Dell XPS 15 9510 Service Manual - Page 63

System diagnostic lights

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Table 20. BIST outcome LCD-BIST The LCD that flashes White, Red, Green, and Blue shows that the display is working fine and there is no fault with the LCD panel. 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 2,1 2,2 2,3 2,4 2,5 2,6 2,7 2,8 3,1 3,2 3,3 3,4 3,5 3,6 3,7 Problem description TPM detection failure SPI flash failure Short in Hinge cable OCP1 Short in Hinge cable OCP2 i-Fuse failure EC internal failure 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 Invalid memory installed System-board or chipset error Display failure Display failure - Power Rail Failure Coin-cell battery failure PCI, video card/chip failure Recovery image not found Recovery image found but invalid Power-rail failure System BIOS Flash incomplete Management Engine (ME) error Troubleshooting 63

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Table 20. BIST outcome
LCD-BIST
The LCD that flashes White, Red, Green, and Blue shows that the display is working fine and there is no fault with the LCD
panel.
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
Problem description
1,1
TPM detection failure
1,2
SPI flash failure
1,3
Short in Hinge cable OCP1
1,4
Short in Hinge cable OCP2
1,5
i-Fuse failure
1,6
EC internal failure
2,1
Processor failure
2,2
System board: BIOS or ROM (Read-Only Memory)
failure
2,3
No memory or RAM (Random-Access Memory)
detected
2,4
Memory or RAM (Random-Access Memory) failure
2,5
Invalid memory installed
2,6
System-board or chipset error
2,7
Display failure
2,8
Display failure - Power Rail Failure
3,1
Coin-cell battery failure
3,2
PCI, video card/chip failure
3,3
Recovery image not found
3,4
Recovery image found but invalid
3,5
Power-rail failure
3,6
System BIOS Flash incomplete
3,7
Management Engine (ME) error
Troubleshooting
63