System diagnostic lights
Power-supply diagnostics light
Indicates the power-supply state.
Hard-drive activity light
Turns on when the computer reads from or writes to the hard drive.
Table 6. Diagnostic-light codes
Diagnostic light codes
(Amber, white)
Problem description
Recommended solutions
1,2
Unrecoverable SPI Flash Failure
2,1
CPU failure
Run the Intel CPU diagnostics tools. If problem
persists, replace the system board.
2,2
System board failure, corrupt BIOS, 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 the memory module. If problem persists, replace
the memory module.
2,5
Invalid Memory installed
Reset the memory module. If problem persists, replace
the memory module.
2,6
System board error, chipset error, clock
failure, gate A20 failure, super I/O failure,
keyboard controller failure
Flash latest BIOS version. If problem persists, replace
the system board.
3,1
CMOS battery failure
Reset the CMOS battery connection. If problem
persists, replace the RTS battery.
3,2
PCIe or video card/chip failure
Replace the system board.
3,3
BIOS recovery image not found
Flash latest BIOS version. If problem persists, replace
the system board.
3,4
BIOS recovery image found but invalid
Flash latest BIOS version. If problem persists, replace
the system board.
3,5
Power Rail Failure
EC ran into power sequencing failure. If problem
persists, replace the system board.
3,6
Paid SPI volume error
Flash corruption detected by system BIOS. If problem
persists, replace the system board.
3,7
Intel ME (Management Engine) error
Timeout waiting on Management Engine to reply to
HECI message. If problem persists, replace the system
board
4,2
CPU power cable connection issue
Diagnostic error messages
Table 7. Diagnostic error messages
Error messages
Description
AUXILIARY DEVICE FAILURE
The touchpad or external mouse may be faulty. For an
external mouse, check the cable connection. Enable the
Pointing Device
option in the System Setup program.
BAD COMMAND OR FILE NAME
Ensure that you have spelled the command correctly, put
spaces in the proper place, and used the correct path name.
68
Troubleshooting
Summary of Contents for Vostro 3881
Page 1: ...Vostro 3881 Service Manual Regulatory Model D29M Regulatory Type D29M002 August 2021 Rev A01 ...
Page 3: ...1 Major components of your system 3 ...
Page 4: ...Major components of your system 4 Major components of your system ...
Page 43: ...Disassembly and reassembly 43 ...
Page 60: ...60 Disassembly and reassembly ...
Page 63: ...Disassembly and reassembly 63 ...