SEL Troubleshooting Guide

System Event Log Troubleshooting Guide for PCSD Platforms Based on Intel
®
Xeon
®
Processor E5 4600/2600/2400/1600/1400 Product Families
Processor Subsystem
Revision 1.2 Intel order number G90620-003 63
The QPI Error sensors are reported by the BIOS SMI Handler to the BMC so the Generator ID will be 33h.
6.4.1 QPI Link Width Reduced Sensor
BIOS POST has reduced the QPI Link Width because of an error condition seen during initialization.
Table 52: QPI Link Width Reduced Sensor Typical Characteristics
Byte
Field
Description
8
9
Generator ID
0001h = BIOS POST
11
Sensor Type
13h = Critical Interrupt
12
Sensor Number
09h
13
Event Direction and
Event Type
[7] Event direction
0b = Assertion Event
1b = Deassertion Event
[6:0] Event Type = 77h (OEM Discrete)
14
Event Data 1
[7:6] – 10b = OEM code in Event Data 2
[5:4] – 00b = Unspecified Event Data 3
[3:0] – Event Trigger Offset
1h = Reduced to ½ width
2h = Reduced to ¼ width
15
Event Data 2
0-3 = CPU1-4
16
Event Data 3
Not used
6.4.1.1 QPI Link Width Reduced Sensor – Next Steps
If the error continues:
1. Check the processor is installed correctly.
2. Inspect the socket for bent pins.
3. Cross test the processor. If the issue remains with the processor socket, replace the main board, otherwise the processor.