Hi all,
both, the mainboard AsRock X470D4U (with recent firmware P3.10)
and Ryzen 7 3700X CPU should work with ECC RAM (while not officially supported).
RAM is KSM26ED8/16ME DDR4-2666 ECC DIMM.
dmesg and dmidecode do not indicate ECC (see below), I think.
Data path should show additional ECC bits.
There is only one related BIOS setting, I’m aware of:
The only Bios setting, I tried was:
Advanced -> AMD CBS -> UMC-> DDR4 -> Common RAS -> ECC conf _DRAM ECC enable
Changing this from AUTO to ENABLED makes no difference.
Any Bios related hint welcome!
Looking at 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.
Questions:
Is ECC enabled?
If not, how to enable it?
If yes, why does FreeBSD does not recognice it?
Thanks, Ajr
PS: I'm aware that this is release candidate OS, but should be near to release (-;
PPS: parts from dmesg and dmidecode:
. . .
. . .
both, the mainboard AsRock X470D4U (with recent firmware P3.10)
and Ryzen 7 3700X CPU should work with ECC RAM (while not officially supported).
RAM is KSM26ED8/16ME DDR4-2666 ECC DIMM.
dmesg and dmidecode do not indicate ECC (see below), I think.
Data path should show additional ECC bits.
There is only one related BIOS setting, I’m aware of:
The only Bios setting, I tried was:
Advanced -> AMD CBS -> UMC-> DDR4 -> Common RAS -> ECC conf _DRAM ECC enable
Changing this from AUTO to ENABLED makes no difference.
Any Bios related hint welcome!
Looking at 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.
Questions:
Is ECC enabled?
If not, how to enable it?
If yes, why does FreeBSD does not recognice it?
Thanks, Ajr
PS: I'm aware that this is release candidate OS, but should be near to release (-;
PPS: parts from dmesg and dmidecode:
Code:
---<<BOOT>>---
Copyright (c) 1992-2019 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 12.1-RC1 r353428 GENERIC amd64
FreeBSD clang version 8.0.1 (tags/RELEASE_801/final 366581) (based on LLVM 8.0.1)
VT(efifb): resolution 800x600
CPU: AMD Ryzen 7 3700X 8-Core Processor (3593.32-MHz K8-class CPU)
Origin="AuthenticAMD" Id=0x870f10 Family=0x17 Model=0x71 Stepping=0
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
AMD Features2=0x75c237ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX,<b30>>
Structured Extended Features=0x219c91a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,PQM,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA>
Structured Extended Features2=0x400004<UMIP,RDPID>
XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
AMD Extended Feature Extensions ID EBX=0x10eb757<CLZERO,IRPerf,XSaveErPtr>
SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=32768
TSC: P-state invariant, performance statistics
real memory = 68719476736 (65536 MB)
avail memory = 66818646016 (63723 MB)
Code:
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