Specifications

126 007-4276-001
A: Technical Reference
On the baseboard, pins 1, 9, 15, and 17 are connected to SMI_L, NMI, SECURE_MODE,
and CHASSIS_INTRUSION. Some server systems do not monitor these signals.
Note: The type of connector (in, out, in/out, power, ground) indicated in Table A-27 is
described from the perspective of the baseboard.
Table A-27 Server Monitor Module Connector Pinout
Pin Signal Type Description-Implementation
1 SMI_L Out System management interrupt: not supported on SMM
2 I2C_SCL In I2C clock line
3 CONP_L Out Connector present: tied to ground on the baseboard
4 Reserved Reserved pin: NC on baseboard
5 PWR_CNTL_L In Power supply on/off control: allows SMM to control
system power
6 I2C_SDA In/Out I2C serial data line
7 5VSTNDBY Out +5 V standby: monitored by SMM to determine if AC
power is applied
8 Reserved Pulled up to 5 V through 10k on baseboard
9 NMI Out Non-maskable interrupt: not supported on SMM
10 HOST_AUX Out Baseboard voltage monitored by SMM card: connected to
3.3 V
11 RESET_L In Baseboard reset signal from SMM
12 GROUND Ground Ground
13 GROUND Ground Ground
14 Key No connect on baseboard
15 SECURE_MODE Out Secure mode indication: not supported on SMM
16 GROUND Ground Ground
17 CHASSIS_INTRUSION Out Chassis intrusion indication: not supported on SMM