CN6555 balance 557s computer problems

try tiger direct.com they have about anything you need, take out your CPU and see what socket the processor uses, then just buy a board that uses the same processor socket, just ask when you call to order if its laptop compatible laptops use special slots for RAM, and some specialized other parts, but you should not have too much trouble getting one. they have tech support to help.

Balance 557s has an ECS motherboard, specifications at:

http://www.ecsusa.com/ECSWebSite/Products/ProductsDetail.aspx?detailid=479&CategoryID=3&DetailName=Specification&MenuID=1&LanID=0

just go to the google.com and try to type the search box the brand of your computer so that you find the product....