GTX 460 requires two 6-pin PCIe connectors which you can find on a 500W unit. However, if you don't even game or use CUDA, you'll never stress the GPU to its full power, thus 500W is easily enough even with a heavy overclock (meaning high voltage) on the CPU. Is your CPU overclocked?
I'd recommend Seasonic S12II 520W, XFX 550W, or Antec Earthwatts 500W, HCG-520, Seasonic X-460/X-560, to name a few.
Asus P8Z77-V | i7-3770K @ 4.2GHz | Scythe Mugen 2 with Noiseblocker B12-3 @ 5V | 2x4GB Samsung 1333 | Sapphire 7950 1100/1450 | Asus Xonar DX | OCZ Vertex 2 120GB | Samsung F4EG 2TB | WD Caviar Green 1TB | Seasonic X-660 | Fractal Design Define R3 | Bitfenix Hydra Pro with Noiseblocker B12-3 fans | BenQ XL2411T | Sennheiser PC350 | Logitech G710+ | Zowie AM-GS | Zowie G-TF
Last edited by lehtv; 05-03-2012 at 05:25 PM.