$ dmesg | grep -i edac
[ 17.854378] EDAC amd64: Node 0: DRAM ECC enabled.
[ 17.854380] EDAC amd64: F17h detected (node 0).
[ 17.854417] EDAC MC: UMC0 chip selects:
[ 17.854418] EDAC amd64: MC: 0: 0MB 1: 0MB
[ 17.854419] EDAC amd64: MC: 2: 8192MB 3: 0MB
[ 17.854420] EDAC amd64: MC: 4: 0MB 5: 0MB
[ 17.854420] EDAC amd64: MC: 6: 0MB 7: 0MB
[ 17.854423] EDAC MC: UMC1 chip selects:
[ 17.854423] EDAC amd64: MC: 0: 0MB 1: 0MB
[ 17.854424] EDAC amd64: MC: 2: 8192MB 3: 0MB
[ 17.854425] EDAC amd64: MC: 4: 0MB 5: 0MB
[ 17.854426] EDAC amd64: MC: 6: 0MB 7: 0MB
[ 17.854426] EDAC amd64: using x8 syndromes.
[ 17.854427] EDAC amd64: MCT channel count: 2
[ 17.854553] EDAC MC0: Giving out device to module amd64_edac controller F17h: DEV 0000:00:18.3 (INTERRUPT)
[ 17.854572] EDAC PCI0: Giving out device to module amd64_edac controller EDAC PCI controller: DEV 0000:00:18.0 (POLLED)
[ 17.854573] AMD64 EDAC driver v3.5.0
$ edac-ctl --mainboard
edac-ctl: mainboard: ASRock AB350 Pro4
$ sudo edac-util --report=full
mc0:noinfo:all:UE:0
mc0:noinfo:all:CE:0
$ sudo dmidecode -t memory
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.
Handle 0x000E, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: Multi-bit ECC
Maximum Capacity: 16 GB
Error Information Handle: 0x000D
Number Of Devices: 4
Handle 0x0015, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000E
Error Information Handle: 0x0014
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: Unknown
Set: None
Locator: DIMM 0
Bank Locator: P0 CHANNEL A
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Unknown
Serial Number: Unknown
Asset Tag: Not Specified
Part Number: Unknown
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: Unknown
Handle 0x0017, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000E
Error Information Handle: 0x0016
Total Width: 128 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM 1
Bank Locator: P0 CHANNEL A
Type: DDR4
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 2400 MHz
Manufacturer: Kingston
Serial Number: XXXXXXXXXXX
Asset Tag: Not Specified
Part Number: 9965643-006.A01G
Rank: 1
Configured Clock Speed: 1200 MHz
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x001A, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000E
Error Information Handle: 0x0019
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: Unknown
Set: None
Locator: DIMM 0
Bank Locator: P0 CHANNEL B
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Unknown
Serial Number: Unknown
Asset Tag: Not Specified
Part Number: Unknown
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: Unknown
Handle 0x001C, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000E
Error Information Handle: 0x001B
Total Width: 128 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM 1
Bank Locator: P0 CHANNEL B
Type: DDR4
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 2400 MHz
Manufacturer: Kingston
Serial Number: XXXXXXXXXXX
Asset Tag: Not Specified
Part Number: 9965643-006.A01G
Rank: 1
Configured Clock Speed: 1200 MHz
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
$