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Mac Forum / General / Hardware / November 2006'Run in' or not 'run in'?
Hei I have just bought another QuickSilver 867mhz G4, which is going to have a new 'motor' with a GigaDesigns 7447A Dual G4 1,6-2,0ghz processor. I have more CPU upgraded Macs and have always with these set the CPU a step lower to 'run in' the CPU and then set it up to full speed after apprx. a month or so, - just like you run in a new car... My experiences are that this always gives the best results With fx. PowerLogix processors this is rather easy, since the speed is controlled by 'CPUDirectory' software, but with Giga's Processors it is done directly with small dipswitches on the buttom of the CPU in steps 1,6ghz, 1,8ghz and 2.0ghz. This is rather bothering, since you then have to unmount the CPU and change the speed to the max., when the 'run in' time is over. - The GigaDesigns processors are fully native and run without drivers... Any thoughts / experiences on that I might give it the full 2.0ghz speed at once without risking anything? cheers, Erik Richard  Signature~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ KMLDenmark by Erik Richard Sørensen, Member of ADC <kmldenmark_NOSP@M_stofanet.dk> *Music Recording, Editing & Publishing - Also Smaller Quantities *Software - For Theological Education - And For Physically Impaired *Nisus - The Future in Text & Mail Processing <http://www.nisus.com> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Hei > [quoted text clipped - 17 lines] > > cheers, Erik Richard just set it to the speed you intent to use.. Running at a lower speed first will not make anything better. There are reasons to do it for a car engine, but not a computer. > I have just bought another QuickSilver 867mhz G4, which is going to have > a new 'motor' with a GigaDesigns 7447A Dual G4 1,6-2,0ghz processor. I > have more CPU upgraded Macs and have always with these set the CPU a > step lower to 'run in' the CPU and then set it up to full speed after > apprx. a month or so, - just like you run in a new car... My experiences > are that this always gives the best results I suspect this does nothing except make you feel better. Search for "bathtub curve" for details on how, statistically speaking, parts can fail. About the only thing you should do is run the hardware early and often to see if you can get it to fail while still under early warranty. The trailing edge of the curve is not much you can do about, and "running in" electronics like this will likely never affect this. Hei >> I have just bought another QuickSilver 867mhz G4, which is going to >> have a new 'motor' with a GigaDesigns 7447A Dual G4 1,6-2,0ghz [quoted text clipped - 4 lines] > > I suspect this does nothing except make you feel better. Well, I've been upgrading computers for many years now, and have always done it this way. But with native CPUs you have to unmount and change and mount again. As written - with PowerLogix PowerForce40 (G3) and PowerForce45 (G4), you control all of this through software. Fx. have I always let the PowerLogix CPUs start at 700mhz and let them stay there for 1-2 weeks, then up to 900mhz for another 1-2 weeks, and then to max.. > Search for "bathtub curve" for details on how, statistically speaking, > parts can fail. I'll try this... > About the only thing you should do is run the hardware early and often > to see if you can get it to fail while still under early warranty. The > trailing edge of the curve is not much you can do about, and "running > in" electronics like this will likely never affect this. OK, I know cars are quite different, - they are still mostly mechanically built.:-) - but I've been working with electronics for more than 40 years now - mostly audio components, and I'm now building up a new system for audio use with two independent networks, but so that i also can call network 2 from network 1.... Through these years I've noticed many, many times that having an amplifier, tuner, MC or open-reel tapemachine turned on and used with very low power for a month or two, will make them work better in harder use... I also noticed this with at least two of my CPU upgraded Macs using PowerLogix CPUs that these are increased in performance, if I've made a 'run in' for a couple of weeks... But maybe the same result could be reached, if I just left the machines turned ON for a couple of days. - The main thing I think - is to have the hardware completely 'warmed up' so everything has 'settled', so everything is firmly stuck, and if there was any thin film-surface on new components will be 'burned off' by the heating... But anyway - thanks for the inputs... Cheers, Erik Richard Signature~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ KMLDenmark by Erik Richard Sørensen, Member of ADC <kmldenmark_NOSP@M_stofanet.dk> *Music Recording, Editing & Publishing - Also Smaller Quantities *Software - For Theological Education - And For Physically Impaired *Nisus - The Future in Text & Mail Processing <http://www.nisus.com> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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