Hi all, I have a new install of Ryzen 7 3700X on a Asrock X470D4U motherboard. The OS is FreeBSD 12.1. I try to find out, if ECC enabled.
On a Xeon E5 CPU, dmidecode shows Total Width: 72 bits und Data Width: 64 bits.
72-64=8; These are the 8 parity bits.
The Ryzen CPU shows Total Width von 128 Bit und Data Width: 64 bits.
Is this a bug in the Bios or in demidecode or is ECC not enabled?
Thanks, Ajr
PS: I get:
root@b5:~ # dmidecode -t memory
# dmidecode 3.2
# SMBIOS entry point at 0xed2b3000
Found SMBIOS entry point in EFI, reading table from /dev/mem.
SMBIOS 3.2 present.
Handle 0x000F, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: Multi-bit ECC
Maximum Capacity: 128 GB
Error Information Handle: 0x000E
Number Of Devices: 4
Handle 0x0017, DMI type 17, 84 bytes
Memory Device
Array Handle: 0x000F
Error Information Handle: 0x0016
Total Width: 128 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: DIMM 0
Bank Locator: P0 CHANNEL A
Type: DDR4
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 2666 MT/s
Manufacturer: Kingston
Serial Number: E72F267D
Asset Tag: Not Specified
Part Number: 9965745-002.A00G
Rank: 2
Configured Memory Speed: 2400 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Memory Technology: DRAM
Memory Operating Mode Capability: Volatile memory
Firmware Version: Unknown
Module Manufacturer ID: Bank 2, Hex 0x98
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: 16 kB
Cache Size: None
Logical Size: None
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