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Open Source and information security mailing list archives
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Message-ID: <20070613195329.GC8273@ucw.cz> Date: Wed, 13 Jun 2007 19:53:30 +0000 From: Pavel Machek <pavel@....cz> To: David Schwartz <davids@...master.com> Cc: "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org> Subject: Re: PC speaker Hi! > > > >I'd say impossible. Just disconnect it from the motherboard. > > > > > > The days when hardware *relied* on software (hence, where software > > > could damage hardware) are over. > > > Nice theory but you can destroy or render useless a fair amount of PC > > hardware via software, usually because the thing is *DESIGNED* that way > > for convenience. (Flash update interfaces without jumpers, locking > > interfaces for drives etc) > > Other great examples are hardware that allows you to control voltages, fan > speeds, and operating frequencies. Sometimes you can overvoltage it directly > and blow it immediately. Other times, you can increase the voltage and > operating frequency and decrease the fan speed to the point where it stops > spinning. This is possible on many modern graphics cards and CPUs. Not true for cpus; try it before spreading FUD. Thermal protection will kill the machine when cpu goes over 95C or so. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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