----- Original Message -----
From: "Raquel" <[EMAIL PROTECTED]>
To: <debian-user@lists.debian.org>
Sent: Tuesday, August 28, 2007 1:50 PM
Subject: Re: Shut down or leave on?
On Tue, 28 Aug 2007 09:45:51 -0700
Jeff <[EMAIL PROTECTED]> wrote:
Raquel wrote:
> On Tue, 28 Aug 2007 11:28:35 -0400
> "Richard Carter" <[EMAIL PROTECTED]> wrote:
>
>> Hi Folks,
>>
>> Is it better to leave a system running all the time or is it
>> better to shut it down over night, on weekends, holidays etc?
>>
<snip>
>>
>> I'd appreciate your advice.
>>
>> Robin Carter
>>
>
> I've always gone for leaving my machines on. I feel there is
> less wear and tear on components by leaving the machine on.
>
Specifically, as I understand it, thermal shock to minuscule
electronic components during power-on. In the past, I've lost a
number of motherboards and processors due (presumably) to this
effect. Since keeping my machines on 24/7 (for several years
now), I have not had any such problems.
Jeff
I also understand that when the hard disks get power that the
platters torque just a tad, if not causing heads to come into
contact with the platter, at least causing wear on bearings.
The stress created during the cool down and heat up cycle, between powering
off and powering on, can cause microfractures in the solid state components.
Further, on the lower quality powersupplies, the power on sequence can cause
current surges that can also weaken electronic components, although the
filtering in the present day switching powersupplies is supposed to
eliminate this. The amount electricity usage from present day devices is
minimal compared to replacement costs for those devices. I say, leave it
on.
-mike
--
Raquel
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