Compatibly

Well I have been watching several different videos on the web.

Most dont mention having to upgrade the bios but I wondered if this 

http://www.ebuyer.com/409184-amd-fx-8350-4ghz-socket-am3-16mb-cache-retail-boxed-processor-fd8350frhkbox

would be compatible with this

http://www.ebuyer.com/398369-asrock-990fx-extreme3-socket-am3-7-1-channel-audio-atx-motherboard-990fx-extreme3

straight out of the box so all I have to do is power up as I am unsure on how to upgrade the bios.

Thanks

Yes, they are both AM3+ socket and the bios should be uptodate on that mobo.......going with the 8350 over a i5 3570K are you......

http://www.asrock.com/mb/AMD/990FX%20Extreme3/?cat=CPU

The 8350 is supported as of BIOS P1.30

http://www.asrock.com/mb/AMD/990FX%20Extreme3/?cat=Download&os=BIOS

BIOS P1.30 was published to the web site on June 6th last year so it is a safe bet that if you order the motherboard you will get a BIOS that can run the 8350