Maximus Z690 Hero + Core i9 13900K: cannot POST with iGPU enabled.

[darkcg]

Hello,
I've just bought an Intel Core i9 13900K, paired with my Asus Maximus Z690 Hero (latest BIOS updated, of course).
When I enable iGPU and reboot the system, the motherboard won't POST and it remains stuck with a black screen and the error code 7F.

Now, 7F is "No video output".

The monitor is connected to a Zotac RTX 4090 Amp Extreme AIRO graphic card.

[saadiq7]

Update:

I could only get 2x32gb to run at 5600mhz.

When trying all 4 sticks, the best I could get stable was 4400mhz.

So for now I'll keep the 2 sticks running at 5600mhz. I needed 128gb for future proofing, but I think i'll get by with the 64gb for now. If in future someone comes out with a 128gb 64gbx2 kit, I'll upgrade then.

[saadiq7]

Update....

I could only get 2x32gb to run at 5600mhz.

When trying all 4 sticks, the best I could get stable was 4800mhz.

So for now I'll keep the 2 sticks running at 5600mhz. I needed 128gb for future proofing, but I think i'll get by with the 64gb for now. If in future one of these memory brands releases a 128gb 64gbx2 kit, I'll upgrade then.