50
USB Symptoms
Symptom
Corrective Procedure
•
USB device does not function
•
Check that the USB device is detected in Windows Device
Manager.
•
Reinstall the USB device driver.
•
Replace the mainboard.
Peripheral-Device Symptoms
Symptom
Corrective Procedure
•
USB ports do not work
•
COM ports do not work
•
Reseat the I/O cable.
•
Reinstall the drivers.
•
Replace the mainboard.
Boot Symptoms
Symptom
Corrective Procedure
•
System continually reboots on
power up
•
Restore the BIOS defaults.
•
Remove all I/O device drivers, then reinstall the drivers
one by one.
•
Reseat the SATA cable.
•
Reseat the memory card.
•
Reseat the power adapter.
•
Replace the mainboard.
Summary of Contents for A4-1-K
Page 1: ...POS Terminal A4 1 K A5 1 K A7 1 K Service Manual ...
Page 20: ...20 ...
Page 41: ...41 3 When installation is completed click Finish ...
Page 43: ...43 3 Click Next to continue 4 Click Next to continue ...
Page 44: ...44 5 Select Yes I want to restart my computer now Then click Finish to restart the system ...
Page 46: ...46 3 Select Yes I want to restart my computer now Then click Finish to restart the system ...