Messages in this thread | | | Date | Sat, 19 Jul 1997 15:34:16 +0200 (MET DST) | From | Geert Uytterhoeven <> | Subject | Re: OFF-TOPIC Intel CPU dies... |
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On Fri, 18 Jul 1997, Rogier Wolff wrote: > Someone who was quoted wrote: > > > You didn't do the experiment I suggested: > > > > Run a 200MHz-rated CPU at 75/100MHz, and a 75/100MHz-rated CPU at 200MHz. > > I think Intel chips are speced for 50-100% of their rated speed. > i.e. you're allowed to run a 200MHz CPU at 100MHz if you want too. > > On the other hand, they will NOT blow up at lower speeds. Clock > multiplying may become unreliable at lower speeds, but at a multiplier > of 1, that too should be OK.
But most CPUs are not `static designs'. This means that the internal registers and memory need a sufficiently high clock to refresh their contents, cfr. refresh cycles on DRAM.
If your CPU is a static design, you can run it from 0 -- max clock speed. This is mainly used in CPUs for embedded applications.
Greetings,
Geert
-- Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be Wavelets, Linux/m68k on Amiga http://www.cs.kuleuven.ac.be/~geert/ Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium
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