I just upgraded my friends gaming PC and everything seems to running fine with the side panel off. Once I put the side panel back on, the PC shuts off randomly. The system temp is really high. According the hardware monitor the system temp is at 66C idle. The motherboard is a GA-EP35-DS3L. All the other temps seem to be fine. What should I do to get the system temp down? Components are E6600 @ 2.4GHz, 2GB corsair PC6400 ram, 8800GTS 320MB.