That cpu/gpu combo wants some serious power.
You might want to bump that psu to the 600w or more range.
i am going to buy these parts for my new pc, how will it perform with games such as witcher 2, battlefield 3, AC3? i'm on tight budget and i can afford the following parts:- (i am not gonna OC)
CPU: AMD Phenom II X4 965 AM3 3.4Ghz 512KB 45NM 125W 4000MHZ
GPU: Gigabyte AMD Radeon HD 7870 2 GB GDDR5 DVI-I/HDMI/2x Mini-Displayport PCI-Express 3.0 Graphic Card GV-R787OC-2GD
Motherboard: ASRock 960GM/U3S3 FX AM3+ AMD 760G SATA 6Gb/s USB 3.0 Micro ATX AMD
Memory: Patriot Memory Intel Extreme Masters Viper 3 Series DDR3 8GB (2x4GB) 1866MHz (PC3 15000) Memory Kit PVI38G186C9K
Power Supply: Corsair Builder Series CX 500 Watt ATX/EPS 80 PLUS (CX500)
i already have an HDD and an optical drive that i am gonna use, as for the case i gonna look for an average case that's well ventilated and can fit these parts, i am not looking for an outstanding case