Recovering The Operating System; Real-Time Clock (Rtc Reset); Backup Media And Recovery Options - Dell Latitude 5430 Rugged Service Manual

Table 29. System-diagnostic lights (continued)
Blinking pattern
Green
5
6
7
1
2
3
4
5
6
7

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
www.dell.com/serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.

Real-Time Clock (RTC Reset)

The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell systems from No POST/No
Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.
Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for thirty (30)
seconds. The system RTC Reset occurs after you release the power button.
NOTE: If the power button is not held for at least 25 seconds or is held more than 40 seconds, the RTC reset process is
canceled.

Backup media and recovery options

It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes
multiple options for recovering Windows operating system on your Dell PC. For more information. see
Media and Recovery Options.
136 Troubleshooting
Problem description
Memory
System board or Chipset
Display
RTC power failure
PCI/Video
BIOS recovery 1
BIOS recovery 2
Power Rail Failure
SBIOS Flash Corruption
ME Error
Suggested resolution
Invalid memory installed
System board/chipset error
Display failure
Coin-cell battery failure
PCI/Video card/chip failure
Recovery image not found
Recovery image found but invalid
EC ran into power sequencing failure
Flash corruption detected by SBIOS
Timeout waiting on ME to reply to HECI
message
Dell Windows Backup