Ah, right. OTOH, I haven’t seen any 64gb ECC UDIMMs being announced, so we can only speculate.
Non-ECC is fine for me, I just want the “cheap” upgrade from 128GB to 256GB without breaking the bank on HEDT.
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so I’ve always bought the fastest RAM on the QVL, but with such a disparity between single and double DIMM speeds; I am gonna have to find a way to make do with 96 GB til 128 is 5600 stable and on at least 1 QVL.
Yeah, we have a shop so I can always down clock it and sell incompatible stuff in a compatible build to a client to minimize losses, but until I have a running and qualified EPYC AM5 build myself, I don’t sell it to my clients.
to that end, my work workstations rock ECC (registered now, unregistered soon for the new platform). ECC contributes to stability and uptime, beyond data integrity. It’s typically not such a massive price difference as it is with UDIMMs as RDIMMs are made at least a few orders of magnitude more, but still a worthy investment when compared to total build cost.
Are you planning on running EPYC or consumer AM5?
Consumer AM5. Will likely grab a 9950x to go with it.
I’ve already seen non-ECC 192GB listings in some mobos QVLs at 5200~5600MHz, so that makes me hopeful that stuff will just work without major headaches.
I guess your situation is different since it’s not something for personal use, but rather to others where you will be held accountable. I personally don’t really mind ECC for my use case.
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Quad DIMM listings or just for two of the four DIMMs in the kits? Haven’t seen the former yet, the latter’ve been on QVL for over a year.
Quad kits, yeah, but those are 96 GB QVLs as the socket support’s 1,2. It’d need to be 1,2,4 to include use of all 192 GB in the kits.
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That is a good point. I would have overlooked that detail unless you pointed it out.
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Totally agree. There is just one problem. The connector isn’t fragile.
Is it more fragile? We have seen no evidence, but we “know” from an engineering standpoint, it probably is.
But just because it is more fragile, does not mean it is fragile.
There is no evidence that suggests a significantly higher failure rate.
No matter how deep we go into obscure temp details or how many outdated PCI letters we misinterpret.
The B650 ProArt is only listing dual 16 GB 4800 MT/s ECC UDIMMs on the QVL
meanwhile the B650D4U lists dual 48GB 5600 MT/s ECC UDIMMs in the manual
server / workstation boards for the win
I was just speaking from my personal experience and my overall comfort level with the connector. You’re right that it isn’t fragile from an objective standpoint. But when I compare the two connectors, I would rather use an 8-pin connector.
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Ohh, thanks for pointing this out. That same motherboard does list it like so for Ryzen 7000:
The x670e and x870e variants also are similar where they show this for ryzen 7000, but no options for ryzen 9000, weird.
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Yeah. It’d be nice if there was some way to know whether four DIMMs were tested and failed or if it just hasn’t been tested. Could also be silicon lottery with the IO die packaged with the Raphael CCD(s) used for the QVL testing versus the one with the Granite Ridge CCD(s). Or, knowing Asus, the four socket entries may be false claims.
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