American Megatrends 780 Hardware Manual page 20

Jumpers,
Continued
J6 Feature Connector J6 is a 20-pin feature connector.
Pin Signal Description
1 SMI#
3 CONP
5 PWROFF#
7 LPOK
9 NMI
11 RESET#
13 GND
15 SECURE
18 INTRUD#
19 KEY
J7 Wall Adapter Power Jack J7 is a three-pin jack for the wall adapter
Pin
1
2
3
J8 Flash Jumper J8 is a two-pin connector for the flash jumper.
Pin
1
2
J9 Battery Connector J9 is a five-pin connector for the battery backup
Pin
1
2
3
4
5
J11 5V to 3.3V Converter J11 is a two-pin connector used to select 5V or
Pin
1
2
power unit.
Description
VCC
NC
GND
Description
VPP
VCC
power system for the MegaRAC.
Description
VBAT-
TSENSE
VBAT+
Ground
Ground
3.3V.
Description
VCC (5V)
VCC (3.3V)
Pin Signal Description
2 CCLK
4 KEY
6 I2CDATA
8 KEYUNLK
10 AUXV
12 GND
14 KEY
16 GND
17 SPARE
20 GND
Chapter 2 Installation 14