Troubleshooting
RUBY-7720VG2A User’s Manual
5-5
5.3 FAQ
Unboot problem
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:
Symptom: There is neither no beeps nor screen output.
Solution:
Indeed, you can do 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 from which is provides on
Portwell website, and then send back to Portwell as a RMA. Besides, you also visit
RMA site (http://www.portwell.com.tw/rma/login.asp) to check RMA report if
necessary.
Information & Support
Question1: I power on the system, but the CPU speed is not correct. Why?
Answer:
If you have ever loaded the BIOS optimal default, thank you for doing so.
Please check CPU FSB/Voltage Reference CPU Jumper Setting(JP10/11)
Question2: What kind of CPU supports?
Answer:
Intel Pentium M / Celeron M Processor for Mobile FSB 533/400 MHz series
CPU.
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
