Ciara-tech Discovery - 8.5: Solving Power Supply Problems

Ciara Enterprise/Discovery 945GTP
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8.5: Solving Power Supply Problems
Solving Power Supply Problems
Problem Cause Solution
Power supply shuts down
intermittently.
Voltage selector switch on rear
of computer chassis not
switched to correct line voltage
(115V or 230V)
Select the proper AC voltage using the
selector switch. (See Figure 4.2 of the
Guide)
Power supply will not turn on
because of internal power
supply fault.
Contact Ciara Technology for the
replacement of the power supply.
Computer powered off
automatically and the Power LED
flashes Red two times, once every
second, followed by a two second
pause.
Processor thermal protection
activated: A fan may be blocked
or not turning.
OR
The heatsink/fan assembly is
not properly attached to the
processor.
1. Ensure that the computer air vents are
not blocked and the processor-cooling
fan is running.
2. Open hood, press the power button,
and see if the processor fan spins. If
the processor fan is not spinning,
make sure the fan's cable is plugged
onto the system board header. Ensure
the fan is fully/properly seated or
installed.
3. If fan is plugged in and seated
properly, but is not spinning, then
replace the processor fan. (See article
7.3 of this Guide)
4. Reseat processor heatsink and verify
that the fan assembly is properly
attached.
Power LED flashes Red, once
every two seconds.
OR
Power LED flashes Red four
times, once every second,
followed by a two second pause
Power failure (power supply is
overloaded)
1. Check that the voltage selector, located
on the rear of the power supply, is set to
the appropriate voltage. Proper voltage
setting depends on your region. (See
Figure 4.2)
2. Open the hood (See article 7.2) and
ensure the 4-wire power supply cable is
seated into the connector on the system
board
3. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion cards).
Power on the system. If the system
enters the POST, then power off and
replace one device at a time and repeat
this procedure until failure occurs.
Replace the device that is causing the
failure. Continue adding devices one at
a time to ensure all devices are
functioning properly.
4. If the problem persists, contact Ciara
Technology since the problem may
necessitate the replacement of the
power supply or the motherboard.