I have an hp media center m260n pc. It has a p4 2.6ghz cpu and 1gig ram and an ati radeon x800 xt pe gpu. All this is running off the oem 250 watt psu that came with the system. I would seriously like to upgrade the psu however the oem case is too small to fit a new psu in. Hp psu's are tiny. I also looked and found that the form factor is something called uATX. I've never heard of it and was only able to find that it's incredibly similar to mATX. The current psu is an ATX 250 watt supply. My question is, could I switch cases into a mid tower case that supports atx and mATX and also would I be able to upgrade to a ATX 450 watt psu? Thanks a lot to all that will help.
might also be possible to change the small psu to larger psu as there might be an adapter plate mounted onto the small psu filling in the space on the back of the case normally taken up by a regular size psu. have come across that a couple of time.
just to clarify that little u thingy in front of ATX stands for micro its just a prefix for units just like milli-meters nano-meters and so on its just written with the i think that its the greek letter gnew(spelling)