If i build a PC, is there a chance it wont work?

Well since you are ordering the parts and assembling them yourself there is always the risk of problems and errors, both by you and the computer parts themselves. I personally think that if you have even considered building a PC and you are willing to put a little effort into learning the small amount of information it takes to assemble a PC, then go for it. It's more cost effective, allows for more customization, and just gives you a good feeling when your computer posts for the first time after a couple hours of putting parts together.
 


is ther a big chance or a small chance