Basic Decoding of a SEL Record 
System Event Log Troubleshooting Guide for EPSD
 
Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600/1400 Product Families 
8  Intel order number G90620-002  Revision 1.1 
11b = Reserved 
[5:4] – 00b = Unspecified Event Data 3 
01b = Reserved 
10b = OEM code in Event Data 3 
11b = Reserved 
[3:0] – Offset from Event/Reading Type Code 
Event Data 2 
[7:4] – Optional OEM code bits or offset from “Severity” Event/Reading Type Code (0Fh if unspecified). 
[3:0] – Optional OEM code or offset from Event/Reading Type Code for previous event state (0Fh if unspecified). 
Event Data 3 – Optional OEM code. FFh or not present if unspecified. 
Table 3: OEM SEL Record (Type C0h-DFh) 
ID used for SEL Record access. 
[7:0] – Record Type 
C0h-DFh = OEM timestamped, bytes 8-16 OEM defined  
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. 
LS Byte first. The manufacturer ID is a 20-bit value that is derived from the IANA 
“Private Enterprise” ID. 
Most significant four bits = Reserved (0000b). 
000000h = Unspecified. 0FFFFFh = Reserved. 
This value is binary encoded. 
For example the ID for the IPMI forum is 7154 decimal, which is 1BF2h, which will be 
stored in this record as F2h, 1Bh, 00h for bytes 8 through 10, respectively.