The computer was purchased in January 2019. On receipt it was successfully tested with Linux Mint 19, and then repackaged and placed in storage as a spare. I believe that the last step undertaken before the NUC was placed in spares storage, was POSSIBLY to do a BIOS update. Unfortunately the person who may have done a BIOS update on the NUC is no longer available to find out details.
When the NUC7i3BNH was retrieved from spares storage in week 4 of February 2019, the NUC would not output anything to HDMI. I can not tell if the device is actually booting, as I can not get any HDMI output.
The following is the sequence of events when the power supply is initially connected to the NUC:
I have tried two different HDMI cables, and two different HDMI Monitors. Additionally, I have tried a USB C equipped monitor. All monitors and HDMI Cable configurations show "no signal".
Examination of the Intel Support site has identified a BIOS recovery procedure, but as the computer will not output a HDMI signal, the Bios Recovery procedures do not work.
I have also tried the procedure to "Clear the CMOS Memory" (https://www.intel.com.au/content/www/au/en/support/articles/000005805/mini-pcs.html) but this procedure also does not work as there is no HDMI signal.
I have tried disconnecting the BIOS Battery for a minute and then trying to boot again. In that case, the NUC did initially output a 1080P signal as reported by the HDMI Monitor, (although no image was seen on the monitor) but the NUC then went through it's LED light sequence, and no further HDMI signal was seen.
I have tested the SODIMM and the SSD in another spare NUC7i3BNH, and both SODIMM and SSD have been tested and are working.
Please advise how I should proceed to further diagnose and rectify this problem.
Disconnect the battery for 15 minutes with A/C power disconnected as well.
Try the jumper-based BIOS Recovery process. If no display is seen, even though Leon is correct that it should finish the recovery process within 5 minutes, I would wait a full 15 minutes before powering it off.
Hope this helps,
Thank you for your speedy replies ......
The following are the additional steps that I have tried based on your responses:
Can you please advise if there re any other procedures to be followed? Or is this NUC "Bricked" or does it have a hardware failure ?
Hello @RGilb3 ,
Just as an FYI, the BIOS Recovery firmware, due to size limitations, does not support the same level of device compatibility that the BIOS itself supports. Incompatibilities have been encountered with some USB flash disks and some (despite claims to the contrary, not 100% compatible) "FAT-like" file systems. As Leon indicated, the former issue can often be overcome by reformatting the USB flash disks on a MS Windows-based PC with the Quick Format option disabled (which causes every sector to be re-written) and the latter issue by (also) specifically choosing the FAT32 file system.
As Leon has enumerated, there are still a few other things that you could try, but it is looking more and more as if something has failed. The symptoms as you have described do not necessarily make it sound like the BIOS has been bricked, but whether this is the case or a hardware failure of some sort has occurred really doesn't matter; you are looking at replacing the unit. If you can no longer do so through your place of purchase, you will need to contact Intel Customer Support directly to set up a RMA replacement.