See if you have the bios option to split your x16 slots up in x4 x4 x4 x4 mode. If so then you have quad and can run it.
If you have x8 x8 then you have dual and cannot. This might work though, HP's tend to be picky...https://www.amazon.com/dp/B071S3ZY8P
If you don't have those setting then you are limited to just a single M2 riser card.