A method and system are disclosed for performing trusted computing for blade devices, such as blade servers or other blade devices. The device is adapted for reversal of airflow through a housing to allow a horizontal position and a vertical position for operation. If a low voltage is detected on the signal after the predetermined amount of time, the high voltage is prevented from propagating to the output of the delay circuit. The target base station may be acquired through a handover procedure, or through a cell selection procedure. By operating OLEDs in the display in both emissive and sensing modes, energy that shines on the display, such as from an outside source can be detected at the same time an image is shown. Seventh and eighth amplifiers have an input that communicates with the output of the fourth, seventh amplifier.