Just in case anyone was having problems with the Asus Prime z270-p, I heard that many others have the same issues. I'm going to return it and try the MSI z270-A Pro that was recomended as I just can't get more than 5 cards on the Prime z270-p. Hopefully I can get all my cards working on it.

Do you use a Skylake or Kaby Lake processor on the z270-a pro? I want to make sure I don't have anything different so that I can maximize my chances of having less headaches.

Are people using a mix of RX cards, or just one single type? Trying to track down mobo issues seems like a big headache, but when it works it's a good feeling.

z270-p guy again.

Another thing I noticed:

I had 3 GPUs working, but only after I did a PCI-E slot dance. After that, I shut the rig down. On boot up, I got the usual dropped shell and this error.

[ 5.861978] amdgpu: [powerplay] [AVFS] Something is broken. See log!
[ 5.863876] amdgpu: [powerplay] Can't find requested voltage id in vdd_dep_on_sclk table!
[ 5.864918] amdgpu: [powerplay] VDDCI is larger than max VDDCI in VDDCI Voltage Table!

Any ideas?

Update on my PRIME z270-P issue on page 181. Resetting the bios, setting everything to GEN2 and enabling 4g let me use 3 cards. Haven't gotten any luck to get more than 3.

Anyone have any other bios things I can do for this board?

Hello, I'm having some strange problems whenever I try to get more than two cards working on any of my systems. I've managed to get 3 cards working with some bios fiddling, but I couldn't reproduce it.

I'm running

Intel 3900 (Skylake)
Asus PRIME z270-P
8gb Ram
A mixture of various 580 4gb and 8gb

I've enabled 4g and find that I'm most stable with everything (PCI, etc) set up to Gen 1. Are there any other settings that need to be changed?

I'm using a 16gb usb 2.0 pen drive. I've tried both the normal and z170 Simple Mining versions.

When I boot it, regadless of success, I get a few flashing screens of this weird rainbow static.

https://i.imgur.com/tl1W0bN.jpg

Then, I boot in Xubuntu, as normal, but then get this.

https://i.imgur.com/LUeBvEK.jpg

There's another similar error that just locks the system up until you press a button and it resets the entire system, but I haven't been able to reproduce it. My biggest issue is that I'll have my system be stable at 3 cards, but when I restart it it'll not boot up normally again.

Any one have any ideas/bios settings? I've had some success, but I really want to reproduce that 8 GPU z270 build I saw.