Avago MR9440-8i

Hi folks. I have a Precision 7820, and I also have questions. 

1) When this thing fires up, there's no prompt to allow me to enter the card setup. I tried the key combo listed on various sites, but no go. Anyone have a way to enter the BIOS of the card? I don't want to reset it, just want to look at the settings. 

2) With the SAS drives, this thing can be very fast. The configuration I was handed has 1 Samsung 300 Gb 2.5" SAS SSD and 1 250 Gb Samsung regular SSD in the chain. (Pretty sure it's JBOD, because both disks appear separately) It's running Server 2019.

My question is that the database we're going to be running has millions of tiny image files that are served out into a cohesive 3-D image (It's called Sidexis, if anyone knows it) so disk I/O is critical at the server stage. I need to SERIOUSLY hump up the storage capacity, and I don't know if I need to have ALL SAS drives in the array, or can I just add some more standard (EVO 860) 1Tb Samsung SSDs and call it a day? Which will give me the ultimate performance? 

Thanks in advance.