5-18
S
UPER
S
ERVER 1027R-72BRFTP User's Manual
ATX PS/2 Keyboard and PS/2
Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse ports are located beside the
USB ports. See the table on the right
for pin definitions.
PS/2 Keyboard and
Mouse Ports
Pin Definitions
Pin# Definition
1
Data
2
NC
3
Ground
4
VCC
5
Clock
6
NC
Fan Headers
This motherboard has six system/CPU
fan headers (Fan 1~Fan 6) on the moth-
erboard. All these 4-pin fans headers are
backward compatible with the traditional
3-pin fans. However, fan speed control
is available for 4-pin fans only. The fan
speeds are controlled by firmware ther
-
mal management via IPMI interface. See
the table on the right for pin definitions.
Fan Header
Pin Definitions
Pin# Definition
1
Ground
2
+12V
3
Tachometer
4
Pulse Width Modu-
lation (PWM)
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the motherboard. Attach an
appropriate cable from the chassis to
inform you of a chassis intrusion when
the chassis is opened.
Chassis Intrusion
Pin Definitions
Pin# Definition
1
Intrusion Input
2
Ground
Overheat/Fan Fail LED
The JOH1 header is used to connect
an LED indicator to provide warnings
of chassis overheating and fan failure.
This LED will blink when a fan failure
occurs. Refer to the tables on right for
pin definitions.
OH/Fan Fail LED
Status
State Message
Solid
Overheat
Blinking
Fan Fail
OH/Fan LED
Pin Definitions
Pin# Definition
1
5vDC
2
OH Active
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