Dell Vostro 15 5510 Service Manual - Page 81

System diagnostic lights

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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. Blinking Pattern 1 1 1 2 1 5 1 6 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 3 1 Problem description Suggested resolution TPM detection failure Replace the system board. Unrecoverable SPI flash failure Replace the system board. EC unable to program i-Fuse Replace the system board. Generic catch-all for ungraceful EC code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing & holding down power button. CPU failure Run the Intel CPU diagnostics tools. If problem persists, replace the system board. System Board failure (included BIOS corruption or ROM error) Flash latest BIOS version. If problem persists, replace the system board. No Memory / RAM detected Confirm that the memory module is installed properly. If problem persists, replace the memory module. Memory / RAM failure Reset and swap memory modules amongst the slots. If problem persists, replace the memory module. Invalid memory installed Reset and swap memory modules amongst the slots. If problem persists, replace the memory module. System board / Chipset Error Replace the system board. LCD failure (SBIOS message) Replace the LCD module. LCD failure (EC detection of Replace the system board. power rail failure) CMOS battery failure Reset the CMOS battery connection. If problem persists, replace the RTC battery. Troubleshooting 81

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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.
Blinking Pattern
Problem description
Suggested resolution
1
1
TPM detection failure
Replace the system board.
1
2
Unrecoverable SPI flash
failure
Replace the system board.
1
5
EC unable to program i-Fuse
Replace the system board.
1
6
Generic catch-all for
ungraceful EC code flow
errors
Disconnect all power source
(AC, battery, coin cell) and
drain flea power by pressing &
holding down power button.
2
1
CPU failure
Run the Intel CPU diagnostics
tools. If problem persists,
replace the system board.
2
2
System Board failure
(included BIOS corruption or
ROM error)
Flash latest BIOS version. If
problem persists, replace the
system board.
2
3
No Memory / RAM detected
Confirm that the memory
module is installed properly. If
problem persists, replace the
memory module.
2
4
Memory / RAM failure
Reset and swap memory
modules amongst the slots. If
problem persists, replace the
memory module.
2
5
Invalid memory installed
Reset and swap memory
modules amongst the slots. If
problem persists, replace the
memory module.
2
6
System board / Chipset Error
Replace the system board.
2
7
LCD failure (SBIOS message)
Replace the LCD module.
2
8
LCD failure (EC detection of
power rail failure)
Replace the system board.
3
1
CMOS battery failure
Reset the CMOS battery
connection. If problem
persists, replace the RTC
battery.
Troubleshooting
81