Here is my mobo and CPU that i use on my PC:
http://www.newegg.com/Product/Produc...82E16813138345
and CPU is:
http://www.newegg.com/Product/Produc...82E16819103886
Took 10 seconds to unlock 4th core in Bios. Ive used this combo on 3 other builds and never had issues with unlocking 4th core and having a nice setup for under 150 bucks. I'm not one to go for style/Huge gaming rigs i prefer more cost effective builds that suit what i need. You dont need to spend more then 500 bucks if all your looking for is a PC to run p99. I can do that on a dual core that i picked up off craigslist for 100 bucks.( i actually use my 100 dollars craiglist PC as my media center which replaced my ps3 and is 100x more efficient.)