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On Sun, May 29, 2011 at 12:45 PM, Gordon Henderson <gordon+dcglug@xxxxxxxxxx> wrote: > On Sun, 29 May 2011, Guy Backhouse wrote: > >> On Sun, 2011-05-29 at 11:06 +0100, Gordon Henderson wrote: >> >>> On Sun, 29 May 2011, David Bell wrote: >>> >>>> On Sunday 29 May 2011 10:33:05 Gordon Henderson wrote: >>>>> >>>>> On Sun, 29 May 2011, Henry Bremridge wrote: >>>>>> >>>>>> Current fan on wife's pc is dying, most of the small PC shops seem >>>>>> closed >>>>>> today (hardly surprising). Does anyone know of a shop open, today, in >>>>>> the >>>>>> South Devon Area that sells 7cm CPU fans >>>>>> >>>>>> CPU is a Athlon 2800 with an aluminium heat sink to which the fan is >>>>>> screwed >>>>> >>>>> I have an 8cm one here if you want to pop over.. It might fit on just >>>>> one >>>>> corner which might get you going until you can source a proper one... I >>>>> might have others - I'll have a look. >>>> >>>> Have you tried cleaning out any dust and fluff, then lifting the foil >>>> cover to >>>> the bearings and giving them a drop of thin oil? >>> >>> If you're lucky enough to get a fan with real steel bearings!!! >>> >>> These days they are mostly plastic and putting any sort of oil on them is >>> a sure fire way of killing them instantly. > >> You may find silicon oil safe to use on those plastic/nylon type bearings, >> the >> problem is, I believe, the more traditional mineral oils react with and >> swell up plastics? > > You need to make sure the silicone isn't carried in a solvent first - some > of the spray ones are... > > However, I think it's really best to just throw them away and buy new - > preferably spending a few more pennies on one with proper bearings. > > The plastic ones I've taken apart in the past have been a metal pin in a > plastic bearing - they fail due to wear, or dust getting in and making them > wear more. Then they get that classing buzzing/screeching noise as the > pin/fan starts to rotate off centre - which only serves to increase wear, > etc. > > Sadly PCs stopped coming with dust filters when production numbers went up > and costs were driven down - mid 80's I suspect... Running PCs in a home > environment really is bad for them - worse if there are smokers... > > One reason I like fanless... > > If you've not see it, check these: > > http://www.theregister.co.uk/2009/11/13/ventblockers/ > http://www.theregister.co.uk/2010/11/18/ventblockers_2/ > http://www.theregister.co.uk/2010/11/26/ventblockers_2/ I feel sick! > > The place I hate going to most is a friend in Bristol who smokes heavilly > and runs several PCs in his home/office... His PCs/servers really are > disgusting inside )-: > > I have one of those portable Dysons - very handy for cleaning the inside of > PCs! I had heard (although I have done it myself) that cleaning a PC with a vacuum was bad re: static? But if you do it, perhaps not...? roly :-) -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq