System Event Log Troubleshooting Guide for EPSD
 
Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600/1400 Product Families 
Memory Subsystem 
Revision 1.1  Intel order number G90620-002  71 
Event Direction and 
Event Type 
[7] Event direction 
0b = Assertion Event 
1b = Deassertion Event 
[6:0] Event Type = 09h (digital Discrete) 
[7:6] – 10b = OEM code in Event Data 2 
[5:4] – 10b = OEM code in Event Data 3 
[3:0] – Event Trigger Offset as described in Table 59 
RAS Configuration Error Type 
[7:4] = Reserved 
[3:0] = Configuration Error 
0 = None 
3 = Invalid DIMM Configuration for RAS Mode 
All other values are reserved. 
RAS Mode Configured 
[7:4] = Reserved 
[3:0] = RAS Mode 
0h = None (Independent Channel Mode) 
1h = Mirroring Mode 
2h = Lockstep Mode 
4h = Rank Sparing Mode 
Table 59: Memory RAS Configuration Status Sensor – Event Trigger Offset – Next Steps 
RAS configuration 
enabled. 
User enabled mirrored channel mode 
in setup. 
Informational event only. 
RAS configuration 
disabled. 
Mirrored channel mode is disabled 
(either in setup or due to unavailability 
of memory at post, in which case post 
error 8500 is also logged). 
1.  If this event is accompanied by a post error 8500, there was a problem 
applying the mirroring configuration to the memory. Check for other errors 
related to the memory and troubleshoot accordingly. 
2.  If there is no post error, mirror mode was simply disabled in BIOS setup and 
this should be considered informational only.