Yes, if they all plug into the mainboard then the manual should tell you if you have enough lanes or if they are potentially over committed in Bios. How many cable do you connect and what connector do they have?
I think this is the best indices ...
https://dell.to/44w3XRU
And, this DEFINITELY looks like there are far from 96 lanes provisioned ... but rather ... only 32-Lanes.
But even still ... with just 16-lanes ... that should provide adequate lanes for 4-drives (if separated into each of those 12-bay groups) to have 100% throughput. And even though it provides 16-lanes for 12 slots (not evenly divisible ... suggesting it's flexible ... it probably isn't and provides all of 1 lane per slot? But then how does it get over 3GBs from any of the drives ... and why would they get LESS when aggregating them is still not explained).
But still, people have already told me they've gotten over 3GB/s via ZFS ...
On the next page (if you click on the link above and see the PDF) you can see that the R7525 with 2 CPUs and PCIe 4.0
BUT ... I guess I'm looking into buying a goddamned R7525 which actually has CABLES for the damned lanes that exist ... not that that explains why the F I'm getting such abysmal performance ... and for all I know..??? I could buy one and it'd be no better. :'(
Quick image of the page with the relevant image:
Here's the manual's reference:
https://dell.to/44t5S9B
It's OEM configured for 24 NVMe drives (here's a picture of the configuration (highlighted) that I have):
(it didn't even support SAS nor SATA until I added the HBA330 for the first 8 slots).