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Month: March 2017

Ryzen Motherboard ECC Memory Summary

Ryzen Motherboard ECC Memory Summary

This is just a list tracking what is known about which AM4 motherboards currently on the market support running with ECC memory.

If you see (or have tested) anything not on my list, please drop a comment and let me know about it so I can update.

Overview by Brand


So far, all ASRock B350 and X370 boards have the following text in the spec sheets:

– AMD Ryzen series CPUs support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memory

Additionally, there’s been confirmation from ASRock that the X370 boards have working ECC. So it’ll probably work! When I find confirmation for specific boards, I’ll add it to my detailed list.


Some of the ASUS X370 and B350 boards were originally published with specs listing support for ECC memory (e.g. from a B350 board):

AMD Ryzen™ Processors
4 x DIMMs, max. 64GB, DDR4 2666/2400/2133 MHz,ECC and non-ECC, un-buffered memory

but the spec sheets were later updated to remove the “ECC and” part (from the PRIME X370-PRO):

4 x DIMM, Max. 64GB, DDR4 3200(O.C.)/2933(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory

Some ASUS boards have been confirmed to work, both by AMD techs directly and by user testing. Details in the table below where known.


On product pages for all B350 and X370 boards, they list

Support Non-ECC & ECC Un-buffered DIMM Memory modules

I’m still looking for confirmation that ECC memory is fully functional, but it’s a good start.


On their spec comparison page, Gigabyte says that for their X370 boards:

Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules

but on the B350 boards:

Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode)

which is pretty disappointing. It’s not clear exactly what “operate in non-ECC mode” even means (no EDAC?). I haven’t seen any tests yet to confirm either way.


There’s no mention of ECC in the specs list for any of the MSI boards. Status TBD, but I’m not optimistic.

Table of Infos

To get the “Works” status, I look for a review or test where someone has induced memory errors e.g. using Rowhammer, and has seen reports of corrected memory errors in the OS logs.

Board Chipset Form Factor ECC Status
ASUS PRIME X370-PRO X370 ATX Confirmed, Works
ASRock X370 Taichi X370 ATX Mostly works (no UE halt)
Gigabyte GA-AX370-Gaming 5 X370 ATX Probably Works