Dell is a contract systems builder. They do not own the chip or circuit board manufacturing facilities. They contract for parts, as was stated previously........Dells are okay systems for people who know nothing about or don't care about building for performance. I have a close friend who is a chip designer in San Jose.....he uses a Dell server work station because it does what he asks it to do and it doesn't matter didly squat to him whether they are upgradable or not! They are "throw away" PC's, as he says.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.