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Date:      Sun, 24 Nov 2019 10:59:51 +0000
From:      Jeremy Faulkner <gldisater@gmail.com>
To:        Axel Rau <Axel.Rau@Chaos1.DE>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: How to enable ECC with AsRock X470D4U and Ryzen 7
Message-ID:  <2ef705b3-331d-55f3-0450-5acf79e392c4@gmail.com>
In-Reply-To: <156898DA-8443-43B6-B8F9-E45D3252A731@Chaos1.DE>
References:  <1CDE8233-4EC1-47C1-922C-A1BE89EDF342@Chaos1.DE> <4d078c56-b6eb-ce52-95a1-126745580428@gmail.com> <156898DA-8443-43B6-B8F9-E45D3252A731@Chaos1.DE>

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On 2019-11-24 15:43, Axel Rau wrote:
>
>
>> Am 24.11.2019 um 11:32 schrieb Jeremy Faulkner <gldisater@gmail.com 
>> <mailto:gldisater@gmail.com>>:
>>
>>
>> On 2019-10-25 09:59, Axel Rau wrote:
>>> Physical Memory Array
>>> Location: System Board Or Motherboard
>>> Use: System Memory
>>> Error Correction Type: Multi-bit ECC
>>> Maximum Capacity: 128 GB
>>> Error Information Handle: 0x000E
>>> Number Of Devices: 4
>>
>> Error Correction Type: Multi-bit ECC
> Yes, I see this and as the memory controller sits on the CPU, it 
> should work.
> But for reporting ECC errors to the OS, the BIOS must switch some data 
> pathes, which I’m not sure of.
> I suspect this because of the wrong
> Total Width: 128 bits
>
> Axel
> PS: https://lists.freebsd.org/pipermail/freebsd-hardware/2019-October.txt
> ---
> PGP-Key: CDE74120  ☀  computing @ chaos claudius


 From a Ryzen 7 1700 w/o ECC RAM:

Physical Memory Array
         Location: System Board Or Motherboard
         Use: System Memory
         Error Correction Type: None
         Maximum Capacity: 128 GB
         Error Information Handle: 0x0025
         Number Of Devices: 4

--

Jeremy Faulkner




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