Dell Latitude E7440 LED POST Codes Diagnostic Indicators


How to identify LED Light codes:

When a laptop or computer first powers on, it goes through an initial set of diagnostic tests to make sure vital components are preforming correctly. These tests are called POST or Power On Self Test. When a test fails, the user is notified via POST codes, Light codes, or Beep codes. For diagnosing LED light codes you need to:
  • Power on the laptop or restart it if it is already on.
  • Identify the correct flashing light sequence.

How to identify LED Light codes:

When a laptop or computer first powers on, it goes through an initial set of diagnostic tests to make sure vital components are preforming correctly. These tests are called POST or Power On Self Test. When a test fails, the user is notified via POST codes, Light codes, or Beep codes. For diagnosing LED light codes you need to:
  • Power on the laptop or restart it if it is already on.
  • Identify the correct flashing light sequence.
Dell Latitude E7440 LED Light Codes
LED Light Code Component Causing No POST Possible Solution(s)
Storage_Power_Wifi_LED Motherboard / System Board Fault
  • Replace the motherboard / system board.
Power_LED RAM Memory Fault
  • Reseat the memory sticks.
  • Replace the memory sticks.
  • Replace the motherboard / system board.
Storage_LED CPU Processor Fault
  • Reseat the CPU.
  • Replace the CPU.
  • Replace the motherboard / system board.
Power_Wifi_LED RAM Not Detected
  • Install the memory sticks.
  • Reseat the memory sticks.
  • Replace the memory sticks.
  • Replace the motherboard / system board.
Storage_Power_WifiOff_LED Hard Drive Fault / Option ROM Fault
  • Unplug bootable devices.
  • Reseat hard drive.
  • Replace hard drive.
Storage_Power_LED Video Card Fault
  • Replace the video card.
  • Replace the motherboard / system board.
Storage_PowerOff_Wifi_LED USB Controller Fault
  • Unplug the USB devices.
  • Replace the motherboard / system board.
Storage_Wifi_LED LCD Screen Fault
  • Reseat the LCD cable.
  • Replace the LCD screen.
  • Replace the motherboard / system board.

Topics: Dell Latitude Repair Manuals Dell Laptop Repair Dell Repair Manuals LED POST Codes Latitude E7440

Join the conversation!

2 Responses to Dell Latitude E7440 LED POST Codes Diagnostic Indicators

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.