Abstract: Circuits, methods, and apparatus that may determine one or more characteristics relating to a mains power supply received by a computer system, and may then determine a maximum amount of power that may be drawn by the computer system given the determined characteristics. An example may provide a computer system having a power supply circuit that may include a detection circuit to receive a mains power supply and to detect a characteristic of the mains power supply. In response to the detected characteristic, the detection circuit may provide an output to a circuit in the computer system that sets a limit on a current that may be drawn by the circuit. In this example, the characteristic may be an RMS value of the mains power supply waveform, a location of where the mains power supply is being received, a quality of the mains power supply, or other characteristic.

Abstract: A rack system for one or more computing systems is described. The rack system may include support structures, or rack structures, and a housing affixed or un-affixed to the support structures. The rack system may include rails, including telescoping rails, affixed to the support structures and coupled to the computing system. When the rack system is in a closed position, the computing system is positioned within the housing. When the rack system is in an open position, the computing system is removed from the housing and the components of the computing system are accessible. In the open position, only components on one surface of the circuit board are accessible. However, the computing system can rotate, thereby placing the components on the opposing surface of the circuit board in an accessible position. Alternatively, the housing can be affixed to the computing system, and include modifications for access to the computing system.

Abstract: A rack system for one or more computing systems is described. The rack system may include support structures, or rack structures, and a housing affixed or un-affixed to the support structures. The rack system may include rails, including telescoping rails, affixed to the support structures and coupled to the computing system. When the rack system is in a closed position, the computing system is positioned within the housing. When the rack system is in an open position, the computing system is removed from the housing and the components of the computing system are accessible. In the open position, only components on one surface of the circuit board are accessible. However, the computing system can rotate, thereby placing the components on the opposing surface of the circuit board in an accessible position. Alternatively, the housing can be affixed to the computing system, and include modifications for access to the computing system.

Abstract: Circuits, methods, and apparatus that may determine one or more characteristics relating to a mains power supply received by a computer system, and may then determine a maximum amount of power that may be drawn by the computer system given the determined characteristics. An example may provide a computer system having a power supply circuit that may include a detection circuit to receive a mains power supply and to detect a characteristic of the mains power supply. In response to the detected characteristic, the detection circuit may provide an output to a circuit in the computer system that sets a limit on a current that may be drawn by the circuit. In this example, the characteristic may be an RMS value of the mains power supply waveform, a location of where the mains power supply is being received, a quality of the mains power supply, or other characteristic.