Yeah totally understandable. I’m not really the type who likes to waste other people’s time as I expect the same reciprocation, so if I needed to contact support I lay out the issue clearly with screen grabs in the simplest English possible. I don’t think Topton even really bothered to read it though as they never clearly answered any issues until I said I’ll do a PayPal chargeback. Then they went back, back read, and answered every question thoroughly lol.I had the same mixed results with Topton when I was unable to get the system to identify dual Samsung 970 Evo Plus NVME drives. From memory the BIOS would only show the drive connected via the PCB connected to the 2230 A+E port.
They were frustrating to deal with because they spent the first 20 messages denying that the board even supported dual M.2 drives. Even when I sent them the specs and photos from their own website. Then another 20 arguing that I had a faulty NVME drive even after I sent them proof that both drives worked individually.
Eventually they did actually get an engineer involved and confirmed that dual drives should work and did some in-house testing. Unfortunately they didn't have any Samsung drives handy so couldn't replicate my fault specifically.
As soon as I had a work around (using Seagate) they ghosted me from that point on. I agree that this is a weird issue probably to do with enumerating the PCIe devices and outside anything that they can directly address, but unless they feed it back to the OEM then it isn't going to get fixed.
I also understand that 99% of support tickets are PEBKAC, there is a language barrier and at $200US there isn't a lot of room for gold class support...
I wouldn’t have much hope on BIOS updates, if the board ODM even has a website where they post firmware updates. We are lucky we found Changwang’s update page. I don’t think Bluetech posts any updates at all. In any case Changwang’s BIOS certainly can be improved with minimal effort in many ways. I wonder if your issue is that the BIOS wasn’t able to differentiate between different device IDs and manufacturer IDs, and initialize your 970 Evo Plus pair.