CEC4 Frequently Asked Questions (FAQ)

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Question #248: The RESET LED is blinking. What's wrong?
Answer: This means that the internal power supply of the SBC has detected an overload or even short-circuit condition on one of its power rails.

Please follow the steps below:
  • Disconnect the power, wait 10 seconds, then reconnect the power again.
  • If this doesn't help, disconnect the power, remove all cables and/or add-on cards (especially the ones which may have been recently installed or changed) except the power cord and reconnect the power again.
  • If there is no blinking RESET LED, try to isolate the culprit by reconnecting / reinstalling all the previously disconnected / removed items one after the other.
  • If the problem persists, the system needs most probably to be returned to MPL for a detailed analysis.

Question #247: My MPL SBC does not [boot|start] up. What can I do?
Answer: First of all, what precisely is meant by "does not [boot|start] up"?

Is the system not powering up at all or is there some reaction / output from the BIOS/bootloader, but no operating system is loaded or started?

If it is the former, please do the following:
  • check the status indicators (LEDs) if any.
  • press the power button if available.
  • check the power supply, cabling and fuse.
If it is the latter, please do the following:
  • try to boot the system from a known good bootable media (CD/DVD, USB, network, ...).
  • check the integrity and status of the default boot media. Replace the boot media if necessary.
  • if the software and/or hardware has been changed recently, retract the change(s).
  • recover the system from a backup.


Please note that the above is just a rough list of things to check and try. Please use the corresponding manual for detailed information and precise instructions for a particular MPL product.

Question #377: Is the CEC 4 fully supported out of the box by Debian GNU/Linux?
Answer: No, not yet. However, when using an adapted kernel, the armel port of Debian wheezy works perfectly on the CEC4. If you want to install Debian yourself, please contact MPL AG for suitable kernel packages and an installer image for Debian wheezy. We are working towards inclusion of the CEC 4 in the next Debian iteration, though.

Question #388: What processor exactly is used in the CEC 4?
Answer: The CEC 4 uses an ARMv5TE-compliant Marvell Kirkwood 88F6281 SOC. See the Marvell site for more information.
 
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