On 12/6/2013 18:00, John R Pierce wrote: > On 12/6/2013 4:39 PM, Warren Young wrote: >> On 12/6/2013 16:34, Michael Hennebry wrote: >>>> There is a place for a front fan, but no fan there. >> It's common for cheap PC cases to have places for fans that the final PC >> manufacturer chooses not to populate. > > its pretty common on high end cases too. the one I have now has room for > like 8 120mm fans, of which i'm using 3. The only reason I phrased it that way is that a lot of high-end machines use bespoke cases, where every fan position is populated because it was designed together as a system. Anything built from a collection of off-the-shelf parts, as DIYers and some of the smaller high-end PC makers do, can have this same sort of design mismatch.