Date: Mon, 27 Aug 2018 17:44:04 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: Stefan Blachmann <sblachmann@gmail.com> Cc: Meowthink <meowthink@gmail.com>, freebsd-hackers@freebsd.org, Mitchell <mitchell@wyatt672earp.force9.co.uk> Subject: Re: Ryzen Build Problem Message-ID: <tkrat.89925e064de88053@FreeBSD.org> In-Reply-To: <CACc-My2%2B%2BVEWrbrAZBiavOC3L2L5Q3ARWBFaxNkX7mx8FZbatA@mail.gmail.com> References: <CABnABoZA4DUOFfr7JdbbBAWxak3=ge6zX0HXtu1RffQH7tSb2Q@mail.gmail.com> <CAOa8eG4UGCo3Evz7sp7w72irtP2yb=-9-KURrvCQGu6Z-1HwVA@mail.gmail.com> <32e008cf-93d3-944d-9b11-e56f1bb425ef@wyatt672earp.force9.co.uk> <CABnABob%2BiCFvQhxCjJ7Uj4M6h0mffNoBox0%2BpUFWR9P4GRP9ww@mail.gmail.com> <CACc-My2%2B%2BVEWrbrAZBiavOC3L2L5Q3ARWBFaxNkX7mx8FZbatA@mail.gmail.com>
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On 27 Aug, Stefan Blachmann wrote: > It is remarkable that AMD's list only contains "brands" like Crucial > and the like, but not a single first-party-manufacturer. > Why? Because the first-party-manufacturers do not sell bad memories, > for simple reputation reasons. > > The question where all these masses of B-grade selection chips remain, > which the memory manufacturers reject for use under their own brand, > is an old taboo in the industry. > > My personal impression is that these are dumped via these third party > memory module manufacturers. > The typical gamer/overclocker customer unaware of this will readily > explain away problems on her non-ECC systems equipped with memory > chips rejected by the original manufacturer as "the usual Windows > crashes". > The consumers will even happily take the fancy "coolers" on the > modules as "sign of quality and worthiness", whose actual function is > to hide the crap inside. > > Thus my personal advice: > Do not use memory modules from third-party-manufacturers. > The time and data you lose does not justify the savings when buying > stuff from B-grade-stuff remarketers. > Only buy first-party-memory modules, i.e. Samsung, Hynix, Micron etc. > (If you really insist on using third-party-modules, take Kingston, who > have a comparatively small history of using unreliable chips compared > to other "brands".) Crucial == Micron. There is a Micron copyright notice at the bottom of the Crucial home page, and a link to Crucial at the bottom of the Micron home page. When I put together my Ryzen machine last year, I purchased the Crucial DDR4-2400 ECC RAM that was listed on the motherboard vendor's qualified list. I also looked up the part number for the Micron-branded equivalent, but didn't find any available for retail sale. I've used a fair amount of Kingston RAM in the past, but at the time they didn't have DDR4 ECC RAM in that speed grade.
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