I finally got around to swapping out the card from my 5300 into my 190. Unfortunately, I got the same result as you.   My card has a note "FOR 53XX"1 so I guess that the 190's card would say something like "FOR 19X".

I incorrectly assumed that the MV16EN was a universal card, because the Installation software had options to install the driver for the 5300 or 190 series, but only had 5300 drivers for their MV16 and MV8 cards. Sorry to get your hopes up!

1. Makes me wonder if Apple planned to release other alternate models, like a 5316, following their PowerMac lines.