Is my psu is enough for shapphire hd 7770 1gb

Solution
I'd recommend you 450W SeaSonic, Zalman, Antec, Corsair PSU's with 80plus efficiency. They are reliable and even though your current PSU may be enough for your system, I'd still buy a quality new one. I have the same card and I'm using 450w corsair with 80+ efficiency.
I'd recommend you 450W SeaSonic, Zalman, Antec, Corsair PSU's with 80plus efficiency. They are reliable and even though your current PSU may be enough for your system, I'd still buy a quality new one. I have the same card and I'm using 450w corsair with 80+ efficiency.
 
Solution