Dell Vostro 3401, Service Manual

Page: 85 / 87

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 Problem description Recommended solutions
1,1 TPM detection failure Replace the system board.
1,2 Unrecoverable SPI Flash failure Replace the system board.
1,3 Short in hinge cable tripped OCP1 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).
1,4 Short in hinge cable tripped OCP2 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).
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 Processor failure Run the Intel CPU diagnostics tools. If
problem persists, replace the system board.
2,2 System board: BIOS or ROM (Read-Only
Memory) failure Flash latest BIOS version. If problem persists,
replace the system board.
2,3 No memory or RAM (Random-Access Memory)
detected Confirm that the memory module is installed
properly. If problem persists, replace the
memory module.
2,4 Memory or RAM (Random-Access Memory)
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 among the
slots. If problem persists, replace the memory
module.
2,6 System-board or chipset error Flash latest BIOS version. If problem persists,
replace the system board.
Troubleshooting 85