Question Asus Rogs Strix B450f Gaming II +3 pci express problem

[ulissesneves]

This motherboard has 6 x PCie expansion Slots.... When I connect 2 rtx 3070 works fine....then when I try connect the 3rd rtx 3070, I cant even get in the bios, (no monitor signal, no keybord signal) nothing...

anyone had this problem?

*latest bios driver

 

[Nemesia]

What's the full system specs including PSU brand and model?

 

[ulissesneves]

v1200 Platinum CoolerMaster

 

[freakshow85]

Did you get it working? I was browsing through Google for totally unrelated info and came across this post because I saw it involved the same motherboard I have.

I was going to see if you enabled Over 4G Decoding in the BIOS first.