Overclocking, i5 3570k to 4.5Ghz and the GTX 660 GPU slightly overclocked. Extensively tested and stable using the Hyper 212 Plus CPU Cooler. 8GB of 1600Mhz RAM and a 500GB Seagate Momentus XT SSH. Two blue LED 120mm fans and two 24x LG DVD Writers. All in a thermaltake commander MS-I black with Windows 8 Pro 64-bit and a 625W PSU.