Which motherboard?

[kooskian]

My son has a dell dimension 4550, and it has a bad motherboard. Do I need to buy the same exact one, or is there a compatible one?

 

[dafin0]

a lot of Dells have there motherboards on the other side of the case, because of this you need a motherboard that was made for dells.

not sure if your model has this 'problem'