Case s T.A.C. 1.1??

Intel recommends using a Thermally Advantaged Chassis version 1.1 (TAC 1.1). These chassis are designed to provide an ambient system temperature of 38°C. The chassis cover provides an air duct above the processor, which allows cool air to be directed at the processor and the heatsink fan which will also cool the components around the processor. Typically, a TAC 1.1 chassis also provides a vent over the graphics card area, to bring cool air to the video adapter.