Recovering The Operating System - Dell Precision 5860 Tower Service Manual

Table 21. System-diagnostic lights (continued)
Blinking pattern
Amber
2
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.
136 Troubleshooting
White Problem description
4 Memory/RAM failure
5 Invalid memory installed
6 System board/Chipset Error
1 CMOS battery failure
2 PCI or Video card/chip failure
3 BIOS Recovery image not
4 BIOS Recovery image found
5
6 Flash corruption detected by
7 Timeout waiting on ME to
reply to HECI message.
found
but invalid
Power rail failure
SBIOS.
Suggested resolution
●
Reset and swap memory
modules among the slots.
● If problem persists,
replace the memory
module.
● Reset and swap memory
modules among the slots.
● If problem persists,
replace the memory
module.
Replace the system board.
● Reset the main battery
connection.
● If problem persists,
replace the main 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.
Replace the system board.
● Press power button for
over 25 seconds to do
RTC reset. If problem
persists, replace the
system board.
● Disconnect all power
source (AC, battery, coin
cell) and drain flea power
by pressing and holding
down power button 3~5
seconds to ensure all
power are drained.
● Run "BIOS recovery from
USB", and the instructions
are in the website Dell
support.
● If problem persists,
replace the system board.
Replace the system board.