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A comment on My Home Lab Server with 20 Cores / 40 Threads and 128 GB Memory. Parent comment

Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by pedrocr on Tuesday August 13, 2019 @01:25PM (#20688030)
128GB of ECC RAM itself is going to be ~800-1000$ as far as I can find some to fit in a Ryzen build. So it won't be trivial to reach the price point for a full build although Ryzen is clearly great value anyway.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by greatjack613 on Tuesday August 13, 2019 @01:28PM (#20688075)
True, but only if ECC is necessary. In this case where he is mainly using the server for experiments and to try software, regular ram will do absolutely fine.

Here is a 128gb kit for under $600 dollars. https://www.newegg.com/corsair-128gb-288-pin-ddr4-sdram/p/N8...

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by close04 on Tuesday August 13, 2019 @01:36PM (#20688164)
> only if ECC is necessary

If your workloads require 128GB of RAM then you probably want ECC. You'd be skimping in the wrong place.

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by mciancia on Tuesday August 13, 2019 @03:54PM (#20689573)
This is kit of 8 sticks. Ryzen supports max of 4 dimms, so you need 32GB per stick.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by ska on Tuesday August 13, 2019 @02:03PM (#20688542)
> True, but only if ECC is necessary.

big "if" there really, and that makes it an apples-and-oranges comparison IMO.

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by abarringer on Tuesday August 13, 2019 @02:31PM (#20688836)
I received a price quote on HPE ECC Server RAM this week from HPE that is $230 per 64GB stick. So make that $500 with shipping and tax for 128GB.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by pedrocr on Tuesday August 13, 2019 @02:52PM (#20689036)
Consumer Ryzen requires unbuffered ECC RAM so most usual RAM options are not compatible.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by mamon on Tuesday August 13, 2019 @03:04PM (#20689143)
SUPPORTS ECC RAM, but does not require it. You can use plain old RAM chips with it.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by kadoban on Tuesday August 13, 2019 @03:48PM (#20689543)
Grandparent's point, presumably, was that _buffered_ ECC RAM would not work. Which is definitely correct. I'm not sure if the sticks in question are buffered or not though.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by snuxoll on Tuesday August 13, 2019 @04:38PM (#20689986)
Likely registered, not buffered - FBDIMMs fell out of favor some time ago. Technically still “buffered”, but only the control lines and it maintains electrical compatibility with UDIMMs.
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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by kadoban on Tuesday August 13, 2019 @05:03PM (#20690221)
Ah, thanks for that. I looked up the difference, I'll have to update my terminology.
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