List of X99 motherboards compatible with ECC memory ?

Riok

Member
Dec 14, 2017
39
2
16

Hello,

There are two types of X99 motherboards compatible with ECC memory:
- The ones officially compatible
- The ones not officially compatible

If you have tested your board with ECC memory, please report it here. (With Memory serial number and bios version if possible).

It's just about ECC or REG ECC compatibility, not necessarily having the error correction actually working.

Officialy compatible

ASRock Fatal1ty X99X Killer
ASRock X99 Taichi
ASRock X99 Extreme 4

MSI X99A RAIDER
MSI X99A TOMAHAWK
MSI X99A SLI (Not the plus version !)

ASUS X99-E WS
ASUS X99-M WS

Un-Officialy compatible

All tested ASRock boards - Reported compatible here.

Boards in the MSI X99A line list the xeon as being compatible so chances are ECC also is.

All tested ASUS boards - Reported compatible here.
ASUS X99 Deluxe - Reported compatible here.
ASUS X99-a 2 - Reported compatible here.

MSI X99A Gaming Pro Carbon - Reported compatible in this thread
 
Last edited:

alkersan

Junior Member
Jun 28, 2018
1
0
1
CPU: Xeon E5-1650 v4
Board: ASRock X99 Taichi
Memory: 256GB comprised of 8 sticks KVR21R15D4/32 (ECC Registered 32GB 2133MHz).
Before picking this memory set - I've successfully booted the system with a single stick KVR24R17D4/32 (2400MHz equivalent), but due to limited stock had to fall back to 2133
 

Riok

Member
Dec 14, 2017
39
2
16
CPU: Xeon E5-1650v3 ES QEZ0
Board: MSI X99A Gaming Pro Carbon
Memory: 2x HMA451R7MFR8N-TF Hynix 4GB PC4-17000 DDR4 2133MHz ECC REG
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
6,029
1,395
136
Bump! I have an X99 Deluxe with a 1660v3, and I am thinking of upgrading it with some 32GB RDIMMs. Unfortunately, they are still not very cheap.
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
6,029
1,395
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A small update here, I got a deal on a set of used Samsung DDR4 2133 ECC RDIMMs, for a total of 256GB (8x32GB)! Installed them all in the motherboard, and it works just fine, my CPU OC is still working even! Memtest86 was done with 4 passes, took nearly 2 days though.

Funny thing though, the first time I booted Windows 10, I noticed the boot drive, a 512GB 950 Pro, was almost completely full. Turns out Windows had supersized the page file LOL. I was sure to fix that.
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
6,029
1,395
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@aigomorla I figured you might be interested in this. If the X58 board on my NAS dies, it will have a worthy successor :p
 

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