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Sliding door that covers the optical drive will not open.
Cause
Solution
The sliding door is locked.
Use the provided key to unlock the door then slide the door
down.
Not getting the correct power on the COM port.
Cause
Solution
COM port jumpers are not set correctly.
See “Configuring Power to a Serial Port” in the
Hardware
Reference Guide
for instructions on setting the COM port
jumpers for power.
Solving Power Problems
Common causes and solutions for power problems are listed in the following table.
Table D-2
Solving Power Problems
Power supply shuts down intermittently.
Cause
Solution
Power supply will not turn on because of internal power supply
fault.
Contact an authorized service provider to replace the power
supply.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two
second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heatsink is not properly attached to the processor.
1.
Ensure that the computer air vents are not blocked.
2.
Open hood, press power button, and see if the system fan
spins. If the system fan is not spinning, make sure the
fan's cable is plugged onto the system board header.
3.
If fan is plugged in, but is not spinning, then replace the
fan assembly.
4.
Contact an authorized reseller or service provider.
Powered POS peripherals do not power on.
Cause
Solution
Power supply cable not connected to powered USB card.
Make sure power supply cable is connected to powered USB
card.
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Appendix D Troubleshooting Without Diagnostics
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