User`s manual

Chapter 5: Advanced Serverboard Setup
5-19
I
2
C Power Connector
This header is for I
2
C, which may be
used to monitor the status of the power
supply, fan and system temperature. See
the table on the right for pin defi nitions.
I
2
C Power Connector
(I
2
C_PWR)
Pin Defi nitions
Pin# Defi nition
1 SMB Clock
2 SMB Data
3 Power Fail
4 Ground
PWR SMB (J18)
Pin Defi nitions
Pin# Defi nition
1 Clock
2 Data
3 PWR Fail
4 Ground
SMB (I
2
C) Connector
System Management Bus (I
2
C)
Connector (J18) monitors power supply,
fan and system temperatures. See the
table on the right for pin defi nitions.
Trusted Platform Module Header
A Trusted Platform Module header
(JTPM1) provides TPM support to
enhance data integrity and system
security. Refer to the table on the right
for pin defi nitions.
Trusted Platform Module Header
(JTPM1)
Pin Defi nitions
Pin# Defi nition Pin# Defi nition
1 LPC Clock 2 Ground
3 LPC Frame# 4 Key
5 LPC Reset# 6 +5V (X)
7 LAD3 8 LAD2
9 +3.3V 10 LAD1
11 LAD0 12 Ground
13 SCL 14 SDAT
15 +3V Dual 16 SERIRQ (X)
17 Ground 18 CLKRUN (X)
19 LPCPD# (X) 20 LDRQ# (X)
SMBus Header
The header at SMBus is for the
System Management Bus. Connect the
appropriate cable here to utilize SMB on
the system. See the table on the right for
pin defi nitions.
SMB Header
(SMbus)
Pin Defi nitions
Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection