System Diagnostic Lights - Dell Vostro 5502 Service Manual

System diagnostic lights

Battery-status light
Indicates the power and battery-charge status.
Solid white — Power adapter is connected and the battery has more than 5 percent charge.
Amber — Computer is running on battery and the battery has less than 5 percent charge.
Off
● Power adapter is connected, and the battery is fully charged.
● Computer is running on battery, and the battery has more than 5 percent charge.
● Computer is in sleep state, hibernation, or turned off.
The power and battery-status light blinks amber along with beep codes indicating failures.
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times
followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and associated problems.
Table 21. LED codes
Diagnostic light codes
1,1
1,2
1,3
1,4
1, 5
1, 6
1, 7
1, 8
1, 9
2,1
2,2
2,3
2,4
2,5
2,6
2,7
2,8
2,9
3,1
3,2
3,4
3,5
3,6
3,7
3,8
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
Generic catch-all for ungraceful EC code flow errors
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CPU failure
Motherboard covers BIOS corruption or ROM error
No Memory/RAM detected
Memory/RAM Failure
Invalid memory installed
Motherboard/Chipset Error
LCD failure - SBIOS message
LCD failure - EC detection of power rail failure
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CMOS battery failure
PCI of Video card/chip failure
Recovery Image found but invalid
EC ran into power sequencing failure
Flash corruption detected by SBIOS
Timeout waiting on ME to reply to HECI message
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Troubleshooting 89