From owner-freebsd-stable@freebsd.org Wed Jan 24 13:21:52 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 DEE17ED3B7B for ; Wed, 24 Jan 2018 13:21:51 +0000 (UTC) (envelope-from nimrod@nimrod.is-a-geek.net) Received: from mail-yb0-x22a.google.com (mail-yb0-x22a.google.com [IPv6:2607:f8b0:4002:c09::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7D18A88ECB for ; Wed, 24 Jan 2018 13:21:51 +0000 (UTC) (envelope-from nimrod@nimrod.is-a-geek.net) Received: by mail-yb0-x22a.google.com with SMTP id k127so1499680ybc.12 for ; Wed, 24 Jan 2018 05:21:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KgReq6wxGj9mJKCTB1S8vJuoWBpJTewxhShaeFGB2y4=; b=bNcDDXXJnW/aKJTChPJx8RAiTxntecJL1dhS/NddahWunqdb3Bi8z1x0xbY1vfshDZ GdQp7IhlijSr1JGEyXSzMlaJFnPK0qR0hNocZN0DbxXAyTjhRoUWKwcq9sMcAuHmaCQ+ yjdXMffzAYA4Y5Y/foR95X9r6aqjEJ2h9n0TO5mOw6R1hcCEvNlJ10Mql7LqJglqRk3N rvqTeIqw8EWcBudY5/EB5SDfsATXdwj8f8exhK3Dc3yNNzFrhkcpEfyCMbxpaTbLVoQx yFuYH7CSdbJSW3qvYMt6Qk3Nd50DEtfN13UFiAckAoqG3lM4ANkgtkVUPfUjwWgvsbB3 2Pig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KgReq6wxGj9mJKCTB1S8vJuoWBpJTewxhShaeFGB2y4=; b=OjsXXAbWhMg7VbeapFgyvW8hXebi85KZ+Z+7M+nziOgtJ6+dbIRfsJaaCMjQH4F1jy OaKPmkv0YEgEYvEpsm4WuUBlUrwvqFoFUX6LqyTwKN6/4QM97OlcP0OulNQo9EEIsmOI FKwV7E/tndgbfWck1jZSxXCr0d4yCvXYIgcLsKiDxa4kk57bk/CSjSwa5ej2cnhCKl2y GOqDVzM/IqmJziCeFCtDJhZuKkAtJmbligH/7fL+IAef8Eo6EqD+Z1RRxXUETvAbmWPz 5uDP8KjUIF/EeIz2ixpza4k8BziQRf457iOODcKEWlKxBTC9XNxYPfVZV1YN1iBcK6ta L6xQ== X-Gm-Message-State: AKwxyteUUglI4L5pzHwvdvwaQ5wMGa3m2PWOPwU6d70qiw5DvY5Eb1IG gOoAo9aMS/VEM6stYxtoudQam99fOJxMjRulGpmcSmO4 X-Google-Smtp-Source: AH8x224QUJoHb0w0ipN+iSrFe+++FfV8Ovrrg1nF3IOexwVFTgSRCgNhQYUC0/ABqkQj7p6Tw00EZtiS22+leFq026g= X-Received: by 10.37.147.144 with SMTP id a16mr5172388ybm.137.1516800110268; Wed, 24 Jan 2018 05:21:50 -0800 (PST) MIME-Version: 1.0 References: <8e842dec-ade7-37d1-6bd8-856ea1a827ca@sentex.net> <3b625072-dfb3-6b4f-494d-7fe1b2fa554c@ingresso.co.uk> <2c6ce4dd-f43c-7c40-abc2-732d6f8996ec@sentex.net> <795dbb79-3c18-d967-98b9-5d09a740dbfe@sentex.net> <9b769e4e-b098-b294-0bce-8bb1c42e8a59@rootautomation.com> <508a8c83-a449-3c5d-c3bf-b308d91c80c0@bsquare.com> In-Reply-To: From: Nimrod Levy Date: Wed, 24 Jan 2018 13:21:39 +0000 Message-ID: Subject: Re: Ryzen issues on FreeBSD ? To: Mike Pumford Cc: freebsd-stable@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 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: Wed, 24 Jan 2018 13:21:52 -0000 If my google-fu is any good today, DDR3 maxes out at 2133. DDR4 seems to go up to 3200[1]. The motherboard claims to support all speeds. This RAM is supposed to be DDR4-2400, but if it keeps things happy, I'll run it at 2133. [1] https://www.kingston.com/us/memory/ddr4 On Wed, Jan 24, 2018 at 7:28 AM Mike Pumford wrote: > On 24/01/2018 12:11, Nimrod Levy wrote: > > The RAM was detected by the MB as 2400. I didn't change it until I set > > it to the slower speed. > > > I guess the Intel motherboards I have are more conservative then. They > default to the standard RAM profile (slower than what it is sold as) and > you have to explicitly enable the faster profiles (which do also come > from data read from RAM). So it seems like your BIOS vendor is picking > the faster profile as a default. > > I've got a couple of intel systems like this (one windows and one BSD) > and neither ran stable with the faster RAM profiles. > > From what I read at the time 2133 is the official upper limit of the > DDR4 standard. Any speed faster than that is an overclock profile. > > Mike > > -- > Mike Pumford | Senior Software Engineer > > T: +44 (0) 1225 710635 <+44%201225%20710635> > > BSQUARE - The business of IoT > > www.bsquare.com > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > -- -- Nimrod