Troubleshooting
ROBO-8712E Series User’s Manual
5-6
Note:
Due to the fact of different Power Supply Units had different definition on pin
assignments. Therefore, please check Pin assignment on Power Supply or ask your
vendor.
Unboot problem
Symptom: After changing power mode from ATX to AT, my system is just not
working.
Solution:
Due to ICH4 design, when you change your power mode from ATX to AT
or from AT to ATX, you have to clean your CMOS in order to make your
system boot up properly. To clean CMOS, please short 2-3 pins on JP1 for
a moment, and then change it back to its default setting.
Symptom: SBC keeps beeping, and no screen has shown.
Solution:
In fact, each beep sound represents different definition of error message.
Please refer to table as following:
Beep sounds
Meaning
Action
One long beep with one
short beeps
DRAM error
Change DRAM or reinstall it
One long beep constantly DRAM error
Change DRAM or reinstall it
One long beep with two
short beeps
Monitor or Display
Card error
Please check Monitor connector
whether it inserts properly
Beep rapidly
Power error warning
Please check Power mode
setting
Symptom: There is neither no beeps nor screen output.
Solution:
Indeed, you might want to check the system with the stand-alone to
identify the root cause by isolating the board from other possible system
devices such as PCI device, Backplane, and so on. If the system still cannot
boot up, please fill out RMA form which is provides on Portwell website,
and then send back to Portwell Inc. as a RMA goods. Besides, you also
visit RMA site (http://www.portwell.com.tw/rma/login.asp) to check
RMA report if necessary.
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