SEL Troubleshooting Guide

Basic Decoding of a SEL Record
System Event Log Troubleshooting Guide for Intel® S5500/S3420 Series Server Boards
4 Intel order number G74211-002 Revision 1.1
2. Basic Decoding of a SEL Record
The System Event Log (SEL) record format is defined in the IPMI Specification. The following
section provides a basic definition for each of the fields in a SEL. For more details see the IPMI
Specification.
The definitions for the standard SEL can be found in Table 1.
The definitions for the OEM defined event logs can be found in Table 3 and Table 4.
2.1 Default Values in the SEL Records
Unless otherwise noted in the event record descriptions the following are the default values in
all SEL entries.
 Byte [3] = Record Type (RT) = 02h = System event record
 Byte [9:8] = Generator ID = 0020h = BMC Firmware
 Byte [10] = Event Message Revision (ER) = 04h = IPMI 2.0
Table 1: SEL Record Format
Byte
Field
Description
1
2
Record ID
(RID)
ID used for SEL Record access.
3
Record Type
(RT)
[7:0] – Record Type
02h = System event record
C0h-DFh = OEM timestamped, bytes 8-16 OEM defined (See Table 3)
E0h-FFh = OEM non-timestamped, bytes 4-16 OEM defined (See Table 4)
4
5
6
7
Timestamp
(TS)
Time when event was logged. LS byte first.
Example: TS:[29][76][68][4C] = 4C687629h = 1281914409 = Sun, 15 Aug 2010
23:20:09 UTC
Note: There are various websites that will convert the raw number to a date/time.