System Diagnostic Lights - Dell Vostro 3401 Service Manual

SupportAssist opens the basic screen on start. You can switch to the advanced screen using the icon at the bottom left of the
screen. The advanced screen shows detected devices in a tiled format. Specific tests can be included or excluded only in the
advanced mode. The Basic Screen has minimal controls which allows easy navigation for the user to start or stop the
diagnostics.

System diagnostic lights

Power and battery-status light
Indicates the power and battery-charge status.
Solid white—Power adapter is connected and the battery has more than 5% charge.
Amber—Computer is running on battery and the battery has less than 5% charge.
Off
● Power adapter is connected, and the battery is fully charged.
● Computer is running on battery, and the battery has more than 5% 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 3. 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
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
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
Recommended solutions
Replace the system board.
Replace the system board.
Check if the display cable (EDP) is seated
properly or pinched at the hinges. If problem
persists, replace either display cable (EDP) or
display assembly (LCD).
Check if the display cable (EDP) is seated
properly or pinched at the hinges. If problem
persists, replace either display cable (EDP) or
display assembly (LCD).
Replace the system board.
Disconnect all power source (AC, battery,
coin cell) and drain flea power by pressing &
holding down power button.
Run the Intel CPU diagnostics tools. If
problem persists, replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.
Confirm that the memory module is installed
properly. If problem persists, replace the
memory module.
Reset and swap memory modules amongst
the slots. If problem persists, replace the
memory module.
Reset and swap memory modules among the
slots. If problem persists, replace the memory
module.
Flash latest BIOS version. If problem persists,
replace the system board.
Troubleshooting 85