A working PCI Express adapter has been found!

[asktoby]

Good news to report!

I took a punt on this PCI Express to PCI adapter from Aliexpress:
https://www.aliexpress.com/item/1005004 ... 1802IfaJCj
(PCIE to PCI Adapter PCI Express X1 to PCI Expansion Card Riser ASM1083 Chipset PCI-E Converter Adapter with 4Pin Power Connector With Capacitance)

(note: I chose the variant "With Capacitance")

I've been able to fit this to my PC and fit my Pulsar II card into it and it seems to work great!

Lots of photos and proof here:

https://imgur.com/a/CtAuWwh

8 concurrent Masterverbs and when I added a ninth, it failed due to DSP capacity, not due to PCI capacity.
I've ordered a second adapter, and in due course I will install two cards in two of these and be able to report back a long-term test.

[valis]

Thanks for the report, certainly an affordable experiment and solution if it works out.

[darkrezin]

Good news to report!

I took a punt on this PCI Express to PCI adapter from Aliexpress:
https://www.aliexpress.com/item/1005004 ... 1802IfaJCj
(PCIE to PCI Adapter PCI Express X1 to PCI Expansion Card Riser ASM1083 Chipset PCI-E Converter Adapter with 4Pin Power Connector With Capacitance)

(note: I chose the variant "With Capacitance")

I've been able to fit this to my PC and fit my Pulsar II card into it and it seems to work great!

Lots of photos and proof here:

https://imgur.com/a/CtAuWwh

8 concurrent Masterverbs and when I added a ninth, it failed due to DSP capacity, not due to PCI capacity.
I've ordered a second adapter, and in due course I will install two cards in two of these and be able to report back a long-term test.

I couldn’t work this out from the video/photos you uploaded - isn’t the extra height of the adapter a major problem?

Won’t some ADAT ports become inaccessible because they don’t fit through the PCI bracket in a standard case?

How is the card secured to the case?

[asktoby]

The extra height is something to overcome, but not a major problem in my opinion.
If you look in the video at this frame:
https://i.imgur.com/F5Zh4Nw.png
You can see that it doesn't stick out beyond my normal ITX case's side wall. Yes, the ADAT ports are inaccessible, but only if you're unwilling to get busy with a dremel
For the test, I held the weight up with some lego towers. Honestly, they worked pretty well, as long as you're not moving the tower around at all.