MSI B550 Gaming Plus upgrade path

[scoop]

Wondering if the time is right for an upgrade on my B550 - it presently has a Ryzen 3700x and I spotted the mobo will support a 5900x with a BIOS update so was thinking about upgrading.

Current config also includes 2 x 16GB 3200MHZ Corsair Vengeance DDR4 DIMMs (CMW32GX4M2Z3200C16), an AData PCIe3x4 SSD.

Am I right in my reading of the compatibility charts that the B550 board will only support 2 x DIMMs alongside a 5900x, so adding a further 2 x 16 GB DIMMs will not be of any value? Or is anyone running 4 x DIMMs on one of these boards?

And realistically, what speed difference am I likely to see going from the present SSD to a PICe4, say a WD SN850 or similar?

 

[scoop]

Good point - should have mentioned that. Mostly Lightroom and Premiere Pro, with some rendering. Little to no gaming.

 

[scoop]

THat's reassuring... I guess you needed to update the BKIOS for the CPU support?

Would be interested to see how you get on with that switch of memory... Screenshot of the compatibility checker here for my DIMMs, which I read as only 2 DIMM supported, so interested that you're getting all 4 working.

http://www.thejordans.org.uk/images/Screenshot.jpg