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On Mon, Jul 23, 2007 at 11:51:43PM +0200, Peter Ganzhorn wrote: > in order to get a temporary fileserver running at home, I "reactivated" an > old Pentium III on a i815-based board. I have one running as a personal video recorder (MythTV), but it gets a bit rusty so it's due to be replaced by a modern core2 duo machine. > Combined with a gigabit NIC this box works perfectly as a file server, but > I wondered if there is a way to reduce the power consumption of this box > when running. > Even for earlier Intel chipsets (e.g. the 440BX) there are CPUfreq drivers > available in the kernel, but I wasn't able to find any driver suitable for > the i815. > Is there a CPUfreq driver that can save me some power on this box? I'm afraid not. For frequency and voltage scaling to work, both the CPU and the chipset have to support it. IIRC only some mobile PIII support scaling, and only when the chipset supports it as well. > AFAIK it does not support C-states at all, so this is the only way I can > think of to save some power. I guess it will support C states, my equally old Athlon 1.6 GHz also supports it. Even if it doesn't support C states you can still save power by letting it idle as much as possible. Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
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