Table 6. LED codes
Diagnostic light codes
Problem description
Recommended Solution
1,1
TPM Detection Failure
Replace System Board
1,2
Unrecoverable SPI Flash Failure
Replace System Board
1, 5
EC unable to program i-Fuse
Replace 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
Motherboard covers 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 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
Motherboard/Chipset Error
Flash latest BIOS version. If problem persists, replace the
system board
2,7
LCD failure - SBIOS message
Flash latest BIOS version. If problem persists, 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
3,2
PCI of 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
Recovery Image found but invalid
Flash latest BIOS version. If problem persists, replace the
system board
3,5
EC ran into power sequencing failure
Replace the system board
3,6
Flash corruption detected by SBIOS
Replace the system board
3,7
Timeout waiting on ME to reply to HECI
message
Replace the system board
Camera status indicator:
Indicates whether the camera is in use.
•
Solid white — Camera is in use.
•
Off — Camera is not in use.
Caps Lock status indicator:
Indicates whether Caps Lock is enabled or disabled.
•
Solid white — Caps Lock enabled.
•
Off—Caps Lock disabled.
Hibaelhárítás
101
Summary of Contents for P44E
Page 1: ...Precision 7750 Service Manual Regulatory Model P44E Regulatory Type P44E001 May 2020 Rev A00 ...
Page 22: ...22 Szétszerelés és újbóli összeszerelés ...
Page 25: ...Szétszerelés és újbóli összeszerelés 25 ...
Page 66: ...66 Szétszerelés és újbóli összeszerelés ...
Page 75: ...Szétszerelés és újbóli összeszerelés 75 ...