Synway Information Engineering Co., Ltd
UMCT Intelligent Switch Hardware Manual
(Ver. 1.3)
Page 17
Appendix B Troubleshooting
The table below lists some problems that may occur in using the UMCT intelligent switch.
No.
Issues
Possible Causes
1
Fail to boot up the
computer
a) Power cord unconnected or power supply damaged,
especially when the STDBY indicator does not light up.
b) Poor connection of SCU board or RCU board. Clean
the slot of the board.
c) Power key not pressed. Find the key on the rear panel
of the device and press it.
2
Successful to boot up but
no display on the screen
a) Bad contact of SCU board. Clean the slot of the board.
b) Loose connection of VGA line on SCU board.
3
Fail to start up the system
a) HD damaged or OS crashed. Don
’t power off the
device while the system is running.
b) Bad contact of HD. Reinstall the HD.
4
Display blue screen
a) Memory corruption. Check it with a memory inspection
tool.
b) Bad contact of SCU board or voice board. Clean the
slot of the board.
5
Hot-Swap indicator always
on
Improper board installation leads to abnormality in power
supply.
6
System fails to find the
board
a) Bad contact of board. Clean the slot of the board.
b) Hot adding of board. Restart the system.
7
Power buzzer of SSW080B
alerts
a) Only one of the two power sockets being plugged in or
one of the power cords being abnormal.
b) A power module damaged.
8
Cannot find HD
a) Poor installation or loose connection of HD. Reinstall
HD and fix it with screws.
b) Incorrect HD settings in BIOS.
9
Frequent HD damages
a) Fan excessive vibration. Change the fan if it is ageing,
and replace the mechanical HD by an SSD HD.
b) Abnormal power-down while the system is running.
c) System HD overworked. Use an enterprise HD instead.
10
Neither transmit nor
receive data with a good
network card driver
a) A too quick restart of the device after abnormal
power-off. After power-off, wait for at least 10s before
powering on it again.
b) The content of EERPOM on the network card has been
changed. Retrieve the normal content by programming.
11
Cannot enter Windows OS,
with the system hanging at
the welcome screen