it's hp eliteone 800 G2 T4J88EA mainboard is 6050A2716501 A01 i have test with file up "HP EliteOne 800 G2 no video display" but fan start fast and no boot with original bios fan turn normally
please program both chip 8MB & 16MB HP EliteOne 800 G2 23-in Touch GPU AIO Platform 6050A2716501.A01 working bios 8MB.rar 16MB.rar