Status LEDs and Buttons
This section contains information for interpreting LED states.
Front-Panel LEDs
LED Name |
States |
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1 |
Power button/LED |
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2 |
Unit identification button/LED |
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3 |
System status LED |
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4 |
Fan status LED |
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5 |
Temperature status LED |
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6 |
Power supply status LED |
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7 |
Network link activity LED |
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8 SAS |
SAS/SATA drive fault LED
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9 SAS |
SAS/SATA drive activity LED |
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8 NVMe |
NVMe SSD drive fault LED
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9 NVMe |
NVMe SSD activity LED |
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10 |
CPU module power status LED |
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11 |
CPU module fault LED |
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DVD drive activity LED (optional DVD module not shown) |
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Rear-Panel LEDs
LED Name |
States |
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1 |
1-Gb/10-Gb Ethernet link speed (on both LAN1 and LAN2) These ports auto-negotiate link speed based on the link-partner capability. |
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2 |
1-Gb/10-Gb Ethernet link status (on both LAN1 and LAN2) |
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3 |
1-Gb Ethernet dedicated management link speed |
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4 |
1-Gb Ethernet dedicated management link status |
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5 |
Rear unit identification |
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6 |
Power supply status (one LED each power supply unit) |
AC power supplies:
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Internal Diagnostic LEDs
The system has the following internal fault LEDs to help with identifying a failing component:
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Each chassis fan module has a fault LED on top of the module. These fan LEDs operate only when the system is in standby power mode.
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The CPU module has internal fault LEDs for CPUs and DIMMs on the CPU module board. POST and runtime error detection routines are stored in on-board registers. The contents of the registers are preserved for a limited time by a supercap voltage source.
To operate the LEDs, press switch SW1 on the board after the CPU module is removed from the chassis.
1 |
CPU fault LEDs (one behind each CPU socket on the board).
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3 |
DIMM fault LEDs (one next to each DIMM socket on the board)
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2 |
Switch SW1 SW1 is labeled, " PRESS HERE TO SEE FAULTS". |
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