Very true!! On the geode design, we're actually running the part at 233 MHz, and the core voltage is 1.8V. Things still get pretty hot inside the box, but it's primarily from sources other than the geode (LCD backlight, mostly). We've been able to keep everything within spec with just venting and heat sinking, no active cooling. -Mark At 07:01 PM 2/14/02 +0200, you wrote: >This is all very interesting but what about power consumption and heat ? >Don't these things require serious thermal design to make them work inside >a closed box (especially the Geode) ? Last time I checked a chip running >at 300MHz requires serious cooling arrangements to keep it under 70C at >all times. Do they use a very low core voltage internally to avoid >producting heat ? > >Peter > >Mark Samuels wrote: > >The application is battery powered, so I only have the MachZ running at >33MHz, and running some DOS applications. As far as support circuitry, >there really isn't that much! The great thing about the part is the fact >that everything is integrated. VGA is literally pins out of the part. >Same with PCI, ISA, IDE, RAM, USB, serial/parallel. Pretty much only >passive components needed. Since then, I did another design with another >SOC, National Semiconductor's Geode processor, which is also a fully >integrated part, except it's a pentium core, and runs up to 300MHz! > >-Mark > >-- >http://www.piclist.com#nomail Going offline? Don't AutoReply us! >email listserv@mitvma.mit.edu with SET PICList DIGEST in the body ------------------------------------------- Mark Samuels ARMA Design Tel:(858) 373-1320 Fax:(858) 373-1325 Email: mark@armanet.com Web: www.armanet.com The information contained in this electronic message is private and may contain privileged, confidential or inside information. Any distribution, copying or forwarding or use of this communication by anyone other than the intended recipient(s) is strictly prohibited and may be unlawful. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body