Upgrade ram 5820 consult

Hello, I have a question and I hope you can help me. I have a 5820 with a xeon w-2145 processor and I would like to know what type of ram is the best for my computer? I upgraded to 32 gb with two 16gb ram and they installed this Dell Memory Upgrade - 16GB - 2RX8 DDR4 UDIMM 2666MHz ECC model with the dell SNPVDFYDC/G label but when checking its compatibility at https://www.dell.com/ en-us/work/shop/dell-memory-upgrade-16gb-2rx8-ddr4-udimm-2666mhz-ecc/apd/aa335286/memory#tabs_section I see that it is not compatible with 5820. The equipment works but I would like to know if it affects in performance or may harm my pc in the future. Thanks.