Lenovo System x3750 M4 Installation And Service Manual page 619

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– CPU 1 VRD: Indicates a problem with either the voltage regulator for CPU1 or CPU 1 itself

– CPU 2 VRD: Indicates a problem with either the voltage regulator for CPU2 or CPU 2 itself

– DIMM 01-06 VRD: Indicates a problem with either the voltage regulator for DIMMs 1-6 or 1 or more

of the following components: DIMM1-DIMM6

– DIMM 07-12 VRD: Indicates a problem with either the voltage regulator for DIMMs 7-12 or 1 or

more of the following components: DIMM7-DIMM12

– DIMM 13-18 VRD: Indicates a problem with either the voltage regulator for DIMMs 13-18 or 1 or

more of the following components: DIMM13-DIMM18

– DIMM 19-24 VRD: Indicates a problem with either the voltage regulator for DIMMs 19-24 or 1 or

more of the following components: DIMM19-DIMM24

– MainBrd ENET VRD: Indicates a problem with either the voltage regulator for the onboard Ethernet

– MainBrd SAS VRD: Indicates a problem with either the voltage regulator for the onboard SAS or

the RAID cache card

– MainBrd VRD: Indicates a problem with a voltage regulator for the system board

– System VRD: Indicates a problem with either a voltage regulator for the system board or the

microprocessor and memory expansion tray

1. Check the IMM Web event log. This event may be a symptom of an earlier error.

2. Depending on the error perform the following steps.

For a CPU 1 VRD or CPU 2 VRD error:

1. Replace system board.

2. Replace affected microprocessor.

For a DIMM 01-06 VRD, DIMM 07-12 VRD, DIMM 13-18 VRD, or DIMM 19-24 VRD error:

1. Replace DIMM(s) associated with error.

2. Replace system board.

For a MainBrd ENET VRD error:

1. Replace the ML2 Ethernet Adapter if installed.

2. Replace system board.

For a MainBrd SAS VRD error:

1. Replace the RAID cache card if installed.

2. Replace system board.

For a MainBrd VRD error:

1. Replace system board.

For a System VRD error:

1. Replace microprocessor and memory expansion tray if installed.

2. Replace system board.

Appendix D. Integrated management module II (IMM2) error messages

Troubleshooting