Date: Fri, 14 Dec 2007 14:16:31 -0800 From: "Kevin Oberman" <oberman@es.net> To: current@freebsd.org Subject: Dust out your heat syncs! Message-ID: <20071214221631.0AE8645014@ptavv.es.net>
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--==_Exmh_1197670590_6001P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline This is a bit off topic, but I have commented on the issue of dusty heat syncs in the past. With the recent discussion of the high temps generated by the last V7-beta on some systems (not mine), I thought that I would remind folks. I just dusted out my 2.5 year old laptop (2 GHz Pentium-M) and the difference was impressive. (And so was the cloud of dust I blew out!) Quiescent temperature dropped from 60C to 53C and the peak temperature during a kernel build dropped from a very toasty 90C to a comfortable 72C. 18C (32F) is a huge improvement! The dust either a laptop or a tower can collect is impressive, even in a fairly clean environment. I suspect an annual cleaning of heat syncs could significantly increase both the reliability and lifetime of systems. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1197670590_6001P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFHYwC+kn3rs5h7N1ERArTCAKCgb7k+Sf8eT7AkngRt8IhngELp4wCeJ+yA 2eh8XH/CrMqFPzwz5kqRw1w= =jsQ6 -----END PGP SIGNATURE----- --==_Exmh_1197670590_6001P--
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