Toshiba PORTEGE M780 Maintenance Manual page 88

Troubleshooting Procedures
Check 2 The SATA ODD may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 3.
Check 3 System board may be faulty. Replace it with new one following the instructions in
Chapter 4, Replacement Procedure.
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[CONFIDENTIAL] PORTEGE M780 Maintenance Manual (960-809)