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A-5ASUS TW300-E5/PI4
A.4 Simplexes
Some problems that you may encounter are not due to defects on the system or
the components. These problems only requires simple troubleshooting actions
that you can perform by yourself.
Problem Action
The power LED on the workstation or
on the monitor do not light up
1. Check if the power cable is properly
connected to the power connector in the
system rear panel.
2. Ensure that the power cables are
connected to a grounded power outlet.
3. Press the power button to make sure that
the system is turned on.
The keyboard does not work Check if the keyboard cable is properly
connected to the PS/2 keyboard port.
The mouse does not work Check if the mouse cable is properly
connected to the mouse port.
The system does not perform power-
on self tests (POST) after it was
turned on
1. Check the memory modules and make sure
you installed the DIMMs the system supports.
2. Ensure that the DIMMs are properly
installed on the sockets.
The system continuously beeps after
it was turned on.
1. Check the memory modules and make sure
you installed supported DIMMs.
2. Ensure that the DIMMs are properly
installed on the sockets.
The message “Non-system disk or
disk error” appears
1. Check if a bootable HDD is active.
2. Check if the HDDs are properly
installed.
Network connection not available 1. Ensure that the network cable is connected
to the LAN port on the rear panel.
2. Ensure that you have installed the LAN
drivers from the support CD.