site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com If that doesn't work I'll have to sell it and buy a pc that can drive the monitor. ( I believe on pc's you can set it in the bios. That's what a pc friend told me ) = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... On Jun 14, 2006, at 12:48 PM, Dirk Schelfhout <dirkschelfhout@mac.com> wrote: I'll put some more effort in trying to install linux on it. Speaking as one of the "mole people" (thanks, Ethan 8) alluded to here, I can tell you that this won't necessarily help you very much. What range of frequencies do you believe affects you? The currently shipping Core Duo systems have a useful frequency range of about 1.5-2.16GHz; there is little or nothing to be saved in terms of power by running them below 1.5GHz so nobody supports this. It is not currently possible to jam Mac OS X on Intel Macintoshes into a 'lower' freqency range; some systems run at a fixed maximum frequency while others are frequency-agile. In either case, the system attempts to deliver maximum performance, and reducing the operating frequency is not consistent with that. Very few PC systems support this, and on most of those Windows will ignore the BIOS settings. You may find an alternative system that doesn't give you a headache, but it won't be because you've managed to make it run slower. It is perhaps worth noting, in passing, that the CPU frequency is among the least likely to be directly or indirectly radiated by your Mac. To begin with, it has one of the shortest wavelengths, meaning that it is attenuated by a great many things including the chassis and your skull. Then, there is the fact that it is entirely generated and contained within the CPU, meaning that it is comprehensively shielded by the die substrate, heatsink and PCB power planes beneath the socket. The power supply to the CPU is extremely heavily decoupled, meaning that clock radiation from power lines is suppressed as well. There are a number of other timing domains with much more viable radiation capabilities (various I/O busses, LCD panel scan, power supplies, LCD inverter etc.) although bear in mind that these systems are extensively shielded with an eye to minimising external radiation, and none of these domains are affected by changing the speed of the CPU. Equivalent timing domains are likely to be similar or identical on any modern Intel- or AMD-based system. This email sent to site_archiver@lists.apple.com