System Event Log Troubleshooting Guide for EPSD
Platforms Based on Intel
®
Xeon
®
Processor E5 4600/2600/2400/1600/1400 Product Families
Power Subsystems
Revision 1.1 Intel order number G90620-002 31
Baseboard +1.5V P2 Memory AB
VDDQ
(BB +1.5 P2MEM AB)
This 1.5V line is supplied by the main board.
This 1.5V line is used by processor 2 memory slots A and B.
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 the DIMM.
Baseboard +1.5V P2 Memory CD
VDDQ
(BB +1.5 P2MEM CD)
This 1.5V line is supplied by the main board.
This 1.5V line is used by processor 2 memory slots C and D.
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 the DIMM.
Baseboard +1.8V Aux
(BB +1.8V AUX)
+1.8V AUX is supplied by the main board.
+1.8V AUX is used by the BMC and on-board NIC.
1. Ensure all cables are connected correctly.
2. If the issue remains, replace the board.
3. If the issue remains, replace the power supplies.
Baseboard +1.1V Stand-by
(BB +1.1V STBY)
+1.1V STBY is supplied by the main board.
+1.1V STBY is used by the Intel
®
C600 series Chipset.
1. Ensure all cables are connected correctly.
2. If the issue remains, replace the board.
3. If the issue remains, replace the power supplies.
Baseboard CMOS Battery
(BB +3.3V Vbat)
+3.3V Vbat is supplied by the CMOS battery when power is off and by the main board when power is on.
+3.3V Vbat is used by the CMOS and related circuits.
1. Replace the CMOS battery. Any battery of type CR2032 can be used.
2. If error remains (unlikely), replace the board.
Baseboard +1.35V P1 Low Voltage
Memory AB VDDQ
(BB +1.35 P1LV AB)
This 1.35V line is supplied by the main board.
This 1.35V line is used by processor 1 memory slots A and B.
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 the DIMM.