Adding device space in UEFI

My sound card is stupid; needs to be in last enumerated slot of motherboard to be setup. I wondered why, then thunderbolt hassles came to mind.

Anybody know a simple way to sort this out, maybe in UEFI shell? There ought to be something simple, find device ID, manually allocate extra space, reboot. Perhaps it would be as simple as changing the MMIO range (memory mapped IO) to spread things out more. I’m looking for the thread that went over all the thunderbolt hassle to get ideas from, since this should be easier, not needing to inject thunderbolt firmware into motherboard, just make space between it and next device.

Unless somebody made competent custom firmware so it doesn’t require any setup at all. I’m not using any of Creative’s software with it; just a very basic registry edit.

Ok, now I just don’t know. According to HWInfo64, it’s enumerated just before GPU, just after USB card. I hope I don’t have a flakey/dead slot on this board; it having 7 open-ended slots is why I bought it.
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It … has static bus enumeration numbers per slot?
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… FFFFUUUUUUUUUck

Maybe chipset drivers are more to blame. Realistically that’s a fresh install to check though.
I just did a fresh install after sound card wouldn’t work in a slot and I assumed I FUBARed registry.
EDIT: Nope, same after fresh install.

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