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10.5: Enable nap mode in 10.5 on G4 MDD systems
Authored by: kaylan on Dec 08, '07 06:18:48AM

Thanks for the reply and apologies for the delay in responding. I will try new version of the script. I do indeed have a 2 x 1.4G MDD with a firewire 800 port in the back. If you look into xlr8yourmac.com, you will find that with tiger and even before, due to hardware issues, if you turned on nap mode in these machines, after a long while (typically days), they do crap out. Some people have reports suggesting that theirs are fine, however, they seem to be the minority, or they can not attribute the crashes to the nap mode. G5 machines did not have this issue. What I did find out, is that if I switch off one of the two CPUs that I have BEFORE enabling the nap mode, everything was fine. You had reverse the order by turn second cpu on when necessary AFTER disabling the nap mode. So I wrote scripts to do this, and automatically managed nap mode and cpu count based on load. Of course Leopard broke that. So now, using your original script, nap mode on and and forced on two cpu's, reliability goes (presumably) down the tube as that was exactly the condition with Tiger. This is also the reason why apple disabled the nap mode thing on these machines as I understand it, it is a hardware related issue, as on the single CPU machines, nap mode is on by default 24/7. I really do appreciate your providing an added script. Will test and report if positive results. Thanks.



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