan controller may not work and the fan will run at
full speed.