Hopefully someone can confirm this for me...
I'm looking to do a case upgrade for my XPS 8900 what I've read is we have Micro ATX motherboard... can someone confirm this for me.
Thank you Dan-H for your reply and sorry for not getting back to you quicker!
here's my setup http://imgur.com/a/fXxdg (just moved into a new house, don't judge! xD) and I took the case Phanteks p400!
In size it is micro-ATX. There are plenty of proprietary elements to the design though - from the wiring to the back panel connector -- that will make a case replacement a major engineering challenge.
Nice. The P400 is a really nice case.
Also, I think it is less effort to re-case an 8900/8700/8500 than it is to modify the OEM Dell case in an attempt to improve airflow, and looking back I should have just bought a new case.