In the ASRock AB350 Pro4 BIOS, SVM and IOMMU can be enabled. When done so, lscpu under kernel 4.10 shows:
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 16
On-line CPU(s) list: 0-15
Thread(s) per core: 2...
Bought Asrock AB350 Pro4 with Crucial CT2K4G4WFS8266 2x4GB 2666 MHZ ECC. Under linux kernel 4.10 worked out of the box (BIOS 1.30) with ECC as reported by kernel module "EDAC amd64: DRAM ECC enabled". However upgrading to BIOS 2.20 broke this, reporting something like "ECC disabled in BIOS". I...
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