Table of Contents
Advertisement
Table 9. Diagnostic light codes (continued)
Diagnostic light codes (Amber, White)
2,5
2,6
3,1
3,2
3,3
3,4
3,5
3,6
4,1
4,2
Recovering the operating system
When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell
SupportAssist OS Recovery.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating
system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It
enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary
operating system due to software or hardware failures.
For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at
serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.
WiFi power cycle
About this task
If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed.
The following procedure provides the instructions on how to conduct a WiFi power cycle:
NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.
Steps
1. Turn off your computer.
2. Turn off the modem.
3. Turn off the wireless router.
4. Wait for 30 seconds.
5. Turn on the wireless router.
6. Turn on the modem.
7. Turn on your computer.
Flea power release
About this task
Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been
removed. The following procedure provides the instructions on how to conduct flea power release:
Problem description
Invalid memory installed
System board/Chipset Error
CMOS battery failure
PCI of Video card/chip failure
BIOS Recovery 1: BIOS recovery image not found
BIOS Recovery 2: Recovery image found but invalid
Power Rail Failure: EC ran into power sequencing failure
Flash corruption detected by SBIOS
Memory DIMM power rail failure
CPU Power cable connection issue
www.dell.com/
103
Advertisement
Table of Contents
