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. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
