Quote from: dominuspro on September 22, 2017, 10:22:36 AM

Quote from: Jonet on September 21, 2017, 09:46:52 PM

_kaurus can you check if your HDD or SSD is partitioned with MBR or GPT? MBR does not support Above 4G Decoding, but the symptom should be system lockup.

https://www.howtogeek.com/245610/how-to-check-if-a-disk-uses-gpt-or-mbr-and-how-to-convert-between-the-two/

Other then that I would remove one of the 1070's to see if the R9 390 got recognized. Or check if the system will accept 4 or more 1070's if you have more.

I'm using an MBR partitioned SSD with win7 and it works with 7 nvidia gpus. On the asus prime z270-p offcourse.

I was under the impression that Microsoft used MBR by default on all windows installs. So why would i have an MBR issue to recognize additional cards.

My AB350 board did 6 cards (not of the same brand), my asrock does 8+2 and now this Asus prime Z270-a only does 3 cards of any type. All systems are running off a normal laymen's install of windows.