No ECC w/Xeon E-2288G

hackpcman

New Member
Oct 10, 2019
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System specs:
CPU: Intel Xeon E-2288G
Motherboard: Gigabyte C246M-WU4
Memory: Crucial CT16G4WFD8266 (on support list)
BIOS: F3 (latest)
OS: RHEL8 (latest kernel)

Problem:
I don't think ECC is working? Please see below. Do you have any advice? Something I am missing? I'm getting ready to buy an X11SCA-F motherboard instead. Sadly three months waiting for the E-2288G means I can't return the C246M-WU4. Many kind thanks!

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.

Handle 0x003A, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: Single-bit ECC
Maximum Capacity: 64 GB
Error Information Handle: Not Provided
Number Of Devices: 4

Handle 0x003B, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: 128 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: ChannelA-DIMM0
Bank Locator: BANK 0
Type: DDR4
Type Detail: Synchronous
Speed: 2666 MT/s
Manufacturer: Micron
Serial Number:
Asset Tag:
Part Number: 18ASF2G72AZ-2G6D1
Rank: 2
Configured Memory Speed: 2666 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
 

EffrafaxOfWug

Radioactive Member
Feb 12, 2015
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I don't know what kernel you're running, but does edac-util report anything ECC-wise?

A quick search through LKML shows that the patch for coffee lake support for EDAC (basically just the device IDs) only landed in june.
 
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hackpcman

New Member
Oct 10, 2019
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I don't know what kernel you're running, but does edac-util report anything ECC-wise?

A quick search through LKML shows that the patch for coffee lake support for EDAC (basically just the device IDs) only landed in june.
Thanks!! I definitely missed that. Confirmed - there is no edac Coffee Lake support in my kernel.

[root@server linux-4.18.0-80.11.2.el8.x86_64]# grep CFL drivers/edac/ie31200_edac.c
[root@server linux-4.18.0-80.11.2.el8.x86_64]#
 
Last edited:

hackpcman

New Member
Oct 10, 2019
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Just to confirm - although my Linux kernel doesn't, Memtest86 shows that ECC is enabled. Thanks again EffrafaxOfWug!