Dell XPS720 does NOT work well with Windows7 (32/64 bit) - You get controller errors, video card errors and a heck of a lot more. Even after installing (in any mode as administrator) the errors still prevail. I'll always believed that the Dell - Intel failed agreement is one of the main factors of this. If it were anything else you'd get a free upgrade / change of machine however Dell tried to ease it all by simply ignoring everyone. Their real problem was they said the XPS720 was easily upgradeable, which it is NOT! It has a beautiful (huge!) tower which has the most stupid motherboard installed in it and once that's finished with nothing else will fit. Dell never had the nerve to get itself some serious respect and offer the XPS730 to all the 700, 710 and 720 purchasers to prove they were an 'okay' provider of IT equipment - years on. I, personally manage to sometimes get windows 7 to start 1st time otherwise it's like several attempts!
Someone like to tell me I'm wrong in all this and if so the way to avoid errors - I bet not, including Dell themselves! Shame on them for selling systems that they simply lied about in every respect, even in using XP!
I have an xps 720 core 2 duo running win 7 64bit with no problem, or errors now I did update the bios to the latest revision. Now my OS is a win 7 upgrade from Vista I don't know if that makes a difference.
I am currently planning to upgrade the processor to a Q6850 and ad a factory dell water cooler in it
P.S. Don't expect a lot of help from Dell tech support, I was basically told if I didn't buy it from them (bought it from a neighbor who was going to scrap it) they would not assist me.
YOU ARE INDEED COMPLETELY WRONG ABOUT THIS! RIGHT NOW I'M WRITING THIS ON A DELL XPS-720 WITH THE OCK 520 MOTHER BOARD AND THE NFORCE 680I SLI SPP CHIPSET.
IF YOU HAD BEEN TALKING ABOUT WINDOWS 10, THEN Y0U WOULD HAVE A CASE. BUT AS IT STANDS... THERE IS NO PROBLEM WHATSOEVER INSTALLING AND RUNNING WINDOWS 7 X64 ON THIS. YOU SEEM A BIT-- emoticon.Confused.title