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Table 2. System board jumper details
SERVICE_MODE
CMOS_CLR
PW_CLR
LED error code after replacing coin cell battery
After replacing the coin-cell battery, the system will not power on and the LED blinks 2-2 in amber. This is a known behavior
when the super I/O is reset to default. Press and hold the power button until the system powers on.
Working on your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless
otherwise noted, each procedure included in this document assumes that the following conditions exist:
● You have read the safety information that shipped with your computer.
● A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
NOTE:
Disconnect all power sources before opening the computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to the power source.
1-2 Short: Disable
1-2 Open: Default
3-4 Short: CMOS Clear
3-4 Open: Default
5-6 Short: Default
5-6 Open: Password: Reset
Field service information
13
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