On Tue, 4 Mar 2003 18:38:25 +1100 Mick Boda <[EMAIL PROTECTED]> wrote:
> Hi all, > > I wanted to get back into overclocking, but it crashes linux redhat. Patient: Doctor, doctor, it hurts when I bang my head against the wall. Doctor : Well stop banging your head against the wall and the pain will stop. > Is there anyway to hack the kernel so that it thinks it's running on a faster > processor? What you are seeing has NOTHING to do the what processor speed Linux may or may not think its running. If your machine is stable at the rated clock speed, and crashes when above the rated clock speed then you are running into the limits of what that piece of hardware is capable of. The main thing that happens when you increase the clock speed is that the quality of the digital signals within the components (CPU, bus controllers, PCI bridges, RAM chips etc etc) degrades. Clean transitions between logic 0 and logic 1 (and vice versa) become less clearly defined, the slopes of the transitions increase as a proportion of the clock speed etc. In addition, because heat is generated mostly during the switching transition and the swicthing time per clock cycle has increased, you get increased heating at higher clock rates. In addition, as the termperature goes up, so does the resistance and hence more heating and worse signals. The ONLY way that you MIGHT be able to overclock is if you can find the component which is causing the crashes and cool it down. Cooling will decrase the resistance, decrease the power consumption which and by doing that, help clean up the signals. Erik -- +-----------------------------------------------------------+ Erik de Castro Lopo [EMAIL PROTECTED] (Yes it's valid) +-----------------------------------------------------------+ Microsoft is finally bringing all of its Windows operating system families under one roof. It will combine all of the features of CE, stability and support of ME and the speed of NT. It will be called Windows CEMENT... -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
