2.6  2.5” HDD Troubleshooting  2  Troubleshooting Procedures 
Satellite A50S/TECRA A3X  Maintenance Manual (960-534)            [CONFIDENTIAL]  2-33 
Procedure 2  Message Check 
When the power is turned on, the system performs the Initial Reliability Test (IRT) 
installed in the BIOS ROM. When the test detects an error, an error message is displayed 
on the screen. 
Make sure of no floppy disk in the FDD. Turn on the computer and check the message on 
the screen. When an OS starts from the 2.5” HDD, go to Procedure 3. Otherwise, start with 
Check 1 below and perform the other checks as instructed. 
Check 1  If any of the following messages appear, go to Procedure 3. If the following 
messages do not appear, perform Check 2. 
HDC ERROR  
or 
HDD #X ERROR (After 5 seconds this message will disappear.)  
Check 2  If either of the following messages appears, go to Check 3.  If the following 
messages do not appear, perform Check 5. 
Insert system disk in drive 
Press any key when ready ..... 
   or 
Non-System disk or disk error 
Replace and press any key when ready 
Check 3  Check SETUP to see whether the Hard Disk option is set to Not used. If it is set 
to Not used, choose another setting and return to Check 1. If it is not set to Not 
used, go to Check 4. 
Check 4  Using the SYS command of the MS-DOS, transfer the system to the 2.5” HDD. 
If the system is not transferred, go to Procedure 3. Refer to the MS-DOS 
Manual for detailed operation. 
If the following message appears on the display, the system program has been 
transferred to the HDD. 
System Transferred 
If an error message appears on the display, perform Check 5. 
Check 5  The 2.5” HDD and the connector of the system board may be disconnected 
(Refer to the steps described in Chapter 4, Replacement Procedures for 
disassembling.). Insert the connectors firmly. If they are firmly connected, go to 
Procedure 3.