I want to upgrade my dell Precision 330 with a new motherboard, processor and memory. My problem is when looking aroung at other motherboards the layout of them is totally diffent to my current board. My system has 5 PCI slots then the AGP then Processor and then the Ram directly above that. (Not off to the side of the processor). I measured my current board, its 355 mm long and 215mm wide. My concern is if i by a new board will it fit my exsiting case.