Hi,
I'm currently using the 390 slot since when I installed that card, that is what it showed. I'm almost 100% certain I checked this when installing this card. My question is, is it normal for nvidia to change the series of drivers for cards like this?
A driver series is not necessarily bound to a specific card, so it is normal to see newer driver series supporting older devices. I'd assume that 390 was the current stable series back when you checked it. The current series is 440.
For the current series, you also have drivers separated into a "long-lived" and a "short-lived" branch - as far as I know that only marks how long a driver receives official support, but don't quote me on that.
The most recent driver is 440.82 in the long-lived branch. You can find a list of all Unix drivers at [1] without having to fill out any forms.
Then there's also the legacy driver series specifically for devices that the current driver no longer supports. A GTX 480 card, for example, would need the 390 series. There's a list at [2] and more info about support timeframes at [3].
According to that the 440 series supports the 5.6 series of kernel. It doesn't indicate a specific version tho. Does that mean I can go to the very latest version or do I need to look elsewhere to see what is supported?
In this case you can go with the very latest release, yes. Any future 440.* driver will work for you.
Once a new series is released (I don't know how frequent that is) you might want to check whether your card still supports that, however.
Hope this helped clear up the confusion. [1] https://www.nvidia.com/en-us/drivers/unix/ [2] https://www.nvidia.com/en-us/drivers/unix/legacy-gpu/ [3] https://nvidia.custhelp.com/app/answers/detail/a_id/3142 -- Wolf
