Graphics Card Upgrade Help For Acer Aspire M3802

Can i upgrade my Acer Aspire M3802 With a AMD Radeon HD 7770 1GB GDDR5?


http://www.amazon.co.uk/Sapphire-11201-17-20G-DisplayPo... - Thats the graphics card i was looking at, so could i make the upgrade? I have 6gm Ram and a Intel core 2 Quad processor.

YOU ARE GOOD TO GO PERFECT GRAPHICS CARD FOR YOUR SYSTEM AND DONT WORRY ABOUT DDR5 ITS JUST FINE.NICE CARD CAN EASILY PLAY LATEST GAMES AT HIGHER SETTINGS.BEST VALUE CARD.
 


But i was wondering would it fit and does my pc have the right amount of watts to support it?
 


i open the case? okay, omce i have that done what do i look for to know my voltage and watts?
 


The power supply will have the total wattage on it, and also list the brand. Many cheaper ones way over-rate their output.
 


Thanks for the help, i ordered a Asus AMD RADEON 6770 and it should run on a 300 watt power supply, and yes i checked mines 300. And if it doesn't i'll get a higher watt supply, but anyway thank you so much for helping me!