Somewhere on teh intarwebs smithdoerr wrote:
> "Gorby" <(E-Mail Removed)> wrote in message
> news:EpcMo.4552$(E-Mail Removed)...
>> On 10/12/2010 7:13 AM, John McGaw wrote:
>>> On 12/9/2010 3:23 PM, Steve Giannoni wrote:
>>>> How frequenty is this needed in a typical system ?
>>>
>>> It has less to do with the system than with where the system is
>>> located. If the computer is sitting on a desk in a super-clean
>>> location the answer is "virtually never" but if the computer is
>>> sitting on the floor in a dusty room with a lot of traffic in a
>>> home with hairy roaming pets then then answer may be "every month".
>>> The computer itself will have some bearing on the answer too, of
>>> course, since a computer with high-air volumes will hoover up more
>>> debris while one with effective air filtration will get less inside
>>> and one which is overclocked will need more attention in almost
>>> every situation. The safe answer is it needs to be done when it needs to
>>> be done. If
>>> you monitor the CPU and other temperatures in your system using
>>> SpeedFan or some other compatible software you will know to do a
>>> cleaning when the temperatures start to climb.
>> Yes! It's also amazing how much less dust and rubbish you get when
>> you simply raise your PC off the floor by, even, a phone book's
>> width. You will still get dust, but a lot less, when you place the
>> PC on a phone book.
>> Hah! I live in Australia. My PC is on my desk at home. My cat often
>> jumps up on my desk. It's summer! The cat is moulting. I'm cleaning
>> cat hair out of the PC!!! Grrr!
>
> A PC case with air filters is the way to go. I still get some dust
> inside the box and have to clean it every so often but mostly I just
> have to pop out the filters and dust them off about once a month.
That's fine as long as you're diligent about cleaning the filters, or have
[motherboard] monitoring software installed that will tell you when temps
get a bit high.
I know of more than one instance where, when using a filtered case,
components such as the PSU, HDD and even the motherboard have failed due to
prolonged exposure to heat. At least with unfiltered inlets it's usually the
CPU cooler that acts as a dust-magnet, picking up most of the particulate
matter and clogging. This usually results in the CPU fan going full-noise
and the CPU thermally throttling, alerting the user to the problem rather
than the machine running on as a mini-oven [often IME with an elevated CPU
fan speed but not running at 'turbine speeds' which would worry the user].
However other components [usually] don't thermally throttle or give any
warning if they're running in a hostile environment. Therefore, in a case
with compromised 'filtered' inlets there may be enough headroom in the CPU
specs for it to keep running at full speed but it's dumping all of it's heat
into the case. With little flow-through all of the other components then
have to operate at elevated temperatures and a lot of them are less able to
cope wth it.
Therefore my preference for a system that isn't built by or for a geek is
for unfiltered inlets. That way, if it's in a 'dusty' environment usually
the first warning they get is thermal throttling of the CPU ('poor
performance') and/or a very loud CPU fan and they then get it 'looked at'.
In these cases the norm is to clean out the [choked-up] CPU cooler, blow out
the rest of the case and no long-term harm is done.
I recently cleaned out a neighbour's (PrescHOT 3.2GHz P4) PC that had been
making a lot of noise, crashing and Windows had been throwing up errors.
He'd been doing home improvements in the adjacent room (well, sort of the
same room as the house is semi-open plan) and had been cutting dry-wall. The
CPU heatsink looked like it had been encased in concrete but a wash in hot
soapy water, a clean of all the fans and blow-out of the case and all was
well*
YMMV.
(* Actually I'm not so convinced that Intel's implimentation of thermal
throttling in that era of CPUs was very good. After I'd cleaned the system
and booted it Windows (XP Pro) gave me 16 'Windows has recovered from a
serious error' messages. The HDD tests out as fine, no bad sectors, and
going by the self-preserving SMART data, hasn't operated beyond specified
temperatures. The RAM is also all good. Therefore IMO the CPU must have been
sending corrupted data to the HDD. I thought that wasn't supposed to happen.
I'm pleased that I went to AMD for the duration of the P4 era.)
--
Shaun.
"He who fights with monsters might take care lest he thereby become a
monster. And if you gaze for long into an abyss, the abyss gazes also
into you." Friedrich Wilhelm Nietzsche
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