Re: OT - power off probs
On Tuesday 27 December 2005 21:49, Piers Kittel wrote:
>Sorry - I didn't count the PSU fan :/ The PSU does have its own
> built in fan. The spare 350watter has 2 built in fans.
>
>Also, it's proprietary so I doubt it'd be easy to find a replacement
> PSU.
>
>But it strikes me strange, the board starts powering off as soon as I
>swopped over the 2 systems - why didn't it start happening with the
> old system? Because the old system didn't draw as much power?
>
>Cheers - Piers
>
Oops, sorry Piers, I just replied to the duplicate in my inbox.
I asked Piers to describe the psu cable<->motherboard connectors so I
can see if they're like my big std stuff.
>Gene Heskett wrote:
>> On Tuesday 27 December 2005 20:12, Piers Kittel wrote:
>>>Even tho it's only about a year old?
>>
>> A year old psu can have 4 oz of dust bunnies in it, completely
>> blocking any air flow. This user said there was only one fan, the
>> one on the cpu.
>>
>> Now, I've never seen although there may well be, an example of a
>> fanless psu, but at 240 watts rated, & say 95% efficiency (thats
>> being very very charitable BTW, most are hard put to make 90%) then
>> thats still 12 watts of heat to get rid of by whatever means. With
>> no fan that assumes good radiant efficiency, and good thermal
>> condutivity to the outside world else something is going to get too
>> hot to work. And once an overheat has shut one of these things
>> down (if its not a catastrophic shutdown where the magic smoke
>> comes out) then whatever caused the shutdown is going to become
>> ever more sensitive to over temps, turning itself into a nuisance
>> rather quickly.
>>
>> With decent psu's being commodity items, carefull shopping will buy
>> you a case of 24 300 watters from the pacific rim people at less
>> than a $20 bill each including shipping. I usually go for the even
>> bigger stuffs, 450-600 watts rated because they'll have 2 fairly
>> quiet, ball bearing rated fans in them, often thermostaticly
>> controlled & running easy, and will last for many years. But they
>> ALL will benefit from an annual blow job administered by a 100+ psi
>> air hose. That one point will extend their working life by 3 to 10
>> times depending on how much dust they manage to trap.
>>
>> Who am I to sound like an expert when I don't even have a
>> briefcase? Just a semi-retired old fart who's been chasing
>> electrons for a living since about 1948. The last 21 years as the
>> CE at a TV station here in WV. Semi-retired because I'm still
>> doing it part time.
--
Cheers, Gene
People having trouble with vz bouncing email to me should add the word
'online' between the 'verizon', and the dot which bypasses vz's
stupid bounce rules. I do use spamassassin too. :-)
Yahoo.com and AOL/TW attorneys please note, additions to the above
message by Gene Heskett are:
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.
Reply to: