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Fan Connectors
The system board has three 4-pin, shrouded, and keyed fan connectors.
Pin
Signal
1
+12V
2
GND
3
Fan sensor
4
Speed adjust (If Applicable)
SVGA Video Port
Pin
Signal
1
Red
2
Green
3
Blue
4
NC
5
GND
6
GND
7
GND
8
GND
Keyboard and Mouse Connectors
The keyboard and mouse connectors are functionally equivalent.
Pin
Keyboard signal
1
KEYDAT
2
NC
3
GND
4
FUSED_VCC (+5 V)
5
KEYCLK
6
NC
Fan Connector Pinout
Video Port Connector Pinout
Pin
9
10
11
12
13
14
15
Keyboard and Mouse Connector Pinouts
Signal
NC
GND
NC
DDCDAT
HSYNC
VSYNC
DDCCLK
Pin
Mouse signal
1
MSEDAT
2
NC
3
GND
4
FUSED_VCC (+5 V)
5
MSECLK
6
NC
Connectors C-5
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Troubleshooting
