Recovering The Operating System - Dell OptiPlex 3090 Small Form Factor Service Manual

Table 21. States Under Host BIOS Control (continued)
Amber LED state
2
2
3
3
3
3
3
3
3

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.
82 Troubleshooting
White LED state
6
7
1
2
3
4
5
6
7
System state
BIOS state 2
BIOS state 3
BIOS state 4
BIOS state 5
BIOS state 6
BIOS state 7
BIOS state 8
BIOS state 9
BIOS state 10
Notes
BIOS Post code (Old LED
pattern 0010) CPU config or
CPU failure.
BIOS Post code (Old LED
pattern 0011) MEM config
in process. Appropriate mem
modules detected but failure
has occurred.
BIOS Post code (Old LED
pattern 0100) Combine PCI
device config or failure with
video sub sytem config or
failure. BIOS to eliminate 0101
video code.
BIOS Post code (Old
LED pattern 0110) Combine
storage and USB config or
failure. BIOS to eliminate 0111
USB code.
BIOS Post code (Old LED
pattern 1000) MEM config, no
memory detected.
BIOS Post code (Old
LED pattern 1001) Fatal
Motherboard error.
BIOS Post code (Old LED
pattern 1010) Mem config,
modules incompatible or
invalid config.
BIOS Post code (Old
LED pattern 1011) combine
"Other pre-video activity and
resource configuration codes.
BIOS to eliminate 1100 code.
BIOS Post code (Old LED
pattern 1110) Other pre-post
activity, routine subsequent to
video init.