NEC NEC Express5800 Series, Online Service Manual

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Connectors D-5
ATX Power Connector
ATX Power Connector Pinout
Pin Signal Wire color Pin Signal Wire color
1 +3.3 VDC Orange 11 +3.3 VDC
3.3 V sense Orange
Brown
2 +3.3 VDC Orange 12 -12 VDC Blue
3 COM Black 13 COM Black
4 +5 VDC Red 14 PS-ON_L Green
5 COM Black 15 COM Black
6 +5 VDC Red 16 COM Black
7 COM Black 17 COM Black
8 PWR-OK Grey 18 -5 VDC White
9 5 VSB Purple 19 +5 VDC Red
10 +12 VDC Yellow 20 +5 VDC Red
AT-Style Front Panel Connector
AT Style Front Panel Connector Pinout
Pin Signal
1 Power button
2 GND
3 NC
4 +5V
5 NC
6 HD LED
7 +5V
8 GND
9 NC
10 Internal Speaker Enable
11 Speaker Out
12 GND
13 NC
14 Power LED
15 NC
16 GND
17 Reset Switch
18 GND
19 NMI switch
Fan Interface
Note: Heatsink fans are not used with this server.