Toshiba Qosmio F40 Maintenance Manual page 52

2 Troubleshooting
Procedure 5 Connector Check and Replacement Check
The HDD or system board may be faulty. Disassemble the computer following the steps
described in Chapter 4 and perform the following checks:
Check 1 Make sure the following connectors have been firmly connected to the
HDD, system board and CPU.
HDD
If any connector is loose or off, reconnect it firmly and return to Procedure 1.
If there is still an error, perform Check 2.
Check 2 The HDD may be damaged. Replace it with a new one following the
disassembling instructions in Chapter 4. If the problem persists, perform
Check 3.
Check 3 The System board may be damaged. Replace it with a new one following
the disassembling instructions in Chapter 4. If the problem persists,
perform Check 4.
Check 4 The CPU may be damaged. Replace it with a new one following the
disassembling instructions in Chapter 4.
2-14
System board
Qosmio F40/F45 Maintenance Manual
2.5 2.5-inch HDD
CPU