IBM xSeries 230 6RY Hardware Maintenance Manual page 54

Table 9. Diagnostics panel LEDs
LED Description
PS1 Power supply 1 failure.
PS2 Power supply 2 failure.
PS3 Power supply 3 failure.
NON Non-redundant power.
OVER Overspecification. The system has exceeded the power capabilities of the installed power
supply units.
NMI Non-maskable-interrupt occurred.
TEMP System temperature exceeded maximum rating.
FAN A fan failed or is operating slowly.
MEM Memory failure. One or more memory DIMMS have failed.
CPU Microprocessor failure. One or both microprocessors have failed.
PCI 1 Error on primary PCI channel (A) or system board.
PCI 2 Error on secondary PCI channel (B) or system board.
VRM Error on voltage regulator module or on integrated voltage regulator.
DASD1 The hot-swap disk drive backplane on SCSI channel A has failed.
Not used.
DASD2
46
Hardware Maintenance Manual: xSeries 230 Models 6RY, 61Y
1
Secondary microprocessor failure (CR7)
2
Primary microprocessor failure (CR1)
3
Voltage regulator module (VRM2) failure (CR16)
4
Integrated voltage regulator (VRM1) failure (CR4)
5
Diagnostics panel
6
Advanced System Management Processor error (CR70)
7
Power-on (CR56)
8
DIMM1 failure (CR23)
9
DIMM2 failure (CR28)
10
DIMM3 failure (CR18)
11
DIMM4 failure (CR20)