Excellent. This board supports BIOS updates over the Internet via EZ Flash 3
Discover PRIME A320M-C R2.0: AMD AM4 motherboard with advanced 5X Protection II, lightning-fast storage speeds and user-friendly controls.
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The latest BIOS is version 6241 from this year
Discover PRIME A320M-C R2.0: AMD AM4 motherboard with advanced 5X Protection II, lightning-fast storage speeds and user-friendly controls.
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You should apply this after reading the accompanying documentation (just in case!) and before installing any new GPU as it will contain many fixes and probably - not certainly - enable ReBAR support.
That 4 pin (Molex) power connector in your pictures is not of use. You need to have a 6 or 6+2 pin cable (preferably two of them), called a PCIe power cable, coming from the PSU. If you don't have one then you will be limited to a GPU that operates off motherboard power like the 6 GB RTX 3050.
Unless you buy a new PSU.