Z270 Extreme4 No Video

I?™m getting no video upon start up from my Z270 Extreme4 mobo.
Lights from the mobo are on, all fans are running. Looks like it?™s trying to load BIOS B based on the light that?™s on.
I?™ve seen a lot of people have his issue and it?™s always something different that solves it.
So far I have:
Tried various RAM configurations
Unplugged my GPU from the board
Checked the CPU power in is connected
Unplugged the SATA connectors from storage
Basically everything I can think of

Setup is:
i7-7700k
EVGA G3 750W
G Skill 8GBx2 3200
Corsair H100i V2

Any help is great!!! Do I need a BIOS update for this RAM?

And don?™t give me the run around like everyone else because as I?™ve noted, it?™s been done.

I did not breadboard before installing it into the case. Do I need to?
Yes it was connected to the PCIe. I didn?™t list the GPU because it?™s irrelevant, since it?™s not connected. I?™m using only the connections from the motherboard to test the video.

There is no jumper on the pins next to A1. Should there be?

Dear VonConstantine,

 

Thank you for choosing ASRock.

 

Regarding your question, there is no jumper next to the BIOS ROM chip.

Z270 Extreme4 has two BIOS ROM chip and will automatically back up BIOS B to BIOS A when BIOS A is corrupted.

We provide some suggestion to try.

1.     Clear CMOS to load BIOS default.

Please check user manual p20 to clear CMOS.

http://asrock.pc.cdn.bitgravity.com/Manual/Z270%20Extreme4.pdf

2.     Please check power supply is plug properly and power supply switch is on.

3.     Only install CPU and one stick memory to check if the system can boot into BIOS properly.

4.     Please try to install one stick memory at A1, B1, A2 and B2 slot to check if the system can boot into BIOS properly.

5.     Reinstall CPU and check if CPU socket pin is fine.

6.     If it is possible, please change another CPU or DRAM to check if the system can boot into BIOS properly.

 

Thank you!

Yours truly,

ASRock TSD