I run him @ 4600MHz with a Noctua NH-D14 CPU cooler, MSI Z77 MPower a board and G.Skill Ripjaws-X Memory 8GB memory (2133MHz, 240-pin, 2x 4GB, CL9) DIMM DDR3 RAM kit @ 2400MHz.
And such a system drive Samsung 120GB and two 256GB SSD840evo SSD830.
As a graphics card is installed Asus R9280X-DC2-3GD5 graphics card (PCI-e, 3GB GDDR5, HDMI, DVI, 1 GPU).
If the core voltage is adjusted too high when overclocking (I 1.256V set) keep the temperatures at 4600MHz within.
The Noctua NH-D14 cools the Prozesser in desktop operating at 32 - 39 degrees and less than Prime, full load simulated on a maximum of 85 degrees. Others wrote it already, you have to keep an eye on temperatures when overclocking. The small manufacturing structure somewhat reduced heat dissipation.
But as I said, full load is never actually achieved !!!
I'd buy it immediately.