AUX IN system board connector Pin Signal
4 AUX RIGHT
Front USB system board 2x5 connector Pin Signal
1
2
3
4
5
6
7
8
9
10
+5V
+5V
USB6-
USB7-
USB6+
USB7+
GND
GND
Key (no pin)
Connector Present Detect
CAUTION: The 2x5 system board connector can be mated to a wide 2x5 option cable connector or a narrow 1x5 option cable
connector.
To prevent damage to connectors, connect a narrow 1x5 option cable connector to pins 1,3,5, and 7 only of the 2x5 system
board connector. (Pin 9 is not keyed on the system board connector.)
P25 Internal USB, CPU heatsink power system board 1x5
connector
Pin Signal
1
2
3
4
5
+5V
USB3-
USB3+
GND
Key (no pin)
FDD system board connector Pin Signal Pin Signal
1
2
3
4
5
6
7
Ground
FLP_LOWDEN#
Key (no pin)
FLP_WDO
Key (no pin)
Unused
Ground
18
19
20
21
22
23
24
FLP_DIR#
Ground
FLP_STEP#
Ground
FLP_WDATA#
Ground
FLP_WRTEN#
ENWW Connector pin descriptions 163