Brian J. Beesley wrote: > > I have a little problem with a PIII 750 MHZ notebook, that > is running > > prime on a 11 mio digit. It's really too slow, about a 0.4x per > > iteration, should be a 0.2x... Where is the problem? > > (1) as other people have suggested, powersaving mode. If this is the > correct assumption, if you keep moving the mouse pointer (once a > minute should be enough), the system will run at a "sensible" speed. powersaving is disabled, mouse moving changes nothing. > (2) something else stealing CPU cycles ... ? prime95 is working on nearly 100% CPU time. > (3) are these not the processors with "SpeedStep" i.e. they run at > about half speed when on battery power? intel speed step is disabled. > (4) many notebooks have some sort of system for manually selecting > the speed from the keyboard. e.g. on a Tosh notebook, try <Fn>+<F2>. > This cycles through 3 modes, "slow", "fast" & "user", you can set up > the powersaving CPU speed & screen brightness together with the > timeout values in user mode using BIOS Setup or a special utility > supplied with the system. I can't find any of these settings, but I asked the manufactor of the notebook. In the end, the problem remains, the PIII750 is too slow, a 0.4x where a 0.2x should be. Interesting: CPU Benchmark with Dr. Hardware 2000 (Sofstone and Hardstone) is allright, in softstone it is faster, in hardstone a little bit slower than a Athlon 750. Maybe there is a problem with Microsofts ME (any of these drivers), which was installed on the notebook? On nearly every startup there is a ILLEGAL SUMOUT, but only on startups. There is no problem with it even after a couple of days running. Has anyone heard of problems with MS Me? Next week or so I will try Win2k or Linux. best reagrds from Germany Bjoern _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
