Dell Vostro 3520 Service Manual page 117

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Table 11. System-diagnostic lights (continued)
Blinking pattern
Amber
2
2
2
2
2
2
2
3
3
3
3
3
3
White
Problem description
2
System board failure (included
BIOS corruption or ROM
3
No memory/RAM detected
4
Memory/RAM failure
5
Invalid memory installed
6
System board/Chipset Error
7
LCD failure (SBIOS message)
8
LCD failure (EC detection of
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
error)
power rail failure)
found
but invalid
Power rail failure
SBIOS.
Suggested resolution
Flash latest BIOS version
If problem persists,
replace the system board.
Confirm that the memory
module is installed
properly.
If problem persists,
replace the memory
module.
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.
Replace the LCD 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.
Troubleshooting
117

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