MSI X99A SLI User Manual - Page 41

CPUFAN1, SYSFAN1~3, PUMPFAN1: Fan Connectors, Controlling the fan speed

Get MSI X99A SLI PDF manuals and user guides View all MSI X99A SLI manuals
Add to My Manuals
Save this manual to your list of manuals

Page 41 highlights

CPUFAN1,SYSFAN1~3,PUMPFAN1: Fan Connectors Fan connectors can be classified as PWM (Pulse Width Modulation) Mode and Voltage Mode. PWM Mode fan connectors provide constant 12V output and adjust fan speed with speed control signal. Voltage Mode fan connectors control fan speed by changing voltage. Therefore, when you plug a 3-pin (Non-PWM) fan to a PWM Mode fan connector, the fan speed will be always maintained at 100%, and that could be noisy. PWM Mode fan connector 1 CPUFAN1 1 Ground 2 +12V 3 Sense 4 Speed Control Signal Voltage Mode fan connector 1 SYSFAN1 1 Ground 3 Sense 1 SYSFAN2/ SYSFAN3/ PUMPFAN1 2 Voltage Control 4 NC Controlling the fan speed There are two ways to manage fan speed. One is to go to BIOS > HARDWARE MONITOR. The other is to use COMMAND CENTER application. BIOS > HARDWARE MONITOR COMMAND CENTER Both methods offer gradient points of the fan speed that allow you to adjust fan speed in relation to CPU temperature. Overview of Components 41

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
41
Overview of Components
CPUFAN1,SYSFAN1~3,PUMPFAN1: Fan Connectors
Fan connectors can be classified as PWM (Pulse Width Modulation) Mode and Voltage
Mode. PWM Mode fan connectors provide constant 12V output and adjust fan speed
with speed control signal. Voltage Mode fan connectors control fan speed by changing
voltage. Therefore, when you plug a 3-pin (Non-PWM) fan to a PWM Mode fan
connector, the fan speed will be always maintained at 100%, and that could be noisy.
1
CPUFAN1
1
Ground
2
+12V
3
Sense
4
Speed Control Signal
1
SYSFAN1
1
SYSFAN2/ SYSFAN3/ PUMPFAN1
1
Ground
2
Voltage Control
3
Sense
4
NC
PWM Mode fan connector
Voltage Mode fan connector
Controlling the fan speed
There are two ways to manage fan speed. One is to go to
BIOS >
HARDWARE
MONITOR
. The other is to use
COMMAND CENTER
application.
BIOS > HARDWARE MONITOR
COMMAND CENTER
Both methods offer gradient points of the fan speed that allow you to adjust fan speed
in relation to CPU temperature.