| 摘要 |
An i/o device on a system board has an input pin coupled via a resistor either to a logical high voltage in a first configuration or to a logical low voltage in a second configuration. The first and second configurations signify first and second power capabilities, respectively, of the system board. Before or during the boot process, a determination may be made whether a processing device installed on the system board is a high-power processing device, and a logic level of the input pin may be read. If a high-power processing device is present and the logic level of the input pin indicates the system board is not capable of supporting a high-power processing device, then the boot process may be stopped.
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