632 Troubleshooting Procedures 
 
Satellite A350, SATEGO A350, EQUIUM A350 Series Maintenance Manual 
   63 
 
Figure 2-24 E-SATA troubleshooting process  
To determine if the computer’s E-SATA system is functioning properly, perform the 
following procedures. Figure 2-24 outlines the process. Start with Procedure 1 and continue 
with the other procedures as instructed. 
Procedure 1:  E-SATA device check 
Procedure 2:  Diagnostic check 
Procedure 3:  Connection and replacement check 
Procedure 1  E-SATA device check 
Connect an E-SATA device to the computer’s E-SATA port, then boot the computer for 
Windows Vista. The computer should automatically detect the E-SATA device. Check 
whether the device can transmit data to the computer. 
If the device is able to communicate with the computer, the problem may be intermittent or 
connections may be faulty. Go to Procedure 2.  
If communication is impaired, there may be a faulty connection. Go to Procedure 3. 
Procedure 2  Diagnostic check 
Run the Diagnostic Program, which will automatically execute the E-SATA port test for 
transmission, Tests and Diagnostics for more information on how to run the program. 
If an error is located, go to Procedure 3.  If an error does not occur, the E-SATA port is 
functioning properly. 
Procedure 3  Connection and replacement check 
The transmission cable may be damaged or the connections may be loose. Perform Check 1: 
Check 1  Make sure the transmission cable is firmly plugged into both the E-SATA -
compatible device and the E-SATA port of the computer. If the cable is connected 
correctly, go to Check 2. 
Check 2  Make sure the E-SATA port is firmly secured to the system board of the 
computer. If the malfunction persists, go to Check 3. 
Check 3  The transmission cable may be damaged. Replace with a good cable. If the 
malfunction persists, go to Check 4