Ecc memory on non ecc mobo

[Andreaskhoi]

So I was wondering if my MSI b450 tomahawk max II could run ecc memory 

I got some really good deals for some ecc memory $40 for 4x16gb ecc

[RONOTHAN##]

Will it work? Depends.

 

Will it work as ECC? Nope.

 

If the memory is unbuffered (unlikely if it's that cheap) it should function in that board. If it's buffered like a lot of ECC, it just won't function in that board. What kit exactly are you trying to run?

[Andreaskhoi]

6 minutes ago, RONOTHAN## said:

Will it work? Depends.

 

Will it work as ECC? Nope.

 

If the memory is unbuffered (unlikely if it's that cheap) it should function in that board. If it's buffered like a lot of ECC, it just won't function in that board. What kit exactly are you trying to run?

Four of Samsung's pc4-2133p-ra0-10

 

[RONOTHAN##]

4 minutes ago, Andreaskhoi said:

Four of Samsung's pc4-2133p-ra0-10

 

A bunch of quick googling says that is a kit of load reduced memory. Those definitely won't work on that board.

[LIGISTX]

15 minutes ago, Andreaskhoi said:

So I was wondering if my MSI b450 tomahawk max II could run ecc memory 

I got some really good deals for some ecc memory $40 for 4x16gb ecc

Where did you get that deal?!? I need some DDR4 ECC for my homelab and would buy that immediately. 

[Andreaskhoi]

Just now, RONOTHAN## said:

A bunch of quick googling says that is a kit of load reduced memory. Those definitely won't work on that board.

Ok, thx for answers

[LIGISTX]

Just now, RONOTHAN## said:

A bunch of quick googling says that is a kit of load reduced memory. Those definitely won't work on that board.

Hmm, what is load reduced? I am actually curious if I’d be able to use this. Been waiting for DDR5 before I upgrade my homelab, but if I can get another few years out of it for cheap that would be nice. I am running into RAM limitations quickly. 

[RONOTHAN##]

1 minute ago, LIGISTX said:

Hmm, what is load reduced? I am actually curious if I’d be able to use this. Been waiting for DDR5 before I upgrade my homelab, but if I can get another few years out of it for cheap that would be nice. I am running into RAM limitations quickly. 

I'm not great with actual specifics, but it's another way of getting higher capacity in a single DIMM module and on the memory controller. It basically offloads some of the computation from to memory controller to the memory modules themselves, allowing for higher overall capacities at the expense of higher power draw and latency. The motherboard and CPU need to have full support for it, and it pretty much limits you to Xeon and Epyc platforms. Some specifics in there about how it works might be wrong, it's been a while since I looked it up, but that's how it effects stuff.

[Windows7ge]

So long as they're Unbuffered (UDIMM) and not Registered (RDIMM).

 

UDIMM ECC will work. Weather or not you'll get ECC support is hard to say. It's only validated on the AMD PRO lineup and last I checked those are annoying to get a hold of but it was never stated that ECC was disabled on the normal lineup either so...take that as you will.

 

If they're RDIMM your system will not POST period.