2.4 System Board Troubleshooting 2 Troubleshooting Procedures
QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-31
Table 2-5 Debug port (Suspend mode) error status (3/3)
LED Status Test item Contents
(F13Ah)
Power LED control during suspending
Isolates built-in LAN
Makes the power of sound off
F13Bh
Model-unique processing just before
suspending
Waiting for completion of dividing for
suspending
Stops dividing of extension command
for power off
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 turn the power off by
the date check of alarm power on
Prohibition of all SMIs
Initializing of special register in
suspending
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)
Setting status of suspend completion
Prohibition of L1 & L2
F13Dh
Power off (Completion of BIOS
process)
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