21
Installing the Motherboard
CASE: Chassis intrusion detect header
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function
Short Chassis cover is removed
Open Chassis cover is closed
CD_IN: Analog audio input connector
Pin Signal Name Function
1 CD_L Left CD-in signal
2 GND Ground
3 GND Ground
4 CD_R Right CD-in signal
Trusted Platform Module (TPM) is a published specification detailing a
microcontroller that can store secured information, and implementations of that
specification.
TPM (optional): TPM module header
1 TPM_CLK 11 LAD0
2 GND 12 GND
3 LFRAME# 13 RESERVE0
4 KEY 14 RESERVE1
5 LREST# 15 VCC3_DUAL
6 VCC5 16 SERIRQ
7 LAD3 17 GND
Pin Signal Name Pin Signal Name
8 LAD2 18 CLKRUN#
9 VCC3 19 LPCPD#
10 LAD1 20 RESERVE2
SPI_DEBUG: SPI DEBUG header
This 16 MB DEBUG contains the programmable BIOS program.
1 CHIP SELECT Select chip
2 VCC VCC
3 DATA OUTPUT data output
4 HOLD hold
5 WRITE PROTECT BIOS write protect
6 CLOCK clock
7 CND CND
8 DATA INPUT data input
Pin Signal Name
Function
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