Chapter 2
18
CPU/System Cooling Fan Connectors (FAN1/FAN2)
These added connectors allow the fan to draw
their power from the mainboard instead of the disk
drive connector.
The board's management extension hardware is
able to detect the CPU and system fan speed in
rpm (revolutions per minute). These connectors
supports 3-pin cooling fans with minimum of 3500
RPM. The wiring and plug may vary depending
on the manufacturer. On standard fans, the red
is positive (+12V), the black is ground, and the
yellow wire is the rotation signal.
IR & FIR Connector (IR4)
If you enable the UART Mode in BIOS's Integrated
Peripherals menu the UART port will support IR
& FIR functions. (See section 3-4)
PS/2 Mouse and Keyboard Ports (PT1)
If a PS/2 mouse is used, BIOS will automatically
detect and assign IRQ12 to the PS/2 mouse.
Pin
Definition
1
Data
2
No Connect
3
Ground
4
+5V (fused)
5
Clock
6
No Connect
FAN2
FAN1
Содержание 6AFV
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