System-Diagnostic Lights - Dell Inspiron 16 Plus 7640 Owner's Manual

System-diagnostic lights

This section lists the system-diagnostic lights of your Inspiron 16 Plus 7640.
Table 48. System-diagnostic lights
Amber
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
4
4
NOTE: Blinking pattern 3-3-3 on Lock LED (Caps-Lock or Num-Lock), Power button LED (without Fingerprint reader),
and Diagnostic LED indicates failure to provide input during LCD panel test on the "Dell SupportAssist Pre-boot System
Performance Check" diagnostics.
Camera status light: Indicates whether the camera is in use.
● Solid white—Camera is in use.
● Off—Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
110 Troubleshooting
Blinking pattern
White
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
2
3
4
5
6
7
1
2
Problem description
TPM detection failure
Unrecoverable SPI flash failure
Short in hinge cable tripped OCP1
Short in hinge cable tripped OCP2
EC unable to program i-Fuse
EC internal failure
Non-RPMC Flash on boot guard fused
system
Processor failure
System board: BIOS or ROM (Read-Only
Memory) failure
No memory or RAM (Random-Access
Memory) detected
Memory or RAM (Random-Access
Memory) failure
Memory or RAM (Random-Access
Memory) failure
System-board or chipset error
Display failure - SBIOS message
Display failure - EC detection of power
rail failure
PCI of video card/chip failure
BIOS recovery image not found
BIOS recovery image found but invalid
Power-rail failure
System BIOS Flash corruption.
Management Engine (ME) error
Memory or RAM (Random-Access
Memory) failure
Processor failure