rounakr94 :
Dunlop0078 :
If you have bios version 1301 or newer you are okay if not you will need to update the bios first. A guide for what? How to install it?
https://www.asus.com/Motherboards/M5A78LM_LE/HelpDesk_Download/
I have 1601

And what should i look out before handind the seller the cash?
Where are you buying it from craigslist or something? Post a link and i will check it out. If your going to be getting it in person just make sure it says AMD FX on the top of the chip it will look like this below except it will say "6300" were it says "8350" on that chip. Also look at the back of the chip and make sure none of the pins are bent.
http://www.techspot.com/articles-info/586/images/Image_01S.jpg