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Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

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Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#51
post #30

I think one issue is the amount, I was under the impression am4 was only going to support 64gb.

64GB is also the limit of Intels desktop i7 processors. I don't think Ryzen is intended as server processors, so 64GB should cover the target market very well.

Nope. X99 i7s support 128GB and quad channel memory. Most of X99 boards come with 8 slots as well. However the setup is way over-priced, so I'm going to preorder Ryzen on day 1 if available. It just seems like phenomenal value.

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#52
This smells:

> - Supports HDMI 1.4b

Erm, Bristol Ridge already has 2.0 http://www.anandtech.com/show/10705/amd-7th-gen-bristol-ridg...

> Supports DisplayPort with max. resolution 4096 x 2160 @ 60 Hz

That's DisplayPort 1.2. No way. It's going to support DP 1.4, Polaris already does.

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#53
post #25

Earlier quoted context omitted.

That's demonstrably not true, AMD has supported ECC more or less across the board since the Athlon64. Enterprises may be professional cost cutters, but before that they're professional ass coverers, otherwise Oracle would have died 20 years ago.

No one got ever fired for buying Intel Even if Ryzen will be twice as fast enterprise will still go with Intel. Unless some company with reasonable size (like DigitalOcean or Linode) will adopt Ryzen in their servers and brag about it.

Microsoft used (and still does) AMD CPUs for their first generation of Azure cloud instances. This did not do much in promoting AMD.

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#54
post #25

Earlier quoted context omitted.

That's demonstrably not true, AMD has supported ECC more or less across the board since the Athlon64. Enterprises may be professional cost cutters, but before that they're professional ass coverers, otherwise Oracle would have died 20 years ago.

No one got ever fired for buying Intel Even if Ryzen will be twice as fast enterprise will still go with Intel. Unless some company with reasonable size (like DigitalOcean or Linode) will adopt Ryzen in their servers and brag about it.

We are absolutely looking at buying large quantities of (Ry)zen, if the numbers work out. We're most concerned about multi-core / NUMA penalty compared to Intel.

I assume we also get some sort of volume discount with Intel that may not be reflected in consumer pricing. But maybe we would get the same with AMD.

Also, CPUs are a tiny tiny portion of our costs of goods sold. So in the end, it doesn't matter too much how expensive Intel is relative to AMD. That said, we would prefer to see competition for the long run.

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#55
post #7

No excuse now, Intel . Get to it.

I wonder if they have. I don't know if this is water-cooler gossip, but I have heard they are going to have another release in 6-8 months and Kaby lake is simply a placeholder.

I wonder if they are far ahead enough to drop something that beats Ryzen on every metric including price. Either way, that would push it up quick.

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#56

Who needs a Xeon now? The only chink in the armour here is the 64GB max, which admittedly is bad for the science/Machine learning folks, but the vast majority of these chips is used for databases, web serving, app serving, etc, for which these ECC-enabled Ryzens are a game changer on price. Cluster them up on premises or in cloud, and you're looking at a total winner, especially that the 16GB dimms are still much che…

The 64GB limit you quote appears on one vendor's motherboard spec sheet. Given that this board also supports older generation CPUS, perhaps this limit is a limit of the motherboard, and not the Ryzen CPU itself? Do we know anything more about what Ryzen supports in terms of memory? Eg, number of memory channels, speed, etc?

It is a limitation of the chip because it only has two memory channels. http://pcworld.com/article/3149118/computers/what-we-know-ab...

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#57
post #7

No excuse now, Intel . Get to it.

I wonder if they have. I don't know if this is water-cooler gossip, but I have heard they are going to have another release in 6-8 months and Kaby lake is simply a placeholder. I wonder if they are far ahead enough to drop something that beats Ryzen on every metric including price. Either way, that would push it up quick.

Evidently, while Cannonlake (the 10nm next gen chips for low-power SKUs) got punted to 2018 [0], Coffee Lake (the 14nm next gen chips for desktops) are still on for 2017 [1].

[0] - https://www.fool.com/investing/2017/02/18/intel-corporation-...

[1] - https://www.technewsinc.com/intel-8th-gen-coffee-lake-proces...

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#59

This maybe true for later models but not initial offers. If you look a the Linux 4.10 change log [1] you will see that while zen supports ECC, it ignores the error correction message. So you can use ECC ram, but you get none of the benefit of ECC ram [1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux....

That looks like it just adds a class of errors, "deferred", without explanation, though this commit [1] implies that these are for ECC errors whose handling was not urgent, and does not specify further how those would occur (unless the MC knows something about the page being used for cache/re-readable data or something, so it can just drop the page on the floor and reread it).

[1] - https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux....

Re: Asus Prime X370-PRO specs suggest AMD Ryzen processors may support ECC memory

#60
post #18

Earlier quoted context omitted.

ECC support in CPU is just a half of success. Now somebody have to convince motherboard manufacturers to enable it. It was the same thing with previous AMD CPUs. They all had ECC support but there was virtually no motherboards that would support it.

Yes, I still remember what a PITA it was to identify a motherboard that both supported ECC and allowed enabling it in the BIOS for my last AMD build (circa 2007). I still remember reading about boards that offered "ECC support", but had no way to enable it in the BIOS, change the scrubbing time, etc. And how relieved I was that whatever I wound up with did indeed have full ECC support. Then again, buying Xeon boards…

There are plenty of SuperMicro desktop boards that include sound (and support ECC).
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