Quote from: halker2010 on January 19, 2018, 07:28:19 AM

Quote from: jvonbaker on January 19, 2018, 06:54:11 AM

Ok....I have to reach out for help with my first post to this forum. I've searched and searched and troubleshot until I'm out of ideas. I've searched the forum and the google webs and my eyes are popping out of my head. Apologies if this has been answered already.

Asus Prime z270-a is only picking up 5 of 6 of my Sapphire Pulse rx 570's. Here's what I've done so far:

- isolated each card and riser to make sure they are working individually
- DDU'd the drivers in safe mode and reinstalled the crypto driver from AMD
- scaled in by loading one card at a time and rebooting after each card; it refuses to recognize card 6
- changed bios settings to gen2 and G4 enabled
- changed pci configuration to use all three PCI 16 slots and then the first three PCI 1 slots

still no luck. I'm out of ideas. HELP!

are all cards connected with risers did you try all the risers with one gpu to see if any of them are faulty or tried connecting the faulty pci e slot directly without risers to see if it works ?

halker2010 is right, you should try 1 GPU with each riser. I've had some problems like that because of USB cable.
What is your OS? What is the vesion of bios? It should be v0906 or later.