p6t deluxe v2

So I got this Xeon X5670 off of ebay for like 20 bucks and it was supposed to replace my i7 920 trash. When I switched CPUs to my surprise the PC turned on but there was no input out of my keyboard, mouse, or monitor in response to the PC. I have recently discovered that I may need a BIOS...

Im buying my first pc build for a gaming pc and im a bit out of my league here. Im not sure if all the parts are good enough or even compatible with each other (excuse my newbness). Anyone have any suggestions for better parts? Im lookin to spend 1000-1200 on it all. Thanks in advance. Here's...