From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1PMFYc-00064W-L9 for garchives@archives.gentoo.org; Sat, 27 Nov 2010 07:50:54 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 51D98E0671; Sat, 27 Nov 2010 07:48:51 +0000 (UTC) Received: from mail-gy0-f181.google.com (mail-gy0-f181.google.com [209.85.160.181]) by pigeon.gentoo.org (Postfix) with ESMTP id 2E833E0671 for ; Sat, 27 Nov 2010 07:48:51 +0000 (UTC) Received: by gyh3 with SMTP id 3so15362383gyh.40 for ; Fri, 26 Nov 2010 23:48:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type; bh=dfSEOygOIXetT3TRonj2BQ5vIppfoS7pNd/a39AZJbk=; b=TEMYugAln+leaqAVHSPRjHzaK9WXOnauXKioptC0I8PCJt9oMZGCBgyLHUm//AppK7 wEnq3NCrqxvuIkGrQB+3mg4wfxx6JGUQlVU1KrEiV4ho9NZkbaR33UfeqrVwnMIP1cb0 4elqhrawMsgU1LNqcm7c73H5c6apPtLYVpwfE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type; b=Qa8ApHp7DNGd21K5S/q6yFoh//MzSYchNA7LZITvN/VH0RLLQLfgYH42AzVUIcEJjY 3N6HzseFGZXAN//KVaMH7ps8e9xhAWk2t5xg4IWKdWGKNEugDIs9NjbiPS4Vu8SHewBa uATkDpUHEydmcYR3bPOi7+gxDLf0I2IIdBo54= Received: by 10.91.42.15 with SMTP id u15mr5608598agj.203.1290844129089; Fri, 26 Nov 2010 23:48:49 -0800 (PST) Received: from [192.168.1.2] (adsl-95-133-127.jan.bellsouth.net [98.95.133.127]) by mx.google.com with ESMTPS id d10sm3039095and.19.2010.11.26.23.48.46 (version=SSLv3 cipher=RC4-MD5); Fri, 26 Nov 2010 23:48:48 -0800 (PST) Message-ID: <4CF0B7DB.7060609@gmail.com> Date: Sat, 27 Nov 2010 01:48:43 -0600 From: Dale User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.15) Gecko/20101109 Gentoo/2.0.10 SeaMonkey/2.0.10 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Somewhat OT. Building a rig. Want to get opinions before spending $$$ References: <4CF0269F.9030702@gmail.com> <201011261456.36800.matt@deploylinux.net> <201011270429.14914.volkerarmin@googlemail.com> <201011262214.05864.matt@deploylinux.net> In-Reply-To: Content-Type: multipart/alternative; boundary="------------010805080405060201040406" X-Archives-Salt: b3da2275-1c03-44d6-a62a-aa6a760f3de1 X-Archives-Hash: d3b09a83411b990282a96ff8c18893cd This is a multi-part message in MIME format. --------------010805080405060201040406 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Adam Carter wrote: > > > Even my rig - hotter, doesn't reach 300W when I artificially > torture the > > system. Normal 'max' load is in 200W range. An normal desktop? > Under 100. > > > > OK -- just to find out the truth I've attached a kill-a-watt to my > current > workstation which is ~4yrs old w/ slow cpu and ancient video card but > has been upgraded w/ 7 SATA Drives: > > > So the figures below are AC in, not DC out. Pretty sure the figure > everyone uses for comparison is DC out. > > Idle - ~285W > Light Use (emerge --sync) - ~310W > Kernel Compile w/ video app running and minor torture- ~340W > > This is definitely much higher than 100-200W stated above. > > Anyhow, given that the discussion was about a system lasting > ~8yrs, which is > twice the current age of my system, I don't think it's unfeasible > that future > upgrades (especially if video card related or if moving cpu from 2 > core to 8 > core) could get normal power util 20% higher to ~372W eventually. > > If you conservatively state that PSU wattage should be 1.66 * > normal util (so > that PSU is normally running at 60% of peak) then: > > 1.66 * 372 = 617 > > > I think you've double dipped there....see above comment. > > My 2c WRT power supplies - buy a quality brand as they are one of the > least reliable components in a PC. > > To add a little info about me and my puters. I don't update very often. I started out with 512Mb of ram and upgraded to 2Gbs. I started with a 30Gb hard drive and upgraded to a 80Gb and added a 750Gb when I got DSL and could watch videos. Basically, as far as power is concerned, I added a single hard drive. I doubt the memory changed power very much. Swapping a 80Gb drive for the 30Gb probably wasn't much change either. The new drive may have even use less power. The only other change was that I added 2 120mm fans on the side to help with the cooling. As you can probably tell, I build it and it stays the same basically. Maybe a little minor changes but nothing major. I figure I will add one more drive when I can afford it. Maybe a 1.5 to 2Tb or so. They are still dropping in price. Now to reply to some others. Dale :-) :-) --------------010805080405060201040406 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Adam Carter wrote:

> Even my rig - hotter, doesn't reach 300W when I artificially torture the
> system. Normal 'max' load is in 200W range. An normal desktop? Under 100.
>

OK -- just to find out the truth I've attached a kill-a-watt to my current
workstation which is ~4yrs old w/ slow cpu and ancient video card but
has been upgraded w/ 7 SATA Drives:

So the figures below are AC in, not DC out. Pretty sure the figure everyone uses for comparison is DC out.
 
Idle - ~285W
Light Use (emerge --sync) - ~310W
Kernel Compile w/ video app running and minor torture- ~340W

This is definitely much higher than 100-200W stated above.

Anyhow, given that the discussion was about a system lasting ~8yrs, which is
twice the current age of my system, I don't think it's unfeasible that future
upgrades (especially if video card related or if moving cpu from 2 core to 8
core) could get normal power util 20% higher to ~372W eventually.

If you conservatively state that PSU wattage should be 1.66 * normal util  (so
that PSU is normally running at 60% of peak) then:

1.66 * 372 = 617

I think you've double dipped there....see above comment.

My 2c WRT power supplies - buy a quality brand as they are one of the least reliable components in a PC.



To add a little info about me and my puters.  I don't update very often.  I started out with 512Mb of ram and upgraded to 2Gbs.  I started with a 30Gb hard drive and upgraded to a 80Gb and added a 750Gb when I got DSL and could watch videos.  Basically, as far as power is concerned, I added a single hard drive.  I doubt the memory changed power very much.  Swapping a 80Gb drive for the 30Gb probably wasn't much change either.  The new drive may have even use less power.  The only other change was that I added 2 120mm fans on the side to help with the cooling. 

As you can probably tell, I build it and it stays the same basically.  Maybe a little minor changes but nothing major.  I figure I will add one more drive when I can afford it.  Maybe a 1.5 to 2Tb or so.  They are still dropping in price. 

Now to reply to some others.

Dale

:-)  :-) 
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