The processor has different numbers on it and the motherboard has actually left some marks on it ( on the side because of that lever that pushes the cpu in ) so I would notice the marks.
And we have flashed my friends bios to 1.80, and it should support the 4790k since the 1.70 upgrade
And we have flashed my friends bios to 1.80, and it should support the 4790k since the 1.70 upgrade