AB350 pro4 - ecc disabled

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   Hi,
I'm having issues with my Asrock AB350 Pro4.

Setup:
Asrock AB350 Pro4 - bios v.3.20
Samsung ECC 2400MHz UDIMM 1x16GB - M391A2K43BB1-CRC
AMD Ryzen 1600X

I have not found anything about ECC in the BIOS. According to Asrock support it should be automatically enabled. 
The UDIMMs are not in the QVL but they are working fine (except for ECC...)
dmidecode output states that it can find multibit ECC memory in the socket. 
edac states at boot that ECC is disabled. I've tried to force-enabling it but it fails.
I'm awfully confused when I read on reddit that ECC works in some bios versions on AB350 and X370. Why isn't there a statement from Asrock? 
I've also read that it might be needed to have 2x UDIMM for ECC to work. No statement from Asrock on this either.
Do you guys have any recommendation on how to proceed? Should I return the mobo or should I buy two UDIMMs from the QVL? Or should I try an older bios version?

Thanks!

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Kalekulan Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Nov 2017 Status: Offline Points: 3	Post Options Post Reply Quote Kalekulan Report Post Thanks(0) Quote Reply Topic: AB350 pro4 - ecc disabled Posted: 20 Nov 2017 at 4:24pm
	Hi, I'm having issues with my Asrock AB350 Pro4. Setup: Asrock AB350 Pro4 - bios v.3.20 Samsung ECC 2400MHz UDIMM 1x16GB - M391A2K43BB1-CRC AMD Ryzen 1600X I have not found anything about ECC in the BIOS. According to Asrock support it should be automatically enabled. The UDIMMs are not in the QVL but they are working fine (except for ECC...) dmidecode output states that it can find multibit ECC memory in the socket. edac states at boot that ECC is disabled. I've tried to force-enabling it but it fails. I'm awfully confused when I read on reddit that ECC works in some bios versions on AB350 and X370. Why isn't there a statement from Asrock? I've also read that it might be needed to have 2x UDIMM for ECC to work. No statement from Asrock on this either. Do you guys have any recommendation on how to proceed? Should I return the mobo or should I buy two UDIMMs from the QVL? Or should I try an older bios version? Thanks!

Flodul Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Jan 2018 Status: Offline Points: 1	Post Options Post Reply Quote Flodul Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 4:53am
	edac-util recognizes your ECC-RAM onlly with a newer kernel has ryzen support. I'm running Ubuntu 17.10 and "dmesg \| grep -i edac" reports supported ECC with my AB350 Pro4. Under Windows "wmic memphysical get memoryerrorcorrection" reports "6", i.e. Windows recognizes the ECC-modules.

MisterJ Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 Apr 2017 Status: Offline Points: 1097	Post Options Post Reply Quote MisterJ Report Post Thanks(0) Quote Reply Posted: 12 Jan 2018 at 9:45am
	Kalekulan, Please open a ticket with ASRock Technical Support. Few here are using ECC memory and I, for one, am not aware of the UEFI version issue. Please do keep us informed. Thanks and enjoy, John.
	Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD

Soren Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 May 2018 Status: Offline Points: 2	Post Options Post Reply Quote Soren Report Post Thanks(0) Quote Reply Posted: 17 May 2018 at 6:09am
	Did this issue ever get resolved? I am interested in getting this motherboard and need ECC memory to work on it.