Connecting Optional Devices - IBM M791 Series Manual

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SYSTEM_FAN
1
1
PANEL1
Connect the power connector from the power supply to the ATX1
connector on the mainboard.
If there is a cooling fan installed in the system chassis, connect the
cable from the cooling fan to the SYSTEM_FAN fan power
connector on the mainboard.
Connect the case switches and indicator LEDs to the PANEL1
connector.
Pin
Signal
1
HD_LED_P
3
HD_LED_N
5
RESET_SW_N
7
RESET_SW_P
9
RSVD_DNU

Connecting Optional Devices

Refer to the following for information on connecting the
mainboard's optional devices:
1
AUDIO2
1
SIR1
1
SPK1
ATX1
Pin
Signal
2
FP PWR/SLP
4
FP PWR/SLP
6
POWER_SW_P
8
POWER_SW_N
10
KEY
1
USB1
13

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