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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Table 2-5 Debug port (Suspend mode) error status (3/3)
LED Status Test item Contents
F13Ch
Measure for USB over current
Calculation of check sum of PnP RAM area Not work in suspending for boot
Acquires how to turn the power off
Resets by EC (when required)
Makes not to send Eject Power Off
command when turning the power off by the
date check of alarm power on
Prohibition of all SMI
Initializing of special register in suspend
Calculates the check sum of SMRAM and
stores it in SMRAM
Calculates the checksum of system BIOS in
the IRT side
Checksum does not match during IRT and
Runtime
Setting status of suspend completion
Prohibition of L1&L2
F13Dh
Power off Completion of BIOS
QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL] 2-31