While the more affordable Prime 50Plus clearly says in it's spec page Unbuffered memory ECC Memory (ECC mode) support varies by CPU Which means All Ryzen CPU's 1st Summit, 2nd Pinnacle & 3rd matisse will work with ECC Except for Raven Ridge (Ryzen APU with Vega) only PRO versions would work with ECC ==========ECC (and parity) memory modules have a chip count divisible by three or five This extra chip detects if the data was correctly read or written by the memory module If the data wasn't properly written, the extra chip will correct it in many cases (depending on the type of error) NonECC (also called nonparity) modules do not have this errordetecting feature Any chip count not divisible You can use NonECC memory in this motherboard and with that CPU It will work fine and obviously just the ECC feature will be disabled K Kanedo New Member 11 0 1 40 #3 Great!!!

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