From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-x22a.google.com (mail-lb0-x22a.google.com [IPv6:2a00:1450:4010:c04::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1DE3A3B2B5 for ; Thu, 3 Mar 2016 23:48:46 -0500 (EST) Received: by mail-lb0-x22a.google.com with SMTP id cf7so31727736lbb.1 for ; Thu, 03 Mar 2016 20:48:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=3ONwSTS6C3GUUCHGrISNMTNn7Wj4Whr8FM4zeN3NnxE=; b=t35XP+cTTrHHX3qLkoe6lM9QHY0u9A2T1u+ouOtj5zKKGdRzW5KSF+qOGq9iXg3/Jf zPCoDP4gIhZLgilgalA6k6K23fJchkuUE6pvULpMTN14eFNYUmv9LurGzo7ypXE9ej64 LUcs7YY8hyr+l9yhelL/bGWlpKsYVwfddA0XmHzF2CRQjRfYBRZrHyqfNP/V1jVT+AZt R9KWVd1HblnKBQj0J8X9jvO96cBN8DC1x5kx5yomHxiomi6h87tlT4e3mlVWeBHHdbiM +kwqXwRiqEpULkAqfEz5V4odT4lfSKUdp8+iV/NNKjchdGXuJw2jOIV60eHTzhy918Lt M7Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=3ONwSTS6C3GUUCHGrISNMTNn7Wj4Whr8FM4zeN3NnxE=; b=MpQLh6ASek33o0JcE7kr/aXAYJQYOuDcY4vbO5sjxqtAnk/jkok4I58aYIyUtnmi5G 621PccFNa59AYpUScHueJuMDvaMXzy/T7HxxRNlwzoSWohGppOrLDadV8GTamJ+K2xkn YhNkOWxU+QsD4Gb66/OEiY0iY34fNibHPDNte5iuqBLrjtaWEQM9+Mg8+gnwOmMH6oD5 Mx4Gs164BKct1W9SZ/fsSLQpVcy+QhAHYmGsYlWqZui6NWGeWD1N8snhfo9m0IoFlvrK fa1sxXvTokFdZRRXG+B3aQBA6UTdBawvN/Yds/UUuHLpqyB9pBZaAvUx/d1I5trrevpY SXNw== X-Gm-Message-State: AD7BkJJk/mCOSdwtBQPoUbyrqHXQMIsNz3Y+gq7OUs2IVhAyDk9b5hqT/OLbXz0ub8aESg== X-Received: by 10.112.135.39 with SMTP id pp7mr1807333lbb.43.1457066924511; Thu, 03 Mar 2016 20:48:44 -0800 (PST) Received: from bass.home.chromatix.fi (37-33-67-252.bb.dnainternet.fi. [37.33.67.252]) by smtp.gmail.com with ESMTPSA id h72sm273146lfe.33.2016.03.03.20.48.43 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 03 Mar 2016 20:48:43 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) From: Jonathan Morton In-Reply-To: Date: Fri, 4 Mar 2016 06:48:41 +0200 Cc: =?utf-8?Q?Dave_T=C3=A4ht?= , cerowrt-devel Content-Transfer-Encoding: quoted-printable Message-Id: References: <56D8F016.6000100@taht.net> <989E599B-F8F4-4075-88BD-E7B301942853@gmail.com> <73138E8F-046B-49A8-8AE5-5C39ABE52EDA@gmail.com> To: Dave Taht X-Mailer: Apple Mail (2.3112) Subject: Re: [Cerowrt-devel] hardware from hell X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2016 04:48:46 -0000 > On 4 Mar, 2016, at 05:11, Dave Taht wrote: >=20 > So I am hard pressed for space in the general case. "Quiet", and low > power are always my watchwords, also. Yurt couldn't draw more than 350 > watts, for example. If space is the overriding concern, you might stack several identical = machines vertically using standoffs through the mounting holes, and use = PicoPSUs instead of standard ones. That would mostly save you length = rather than width or height, compared to the InWin case, but it=E2=80=99s = something. The limiting factor for height would be either the CPU = heatsink or the NIC. Alternatively, the InWin case can be left horizontal instead of = vertical, and then you can stack identical machines on top of each other = without messing around with standoffs. The AMD box draws at most 25W for the CPU, so the heatsink scarcely has = anything to do, so it=E2=80=99ll be quiet as long as the PSU is. It = certainly draws less power than an Intel-based box, unless it=E2=80=99s = based on one of those (frankly awful) Atoms, and even then it=E2=80=99d = be tricky to find a full-featured Atom machine which reliably stays = below 25W under load. There=E2=80=99s very little active hardware on = the m/board, since the =E2=80=9CCPU=E2=80=9D is actually an SoC, and the = NIC is low-power enough to not require a heatsink. The PicoPSU has the advantage of being fanless, as well as taking up = almost literally no space. The downside is that it (and the 12V brick = to supply it) costs more than the entire InWin case (with PSU) by some = margin. I recently used my old passively-cooled E-450 board (displaced by an = upgrade to a Kaveri APU), a spare SSD, a PicoPSU and a CarTFT case to = build a truly silent PC (which also happens to be very small). That = however leaves no room to add a second Ethernet port - the CarTFT case = has no external slot corresponding to the PCIe slot. It does still have = the ath9k card in the mini-PCIe slot, and I can still attach antennae to = the connectors on the rear panel. Because it is passively cooled, = though, I am keeping it vertical to permit convection through the = heatsink. If you want to copy that, here=E2=80=99s the board - if you can still = find it on sale - and the case: https://www.asus.com/Motherboards/E45M1I_DELUXE/ http://www.cartft.com/catalog/il/1058 - Jonathan Morton