IBM System x3610, Problem Determination And Service Manual

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Table 3. System-board LEDs (continued)
LED Description
5v standby power LED Standby power for 5v circuits and devices is present (the 5v
standby power rail is active).
Platform reset LED System board reset is active.
Clock chip power LED Power good is asserted to the clock chip (the real-time clock
has power).
S5 state LED The server is in the S5 state (ac power is present but the
server is not turned on).
Microprocessor 1 power
LED The socket for microprocessor 1 is receiving power.
Microprocessor 1 error LED An internal error has occurred on microprocessor 1 (CPU0).
Microprocessor 2 error LED An internal error has occurred on microprocessor 2 (CPU1).
Microprocessor 2 power
LED The socket for microprocessor 2 is receiving power.
BMC power 1.2 v LED The baseboard management controller (BMC) is receiving 1.2
v power. (The 1.2 v standby power rail is good; a stable 1.2 v
rail is available.)
BMC power DDRV LED The BMC is receiving DDR power. (The 2.5 v standby power
rail is good; a stable 2.5 v rail is available.)
Hard disk drive backplane LEDs
The following illustration shows the light-emitting diodes (LEDs) on the hard disk
drive backplane.
Hard disk drive 1
power LED Hard disk drive 4
power LED
Hard disk drive 2
power LED Hard disk drive 5
power LED
Hard disk drive 3
power LED Hard disk drive 6
power LED
Table 4. Hard disk drive backplane LEDs
Power LEDs Description
Flashing amber The hard disk drive in the associated bay is powering up or is
being built as part of a RAID configuration.
Flashing green The hard disk drive is active (reading or writing data)
Off The drive is not receiving power, the drive is not functioning,
or a drive is not installed in the bay.
Chapter 1. Introduction
13