[HELP] GA-Q87N, BIOS dont boot after UEFISHELL> DMPSTORE -D -ALL

My motherboard Gigabyte GA-Q87N .
BIOS AMI: F2
few days ago i erased all variables in NVRAM by command in uefi shell :
dmpstore -d -all

After restart system still no boot. Display - no signal. CPU-Fan works continuously - ok. No self reboots. And my RAM modules has leds - before they blinks, but now stops.
If hold PWR button 4+ sec - power is switch off.

What i did.
CLR_CMOS jumper - no luck.
Remove battery - no luck.
Start with held power pins more 30 sec - nothing.

Anybode knows method for recovery like invisible recover from USB-flash drive (or similar non interactive)?
Please help

I made the same mistake on an ASUS K72Jr Laptop.

Any help would be appreciated