M-Bist; Diagnostics - Dell Latitude 5300 Service Manual
2-in-1 chrome
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Also See for Latitude 5300:
- Service manual (123 pages) ,
- Setup and specifications (49 pages) ,
- Setup and speci?cations manual (44 pages)
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Table 13. Diagnostic LEDs
Blinking
Problem Description
Pattern
Amber White
2
1
CPU failure
2
2
System board failure (included BIOS corruption or ROM error)
2
3
No memory/ RAM detected
2
4
Memory/ RAM failure
2
5
Invalid memory installed
2
6
System board/ Chipset error
2
7
LCD failure
2
8
LCD Power rail failure
3
1
CMOS battery failure
3
2
PCI or Video card/ chip failure
3
3
BIOS Recovery Image not found
3
4
BIOS Recovery Image found but invalid
NOTE:
For diagnostics pattern 2-amber, 8-white connect an external monitor to isolate between system board or
graphics controller failure.
M-BIST
M-BIST(Built In Self-Test) diagnostics tool, featuring improved accuracy in system board failures.
NOTE:
M-BIST can be manually initiated before POST(Power On Self Test).
How to run M-BIST
NOTE:
M-BIST must be initiated on the system from a power-off state that is either connected to AC power or with
battery only.
1. Press and hold both the M key on the keyboard and the power button to initiate M-BIST.
2. With both the M key and the power button that is held down, the battery indicator LED may exhibit two states:
a. OFF: No fault detected with the system board
b. AMBER: Indicates a problem with the system board
Diagnostics
This chapter details the built in troubleshooting features to diagnose the Dell Latitude 5300 2-in-1 Chrome systems. It also lists the
invoking instructions along with related information for each diagnostics method.
ePSA Diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device
groups allowing you to:
Suggested Resolution
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.
Replace the memory module.
Replace the memory module.
Replace the system board.
Replace the LCD module.
Replace the system board
Replace the RTS battery.
Replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.
Troubleshooting
107
- Quick Links:
- Sim Card Tray
- Wwan Card
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