First off thanks for all the help thus far. But I am running in to a problem and would really appreciate it if someone could give me a helping hand.
So initial I had 5x 1070 2 connected via risers and 3 connect directly via the motherboard. I then bought some more risers so I could connect all of them via risers and someone suggested to do a fresh install whenever doing any hardware changes so I did that. However, now regardless of what configuration and the way I setup the gpus either the original with some via the motherboard and some via risers or all of them on risers it is only picking up 4 out of the 5 gpus. Any troubleshooting suggestions I tried look through to see if anyone else had this issue, but couldn't find anything that worked. Also I have tried multiple fresh installs on a few USB drives. Once again thanks in advance!
What motherboard are you using?
I am upgrading to a 6x PCIe mobo next week so I hope to not run into this issue?
I am currently using the Asus Prime Z270-A
1. Will the new cards work if you run 2 old ones with the 2 new ones?
2. Did you follow what is in the OP?
If you are using an ASUS PRIME Z270-A; ensure 'Above 4G Decoding' is enabled in the bios. Also ensure PTP aware OS: is set to 'Not PTP Aware' in the bios. Finally, ensure you 'Clear Secure Boot Keys' in the bios.
Also, I've read that PCIe setting needs to be set to Gen1. It sounds like it could be a simple BIOS issue.
fullzero,
Hello. First, thank you for all your hardwork on nvOC. Running 7 x zotac 1070 mini with your suggested settings. It makes everything so easy.
I am having one problem though , which I'm suspecting is a bad PCIE slot, but wanted to run it by you.
On my asus z270-a, the card on PCIE1_4 intermittently shows up. I've switched a known good card into it and it's still the same. Any ideas on what else I should try? Or just a bad board, and get it swapped?
Also, do you have a suggestion for another board that can do 9 gpu with 2xM2 slots?
Thanks again for your time!
Have you also tried swapping out the riser for this card as well?
Is there anything different with how the riser for this card is powered?
Are you using a single sata cable to power 3x risers; one of which is this card?
This mobo will also support up to 9x cards with 2x m2 adapters:
https://www.newegg.com/Product/Product.aspx?Item=N82E16813132930Although personally I like the z270-a more; for aesthetic and $/slot considerations.
After I changed to Gen1 PCIE, my known good videocard/riser/cable/card worked on PCIE1_4. I then rechecked the other set of videocard/riser/cable/card. That ended up being a bad cable. Everything seems to be working fine. Looks like I had two issues there. Thanks for the tips!