From owner-freebsd-questions Thu Apr 19 12:43: 6 2001 Delivered-To: freebsd-questions@freebsd.org Received: from guru.mired.org (okc-65-26-235-186.mmcable.com [65.26.235.186]) by hub.freebsd.org (Postfix) with SMTP id 68F2037B422 for ; Thu, 19 Apr 2001 12:43:04 -0700 (PDT) (envelope-from mwm@mired.org) Received: (qmail 61421 invoked by uid 100); 19 Apr 2001 19:43:03 -0000 From: Mike Meyer MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15071.16327.422052.713154@guru.mired.org> Date: Thu, 19 Apr 2001 14:43:03 -0500 To: "Jeremiah Gowdy" Cc: questions@freebsd.org Subject: OT: Cooling CPUs (Was: the AMD factor in FreeBSD) In-Reply-To: <2344084@toto.iv> X-Mailer: VM 6.90 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`;h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Jeremiah Gowdy types: > > G4 stil runs without heatsink - doesn't qualify as a real CPU to me. > > end :)) > Hell, seems like a 'realer' CPU to me ! Heatsinks are when we ran out of > ideas for making a nice core/pipeline design, so we had to increase speed by > ramping up the clock to insane speeds. Cooling has always been a serious problem for high-end CPUs. Cray was a better cooling system than CPU designer. When his cooling systems failed, the solder in the box melted. I'm pretty sure he was also the first person to build a liquid-cooled CPU - and he did it in commercial quantities. Watching the coolant drain from a 2 is a rather cool experience. http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message