What newer CPU & Motherboard will work with Timetec 4 x 16GB DDR4 ECC?

Have a x370 Motherboard & Ryzen 7 1700 Zen 1 generation.

AI said the ASUS Pro WS X570-ACE and the 5950X but the Asus board is from 2019 and no one sells it.

I could switch to Intel?

This what I decided to do:

Remove 1660 super GPU from slot 1, one less power cable

Move Nvidia RTX 3050 GPU from slot 2 to slot 1 for Linux VM passthru

Move HBA from slot 3 x4 to slot 2 x8 to get full data out of the HBA

New Nvidia RTX A400 into slot 3 for Unraid boot/transcode single slot GPU

Upgrade Ryzen 7 1700 to Ryzen 7 5800XT

Remove a 6 SSD ICY Dock and go to open SSD frame and direct connection of Sata/power and install an 80mm fan using a 3d printed 2 x 5.25 baycover that the 80mm fan connects to with filter in front and another printed piece to pass bolts thru the pieces to mount the fan. It is my daughter's 3d printer so asking her to fill in the outside holes.

Still have a Gigabyte GA-AX370-Gaming 5 motherboard with excellent IOMMU groups from December 2017

I had Timetec 4 x 16GB DDR4 ECC 2666 ram that I had to go back to 2 sticks, hoping the Zen3 has a better memory controller and can go back to 4 sticks of ram.

Edited March 30Mar 30 by Paul_Ber

17 hours ago, Paul_Ber said:

I had Timetec 4 x 16GB DDR4 ECC 2666 ram that I had to go back to 2 sticks, hoping the Zen3 has a better memory controller and can go back to 4 sticks of ram.

The 5800XT will run 4 sticks of DRAM at 2600 with no problems. My main server is configured this way.

First generation Ryzen was most problematic with regard to DRAM speed. The new Infinity Fabric memory controller was new to both DRAM and Motherboard manufacturers. Combine that with everyone's focus on Windows operability, Linux was a bit ignored and with much fewer users to report issues took some time to iron things out

Still waiting for this Nvidia RTX A400 to arrive.

Once my HBA moves from a x4 to a x8 slot the parity checks should be faster.