i need a help.
i have ga78lmtusb3 motherboard + fx 6300 with seasonic 600watt psu.
now i am thinking on buying msi twin frozr 760.
But i am little wooried does my motherboard will support it or not.
Your motherboard has a PCI Express 2.0 x16 slot, allowing mostly any graphics card to be installed.
Check to see if your PSU has a 6-pin PCI-E connector to power the graphics card. (My search revealed that it should.)
The minimum PSU requirement is 600 watts, and this should be fine, unless you have any other high wattage hardware.