NUC DN2820FYKH 4 or 5 beeps no boot

[kkote1]

I have this NUC working as HTPC.

After a few years of flawless working it began to boot on second attempt, like as it was discribed here https://forums.intel.com/s/question/0D50P0000490SN5SAM/nuc-dn2820fykh-kit-shuts-off-after-switch-on

Finally it came up to no boot at all (I think it happened after eletricity loss).

When I start NUC, it beeps 4-5 times through earphones at 1 Hz frequency and shuts power off. TV says 'no signal' forever.

I've tried to do a BIOS recovery, but NUC didn't even react on holding power button, nothing changed. I've tried to install another DDR3L module, nothing changed either. I thought maybe it was power issue. I've checked output voltage and it was near 12 V stable.

So what options do I have now, should I take it to repair? I don't think that any local services had experience with this sort of hi-tech engineering... :-\

[n_scott_pearson]

Have you tried another power supply?

[kkote1]

No I haven't.

[Wanner_G_Intel]

Hello kkote1, Intel Customer Service no longer responds to telephone, chat, community or e-mail inquiries for Intel® NUC Kit DN2820FYKH from fellow community members. You may follow recommendations provided by other community members or find the "Discontinued Products Website" helpful to address your request. Discontinued Products Website https://www.intel.com/content/www/us/en/support/discontinued-products.html It is also worth mentioning that you can verify additional information about this product's discontinuance status at http://ark.intel.com/ > Product Status > "Discontinued". Wanner G. Intel Customer Support Technician Under Contract to Intel Corporation