Can I use DDR4 PC4-2666V ECC RDIMM on a motherboard that supports DDR4 PC4-19200 ECC RDIMM?

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Homelab@selfhosted.forumEnglish · 10 months ago

I recently got a Dell Precision T7810. Comes with 8x 4GB DDR4 PC4-2133P memory. According to spec it can support max 2400Mhz ECC RDIMM memory, which is PC4-19200. https://www.metservers.com/assets/images/Dell_Precision_Tower_7000_Series_7810_Spec_Sheet-METServers.pdf

I found some Samsung memory sticks on ebay which according to spec is PC4-2666V.

This: https://semiconductor.samsung.com/us/dram/module/rdimm/m393a4k40bb2-ctd/

Question is if I get those will it work? And if working what speed it will be working?

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