From owner-freebsd-stable@freebsd.org Sun Jan 28 20:28:51 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 84D46EDD672 for ; Sun, 28 Jan 2018 20:28:51 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from mx2.catspoiler.org (mx2.catspoiler.org [IPv6:2607:f740:16::d18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "amnesiac", Issuer "amnesiac" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 194396D1C4 for ; Sun, 28 Jan 2018 20:28:51 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from gw.catspoiler.org ([76.212.85.177]) by mx2.catspoiler.org (8.15.2/8.15.2) with ESMTPS id w0SKTIHl013980 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 28 Jan 2018 20:29:20 GMT (envelope-from truckman@FreeBSD.org) Received: from mousie.catspoiler.org (mousie.catspoiler.org [192.168.101.2]) by gw.catspoiler.org (8.15.2/8.15.2) with ESMTPS id w0SK8qcG096633 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 28 Jan 2018 12:28:41 -0800 (PST) (envelope-from truckman@FreeBSD.org) Date: Sun, 28 Jan 2018 12:28:41 -0800 (PST) From: Don Lewis Subject: Re: Ryzen issues on FreeBSD ? To: Pete French cc: freebsd@hda3.com, nimrodl@gmail.com, freebsd-stable@freebsd.org, rroot@rootautomation.com In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=us-ascii Content-Disposition: INLINE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Jan 2018 20:28:51 -0000 On 28 Jan, Pete French wrote: >>> I'm about ready to have a party. My Ryzen 5 1600 has been up for over 8 >>> days so far after changing the memory to a slower speed. System load >>> hovers around .3 >> >> I couldn't find an easy way to down-speed my memory in the bios :( > > Out of interest, what motherboards are people using ? I still havent > built my test system, desite being the OP in the thread, but I have > an MSI B350 Tomahawk as the test board. Gigabyte AX370 Gaming 5. I'd be wary of the B350 boards with the higher TDP eight core Ryzen CPUs since the VRMs on the cheaper boards tend to have less robust VRM designs. Personally I won't put together a system without ECC RAM both for overall reliability and also the fact that the error reporting will immediately flag (or eliminate) RAM issues when the system is unstable. That pretty much confined my motherboard choices to the higher end X370 motherboards. I think only ASRock makes a B350 motherboard with ECC support. There's no reason that ECC support couldn't be universal other than product differentiation so that the motherboard manufacturers can collect more $$$ from anyone who cares about this feature.