18
Installing the Motherboard
CASE: Chassis Intrusion Detect Header
Short
Chassis cover is removed
Open
Chassis cover is closed
This detects if the chassis cover has been removed. This function needs a chassis
equipped with intrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function
TPM: TPM module header
Trusted Platform Module (TPM) is a published specification detailing a microntroller
that can store secured information, and implementations of that specification.
1
TPM_CLK
2
GND
3
LFRAME#
4
KEY
5
LREST#
6
SMBDATA
7
LAD3
8
LAD2
9
VCC3
10
LAD1
Pin
Signal Name Pin Signal Name
11 LAD0
12 GND
13 RESERVE0
14 RESERVE1
16 SERIRQ
17 GND
18 GND
19 LPCPD#
20 SMBCLK
15 VCC3_DUAL
LPT: Onboard parallel port header
This is a header that can be used to connect to the printer, scanner or other devices.
1
STROBE
14
AFD
2
PD0
15
ERROR
3
PD1
16
PRNINIT
4
PD2
17
SLIN
5
PD3
18
Ground
6
PD4
19
Ground
7
PD5
20
Ground
Pin Signal Name Pin Signal Name
8
PD6
21
Ground
9
PD7
22
Ground
10
ACK
23
Ground
11
BUSY
24
Ground
12
PE
25
Ground
13
SLCT
26 Key
