Help me with Compatability and Bottlenecking

Sid556

Honorable
May 29, 2013
2
0
10,510
heyy experts plzz help me, i'm a light gamer.Currently i'm using a pc with dual core e5700 and g41 chipset and wanna upgrade to a hd 7770,
I'm kinda confused about compatability as well as bottlenecking....
Plzz give your views
Regarding compatability my PSU is 450 watt which i know is ok for 7770 but i don't understand the PCI slot stuff...
i don't even know which PCI slot actually i have, tell me if it is compatible or not