Advanced Micro Devices Corporation

J David Schell

Edward C Guerrero, Jr

Joe A Ricks

David M Lynch

Jaime Juarez

A cooling device detection circuit and method for detecting a cooling device in a computer system. In one embodiment, a cooling device detection circuit includes a detection stage and a power management stage. The detection stage is configured to sense an indication that the cooling device is functioning and to assert a signal if the cooling device is detected. The power management stage is configured to turn off a component cooled by the cooling device if the cooling device is not detected.

Circuit for detecting a cooling device in a computer system

Various circuits for shifting the crossing point level of a pair of differential clocks signals are disclosed. In some embodiments, a differential clock driver provides a pair of differential clock signals to a device having a specified valid range for the crossing point of the differential clock signals. A level-shifting device is coupled to one or both of the differential clock signals to shift the crossing point to lie within the valid range. The device may be a memory device in some embodiments, and in certain embodiments the memory device may be DDR SDRAM. A method for configuring a computer system is also disclosed. An actual differential clock crossing point is compared to a specified range for the crossing point. If the actual crossing point is not within the specified range, a level-shifting device is coupled to one or both of the differential clock signals.

Growing community of inventors

Round Rock, TX, United States of America

J David Schell