Hi, i have a z77 V deluxe mobo with an i5 3570K@ 4.2Ghz 2 sticks of 4GB 1600Mhz RAM a sapphore Oc 7950 one DVD drive 4 x250mm case fans 1 x140mm exhaust an ocz agility 3 SSD and a caviar black sata2 HDD. I am already operating fine, i think so. My question is, can i add a 1TB caviar black sata 3 HDD with just a coolermaster silent pro gold 600W power supply?..
P.S. By thr way my cpu cooler i kinda cheap its the TX3 EVO room temp 20-30 celcius prime 95 small FFT 10 minutes 72-74 max temp pretty descent i think
More about600w enough
You should be fine.
Another hard drive isn't going to pull that much power. (A second 7950 would be the only single component I would worry about putting you beyond the power supply.)
It should be fine as the drive requires 7W or less.