Kontron S5500 SEL Troubleshooting - Manual (Page 59)

Memory subsystem System Event Log Troubleshooting Guide for Intel® S5500/S3420 series Server Boards
50 Intel order number G74211-001 Revision 1.0
9. Memory subsystem
Intel ® servers report memory errors, status, and configuration in the SEL.
9.1 Memory RAS Mirroring and Sparing
“Memory RAS Configuration Status” refers to the BIOS sending the current RAS mode and RAS operational state to the BMC to log into the
SEL as a SEL record. This allows a remote software/application to query and retrieve the system memory state.
The memory configuration state sensors are “virtual” sensors. In other words, these sensors are owned and controlled completely by the BIOS,
independently of the BMC.
The RAS configuration and state definitions are aligned with the definitions within the Intelligent Platform Management Interface Specification,
Version 2.0. Accordi
ngly, these sensors are read as “Status” and “Redundancy” sensors (Event/Reading Type 0x09 and 0x0B respectively).
 Sensor Number 12h (Event Type 0x09) – Mirroring Configuration Status
 Sensor Number 01h (Event Type 0x0B) – Mirroring Redundancy State
 Sensor Number 13h (Event Type 0x09) – Sparing Configuration Status
 Sensor Number 11h (Event Type 0x0B) – Sparing Redundancy State
9.1.1 Mirroring Configuration Status
This sensor provides the Mirroring mode RAS configuration status.
Table 52: Mirroring Configuration Status Sensor Typical Characteristics
Byte Field Description
8
9
Generator ID 0001h = BIOS POST
11 Sensor Type 0ch = Memory
12 Sensor Number 12h