Date: Thu, 12 Jul 2001 10:55:05 -0700 From: David Greenman <dg@root.com> To: Bsdguru@aol.com Cc: crandall@matchlogic.com, isp@freebsd.org Subject: Re: Intel ISP1100 or similar 1U experience with 4.3 stable Message-ID: <20010712105505.A49840@nexus.root.com> In-Reply-To: <65.170e42f2.287f3ac4@aol.com>; from Bsdguru@aol.com on Thu, Jul 12, 2001 at 01:39:16PM -0400 References: <65.170e42f2.287f3ac4@aol.com>
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>In a message dated 07/11/2001 3:14:19 PM Eastern Daylight Time, >crandall@matchlogic.com writes: > >> Don't know how this ended up on -hackers, but... >> >> The 1U server market is indeed hot (pun intended). >> >> Take a look at the new 1400 series from iXsystems (www.ixsystems.net -- >> formerly BSDi, formerly Telenet) and the Dell 1550. I've tested both >systems >> and was impressed by both. If you're buying more than a few machines, Dell >> has some very aggressive pricing. >> >> Charles > >the fact that you were impressed doesnt mean that they are adaquately cooled >or anything else. Are you implying that just because something is popular it >is well-engineered? > >There is less than 1" of space above the cpu in a 1U unit, which doesnt leave >enough space for an approproate heat-sink and fan for high Mhz cpu. Yes they >will run, and may never fail, but they are not as reliable as 2U units which >allow for a more appropriate heat sink and larger fans. Uhh, that just isn't true. It's true that _most_ low profile CPU coolers will not cool adequately, but certainly not all of them. There are some that are large but not tall that have a powerful fan and are made partly or completely of copper that do a fine job of cooling. CPUs in our 1U systems, for example, run worst case about 20C above ambient temperature, usually less than 10C above - i.e. about 35C, which is well below the 70C thermal requirement of the 1GHz FCPGA PIII and fairly close to the performace of the large aluminum heat sink that Intel provides with the boxed processor. -DG David Greenman Co-founder, The FreeBSD Project - http://www.freebsd.org President, TeraSolutions, Inc. - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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