No. | LED indicator | Color | LED status | Description | |
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4 | System status | Blue | Random blink | • | System is booting |
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| • System is shutting down | |
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| |
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| On | System initialize operation completed. | |
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| |
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| Blue and | Random blink | System is booting from a USB device (Reserved for | |
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| purple |
| BIOS update while boot block has been active) | |
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| |
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| Red | On | May indicate the following states: | |
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| • | System failure |
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| • | HDD failure |
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| • | SATA controller failure |
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| • | USB controller failure |
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| • | LAN controller failure |
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| • | Fan failure |
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| • | Memory failure |
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| • Boot device not found | |
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| Refer to “System Status Error Codes” on page 50 for | |
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| more information. | |
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| |
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| Random blink | System recovery or reset is in progress | |
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5 | USB device | Blue | On | • USB storage device is connected to the USB port | |
| backup |
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| • | Backup completed |
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| ||
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| |
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| Random blink | System is backing up files from a USB storage device | |
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| None | Off | USB storage device unmounted | |
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6 | HDD access | Blue | Blink | HDD is in use | |
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| |
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| None | Off | No HDD activity | |
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6 | Chapter 1 |
