My opinion is, after running computers for many years, Compaq's, Dells,  
etc.  It's far better to just let them run.  The switches on the 
monitors just have not held up well for me, and earlier years of HD's 
not restarting. Mac's I admit I don't know this is my first G-3  apple 
iMac.   I think if you can work on them, fine, shut them off, but if 
not, let them run, re-boot once in awhile  but mine have held up far 
better that way.  I don't put a monitor to sleep, another trouble spot, 
I keep it running with a screen saver.  I think if you can't afford to 
let something that consumes about what a 100 watt light bulb uses,  
that's too tight.
Lyle


Bruce Johnson wrote:
> On Jan 26, 2009, at 1:33 PM, Wilton Shaw wrote:
>
>   
>> Hello,
>>      I heard on the radio today that one of the ways to help conserve
>> energy is to turn off all computers at night. What exactly does this
>> do to a computers system, good or bad?
>> I have an eMac, using OS 10.5.6.
>>     
>
> Good: conserves electricity
>
> Bad: Macs, need to run Onyx occasionally to run the periodic  
> maintenance scripts when it's awake.
>
> Disputed: It has long been contended that repeatedly starting up and  
> shutting down put more stress on components, but that's never been  
> conclusively proven; also modern circuitry and components are better  
> able to handle things like this.(for example, drive platters are  
> lighter, as are the rest of the drive mechanics, so less mechanical  
> wear).
>
> Honestly, it's a good idea.
>
>   


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