TYAN Thunder n6550EX Manual page 16

J19: Front Panel Header Connector
J21 J20
J23
Signal Pin
HD LED+ 1
HD_LED- 3
GND 5
RESET 7
GND 9
EXT_NMI 11
5VSB 13
SDA 15
SCL 17
10
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J29
J19
Pin Signal
2 PW_LED+
4 PW LED-
6 P_S/W
8 GND
10 FANFAIL_H
12 FANFAIL_L
14 Key
16 GND
18 INTRUDER_L