SEL Troubleshooting Guide

System Event Log Troubleshooting Guide for Intel
®
S5500/S3420 Series Server Boards Power Subsystems
Revision 1.1 Intel order number G74211-002 19
Sensor
Number
Sensor Name
Next Steps
13h
BB +1.5V P1 DDR3
This 1.5V line is supplied by the main board.
This 1.5V line is used by the memory on processor 1.
1. Ensure all cables are connected correctly.
2. Check the DIMMs are seated properly.
3. Cross test the DIMMs. If the issue remains with the DIMMs on this socket, replace the main board, otherwise replace the
DIMM.
14h
BB +1.5V P2 DDR3
This 1.5V line is supplied by the main board.
This 1.5V line is used by the memory on processor 2.
1. Ensure all cables are connected correctly.
2. Check the DIMMs are seated properly.
3. Cross test the DIMMs. If the issue remains with the DIMMs on this socket, replace the main board, otherwise replace the
DIMM.
15h
BB +1.8V AUX
+1.8V is supplied by the main board.
+1.8V is used by the onboard NIC and I/O hub.
1. Ensure all cables are connected correctly.
2. If the issue remains, replace the main board.
16h
BB +3.3V
+3.3V is supplied by the power supplies.
+3.3V is used by the PCIe and PCI-X slots.
1. Ensure all cables are connected correctly.
2. Reseat any PCI cards, and try them in other slots.
3. If the issue follows the card, swap it, otherwise, replace the main board.
4. If the issue remains, replace the power supplies.
17h
BB +3.3V STBY
+3.3V Stby is supplied by the main board.
+3.3V Stby is used by the BMC, Onboard NIC, IOH, and ICH.
1. Ensure all cables are connected correctly.
2. If the issue remains, replace the board.
3. If the issue remains, replace the power supplies.