Epson EISA Desktop - Manual (Page 139)

When these circuits detect a high temperature, they shut off all
the DC outputs in the power supply and your computer stops
operating. This does not damage the power supply, but you
must remove the cause of the high temperature before you can
use your system again,
To restore normal power supply operation, follow these steps:
1. Turn off the computer and leave it off for at least
30 seconds to reset the power supply logic.
2. To determine the cause of the high temperature and correct
the condition, check for the following:
A blocked power supply fan. Make sure that nothing
blocks the power supply fan vents in the back of the
computer case. Check both inside and outside the
computer for blockage. Make sure there is ample room
around your system for air circulation.
Room temperatures of 95° F (35° C) or above. If this is
the case, move the computer to a cooler area.
An overload of the power supply limitations. Check the
table on page D-4 to see if you have exceeded the
option slot power limits. See your option card manual
for the power requirements of your card(s).
3. After you eliminate the problem causing the overheating,
allow the computer to cool down for at least five minutes at
a room temperature of about 78° F (25” C). This resets the
thermal detection circuits.
4. If you removed the computer’s cover, replace it now. Then
turn on the computer.
If the power supply shuts off again after you follow the steps
above to correct the problem, contact your dealer.
C-8 Troubleshooting