Most all electrical components contain capacitors. Modern motherboards typically contain solid-state caps which can still leak or explode but are supposed to last longer. The older ones, leaking is common, especially in lower-end ones. Not too long ago I did some work for this woman that bought a computer from me and in exchange for the labor I did (backing up files and whatnot) she gave me her old computer. It's an older HP, based on a Intel Celeron. It's not high end but it still has plenty of life left in it as a basic computer to surf the web, listen to music, watch videos. I figure, I got it pretty much for free so if I drop less than $30 on new capacitors and re-sell it for double that or more, that's a profit and an invaluable learning lesson in one deal. So I got home with the computer and looked inside and here's the horror of what I saw:
http://dl.dropbox.com/u/464376/headshot/mobo_recap/DSC05852.JPGhttp://dl.dropbox.com/u/464376/headshot/mobo_recap/DSC05855.JPGhttp://dl.dropbox.com/u/464376/headshot/mobo_recap/DSC05856.JPGBasically, all those capacitors feed power to the CPU. Leaky caps in this spot could mean power issues and a lot of frustration. So I read around and whenever you attempt a recap, it's a good idea to replace all the caps above a certain value (I forget exactly, something like 470uF). Since they're relatively cheap, I bought enough to replace all the ones on the board and enough to have spares in a pinch. I purchased them from
Mouser.
I haven't done the recap yet but I will and I'm going to record it and run it as a time lapse and put it on YouTube. Should be pretty interesting, especially since I haven't replaced capacitors before (only taken them off as a test of my skills).
*EDIT*
First Progress:
http://dl.dropbox.com/u/464376/headshot/mobo_recap/DSC05867.JPGhttp://dl.dropbox.com/u/464376/headshot/mobo_recap/DSC05868.JPG