Hi!
Don't know, how below quote (currently) relevant for FDAPM with its
possibility for throtling, but I wish to quote (in very free translation
from Russian) part of description for program, which reduces FSB in case of
low CPU activity (http://testmem.narod.ru/cnqnf2.htm):
"
First edition (0.1.1) can control CPU frequency, depending from its
loadness. If CPU idle, its frequency slowly reduced to minimal level, and
when activity increased, frequency returns to original level. For first
version lowest level is 70 MHz ... Below 70 MHz is not very rational,
because this causes memory stability issues. For example, with sound cards
like Audigy turning on Bus disconnect option in BIOS gives less eddeciency.
For Athlon XP (Barton) at 1.65V and 2.2 GHz typical idle currency is 42W,
with Bus disconnect - 17W, with FSB reduction from 210 MHz to 70 MHz - 15W.
...
>Because frequency reduced SLOWLY, then NOISES in power supply and external
>power circuits not arise, also as keen THERMAL JUMPS in CPU, which can
>damage CPU chip. BTW, this is reason, why lowews level is so big - it may be
>1.5-2 times lesser.
...
Program looks at CPU load and, if it too low, it starts smooth frequency
reduction. Inverse process starts when CPU activity increased, and there
frequency increased faster, than decreased.
"
PS: This site contains very useful testing program TESTMEM (1, II and 4) and
[EMAIL PROTECTED], also as benchmarking and more. Unfortunately, all site is in
slightly
ugly Russian (except some pages, like /bme.htm and /l_tm4e.htm), so it not
very useful for read, unless you know Russian. Anyway, testing programs from
there are very fast, but very aggressive.
PPS: In my archive latest fdapm archive named fdapm524.zip (fdapm from
2005/02/05). :)
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