Hello back!
I found some interesting infos.
These boards actually boot RDIMM ecc BUT:
Only 1rx8 or 2rx8 rank DIMMs. I Tried anything like 1*&*2rx4 and it doesn’t work.
I tried 8x16gb of these: Samsung M393A2K43CB2-CVF and they’re working except ECC.
I’m now trying to bring ECC menu to see if it’s working. At least, if you don’t care about ECC, they’re still kinda cheap if you can get good deals on them.
Result of booting these 2rx8 RDIMM :
yes:~$ sudo dmesg | grep -i edac
[ 0.498727] EDAC MC: Ver: 3.0.0
[ 13.170241] EDAC sbridge: Seeking for: PCI ID 8086:6fa0
[ 13.170262] EDAC sbridge: Seeking for: PCI ID 8086:6fa0
[ 13.170280] EDAC sbridge: Seeking for: PCI ID 8086:6f60
[ 13.170285] EDAC sbridge: Seeking for: PCI ID 8086:6f60
[ 13.170290] EDAC sbridge: Seeking for: PCI ID 8086:6fa8
[ 13.170294] EDAC sbridge: Seeking for: PCI ID 8086:6fa8
[ 13.170299] EDAC sbridge: Seeking for: PCI ID 8086:6f71
[ 13.170303] EDAC sbridge: Seeking for: PCI ID 8086:6f71
[ 13.170307] EDAC sbridge: Seeking for: PCI ID 8086:6faa
[ 13.170311] EDAC sbridge: Seeking for: PCI ID 8086:6faa
[ 13.170316] EDAC sbridge: Seeking for: PCI ID 8086:6fab
[ 13.170320] EDAC sbridge: Seeking for: PCI ID 8086:6fab
[ 13.170324] EDAC sbridge: Seeking for: PCI ID 8086:6fac
[ 13.170331] EDAC sbridge: Seeking for: PCI ID 8086:6fad
[ 13.170337] EDAC sbridge: Seeking for: PCI ID 8086:6f68
[ 13.170342] EDAC sbridge: Seeking for: PCI ID 8086:6f68
[ 13.170346] EDAC sbridge: Seeking for: PCI ID 8086:6f79
[ 13.170350] EDAC sbridge: Seeking for: PCI ID 8086:6f79
[ 13.170354] EDAC sbridge: Seeking for: PCI ID 8086:6f6a
[ 13.170359] EDAC sbridge: Seeking for: PCI ID 8086:6f6a
[ 13.170363] EDAC sbridge: Seeking for: PCI ID 8086:6f6b
[ 13.170367] EDAC sbridge: Seeking for: PCI ID 8086:6f6b
[ 13.170371] EDAC sbridge: Seeking for: PCI ID 8086:6f6c
[ 13.170377] EDAC sbridge: Seeking for: PCI ID 8086:6f6d
[ 13.170384] EDAC sbridge: Seeking for: PCI ID 8086:6ffc
[ 13.170387] EDAC sbridge: Seeking for: PCI ID 8086:6ffc
[ 13.170392] EDAC sbridge: Seeking for: PCI ID 8086:6ffd
[ 13.170396] EDAC sbridge: Seeking for: PCI ID 8086:6ffd
[ 13.170401] EDAC sbridge: Seeking for: PCI ID 8086:6faf
[ 13.170405] EDAC sbridge: Seeking for: PCI ID 8086:6faf
[ 13.170439] EDAC sbridge: CPU SrcID #0, Ha #0, Channel #0 has DIMMs, but ECC is disabled
[ 13.171937] EDAC sbridge: Couldn't find mci handler
[ 13.173437] EDAC sbridge: Couldn't find mci handler
[ 13.174838] EDAC sbridge: Failed to register device with error -19.
Also:
yes:~$ sudo lshw -c memory
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: 1.A1_0.3.7
date: 05/03/2024
size: 64KiB
capacity: 16MiB
capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi
*-memory
description: System Memory
physical id: 58
slot: System board or motherboard
size: 128GiB
*-bank:0
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 0
serial: 3685969C
slot: DIMM_A1
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:1
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 1
serial: 368594BE
slot: DIMM_A2
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:2
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 2
serial: 3685933E
slot: DIMM_B1
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:3
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 3
serial: 3685933D
slot: DIMM_B2
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:4
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 4
serial: 3685938F
slot: DIMM_C1
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:5
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 5
serial: 36859340
slot: DIMM_C2
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:6
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 6
serial: 36858DC9
slot: DIMM_D1
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-bank:7
description: DIMM DDR4 Synchronous 2667 MHz (0.4 ns)
product: M393A2K43CB2-CVF
vendor: Samsung
physical id: 7
serial: 36858DAE
slot: DIMM_D2
size: 16GiB
width: 72 bits
clock: 2667MHz (0.4ns)
*-cache:0
description: L1 cache
physical id: 6e
slot: CPU Internal L1
size: 1MiB
capacity: 1MiB
capabilities: internal write-back
configuration: level=1
*-cache:1
description: L2 cache
physical id: 6f
slot: CPU Internal L2
size: 4MiB
capacity: 4MiB
capabilities: internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 70
slot: CPU Internal L3
size: 40MiB
capacity: 40MiB
capabilities: internal write-back unified
configuration: level=3
Running my current bios mod for my X99A Godlike MS7883
yes:~$ sudo dmidecode | grep -i BIOS
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.
BIOS Information
BIOS is upgradeable
BIOS shadowing is allowed
BIOS ROM is socketed
BIOS boot specification is supported
BIOS Revision: 5.11
Serial Number: BIOS Version (DokT Bios Mod v0.3.7)
Invalid entry length (16). Fixed up to 11.