The following table shows dierent light patterns and describes what they indicate.
Table 16. Diagnostics
Light pattern Problem description
2,1 CPU failure
2,2 System board: BIOS and ROM failure
2,3 No memory or RAM detected
2,4 Memory or RAM failure
2,5 Invalid memory installed
2,6 System board or chipset error
2,7 LCD failure
3,1 CMOS battery failure
3,2 PCI or video card or chip failure
3,3 Recovery image not found
3,4 Recovery image found but invalid
3,5 Power sequencing failure
3,6 Flash corruption detected by SBIOS
3,7 ME error
Camera status light: Indicates whether the camera is in use.
• Solid white — Camera is in use.
• O — Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
• Solid white — Caps Lock enabled.
• O — Caps Lock disabled.
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