
IMB523R / 524R / 525R LGA1151 ATX Motherboard
Board and Pin Assignments
23
2.5.18
Fan Connectors (FAN1~FAN3)
This motherboard has three fan connectors. Find fan speed option(s) at BIOS Setup
Utility: Advanced\HW Monitor\PC Health Status.
The FAN1 (4x1-pin p=2.54mm) is for the the CPU fan connector.
The FAN2 and FAN3 (4x1-pin p=2.54mm) are for system fan connectors.
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection