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Appendix B Status Indicator LEDs 39
Hard Drive LEDs
FIGURE B-3 Hard Drive LEDs
Internal Status Indicator LEDs
The server has internal status indicators on the motherboard, and on the mezzanine
board. For motherboard locations, see
FIGURE B-4. For mezzanine board locations, see
FIGURE B-5.
■ The DIMM Fault LEDs indicate a problem with the corresponding DIMM. They
are located next to the DIMM ejector handles.
When you press the Press to See Fault button, if there is a problem with a DIMM,
the corresponding DIMM Fault LED flashes. See “DIMM Fault LEDs” on page 15
for details.
■ The CPU Fault LEDs indicate a problem with the corresponding CPU.
When you press the Press to See Fault button, if there is a problem with a CPU,
the corresponding CPU Fault LED flashes.
Note – The DIMM Fault and Motherboard Fault LEDs operate on stored power for
up to a minute when the system is powered down, even after the AC power is
disconnected, and the motherboard (or mezzanine board) is out of the system. The
stored power lasts for about half an hour.
■ The Motherboard Fault LED on the mezzanine board indicates that there is a
problem with the motherboard.
Figure Legend
1 Ready to remove LED: Blue – Service action is allowed
2 Fault LED: Amber – Service action is required
3 Status LED: Green – Blinks when data is being transferred
2
3
1