Solved: Motherboard problem

First of all, dells are proprietary. The older ones use a proprietary power supply as well. You cannot just install a dell mb into a standard atx case and expect it to work. Very often the pci/agp/pci-e slots will not line up, wrong type pw supply, etc.

Are you attempting to use a dell case or a standard case? Are you using a dell pw supply or a standard pw supply?

 

Those are pretty much standard atx or micro cases. FWIW I would not waste time with something like this. If you are doing this for experience, then fine; it can be a good learning experience. If you are attempting to build a system for use, IMO it is a waste of time.

If you really really want to see if it will work, I would attempt an out of the case pw up of the board. This will tell you if it is a mounting problem or a board problem. In any case, you need to make sure of what pw supply that board needs; dell or standard atx.