I have a DN2820FYKH which I planned to configure with 4GB memory, 500GB HD and a Linux OS.
I've configured and tested the unit in simple steps to check that everything works successfully along the way. After updating the BIOS to 0028 (latest version as at this date) however, the unit now won't display anything and there's no evidence that it's even booting at all. I've gone through the BIOS recovery process by removing the BIOS jumper and powering the unit up for a while but nothing happens apart from the display coming out of standby and the lights on the keyboard and mouse coming on. I left the unit for 10 minutes before powering down, replacing the jumper and powering up again. Still no display or signs of any other activity.
Can anyone help with a route forward with this please?
I have a lot invested in this project and I can't afford my timescales to slip much.
The History: I configured the DN2820FYKH in these steps:
1) I installed the memory, then powered the unit up with a connected HDMI display, keyboard and mouse. The unit booted as far as the BIOS configuration screens just fine (I may have had to use the F2 key). Concluded that the unit is functional and compatible with my display and keyboard. I configured the BIOS to boot from the USB stick before powering down.
2) I connected a bootable USB stick, powered up the unit, and proved that the unit would boot to a Linux OS from the USB stick. The unit seems to be working just fine. Demonstrated that connectivity to network and an external USB HD is OK.
3) The unit was shipped with BIOS (0015), so following INTEL's configuration instructions, I attempted to update the unit with the latest BIOS (0028) using a BIOS image downloaded to the USB stick. Booted to the BIOS configuration screen - that's fine. Keyed F7 and navigated to the USB stick to select the BIOS image - that's fine. Answered 'YES' to the "Do you want to update" question. The display blanks for a minute then goes to text mode and displays the expected...
Current Revision: ?????
Updating to Revision: ?????
Preparing image for ???... [done]
Preparing image for ???... [done]
Preparing image for ???... [done]
Flashing image for ???... [done]
Flashing image for ???... [done]
Flashing image for ???...
The next thing I registered was the unit re-booting (keyboard/mouse off and display to standby). The keyboard/mouse light up again and the display goes active but nothing is on the screen. The NUC power light is steady. The USB stick light is steady. No reaction to [ESC] F? or other key presses.
Sucessive power cycles give the same result.
I've verified all the external hardware for functionality elsewhere, tried another display, checked the memory is seated properly etc. All hardware configurations have been done in a static-safe environment.
Tried the boot recover process. Same symptoms: Lights on but no activity.
I've spent a lot of hours on this now.