摘要:
A method for powering up a removable circuit card when it is inserted into a card slot of a computer system includes providing power and a clock signal to the circuit card. A communication link is electrically coupled to the circuit card after both the power and the clock signal are provided to the circuit card.
摘要:
A computer system has a bus, a connector for a circuit card, and a clamp configured to selectively prevent removal of the circuit card from the connector when the clamp is engaged. The computer system has circuitry connected to monitor the engagement status of the clamp and to regulate delivery of power to the connector based on the engagement state of the clamp.
摘要:
A computer system has a communication link (e.g., a bus) and a removable circuit card that is inserted into a connector. In association with a change in the electrical state (e.g., one or more signals being disconnected or connected) between the removable circuit card and the connector, at least a portion of a predetermined communication cycle is furnished to the communication link.
摘要:
A server is capable of maintaining a power budget. The server comprises a central processing unit (CPU), a management processor, a power measurement circuit, and a comparison circuit. The comparison circuit receives real time power measurements from the power measurement circuit. A register includes a power budget value from the management processor. The management processor selects a system power performance state for the CPU that utilizes a level of power approximately equal to the power budget value.
摘要:
A server is capable of maintaining a power budget. The server comprises a central processing unit (CPU), a management processor, a power measurement circuit, and a comparison circuit. The comparison circuit receives real time power measurements from the power measurement circuit. A register includes a power budget value from the management processor. The management processor selects a system power performance state for the CPU that utilizes a level of power approximately equal to the power budget value.
摘要:
Data is transmitted between a first device and a second device connected by the communications channel in a computer system. The first device generates a first clock and the second device generates a second clock. The first clock is provided to the second device and the second clock is provided to the first device. Data received by the first device over the communications channel from the second device is synchronized to the first clock. The receiving logic in the first device includes a first-in-first-out buffer The received data is stored in a first-in-first-out buffer until the data is synchronized to the first clock. The first and second clocks have the same frequency.
摘要:
A method determines actual power consumption for system power performance states (SPP-states) of a server. The method comprises initializing the server, performing a worst case workload test, measuring power consumption of the server at one or more SPP-states, and adjusting values in a lookup table to reflect the measured power consumption of the server.
摘要:
A method determines actual power consumption for system power performance states (SPP-states) of a server. The method comprises initializing the server, performing a worst case workload test, measuring power consumption of the server at one or more SPP-states, and adjusting values in a lookup table to reflect the measured power consumption of the server.
摘要:
A computer system has a central processing unit and a bus. A first bus device and a second bus device are connected to the bus. A circuit is connected to configure the second bus device to be addressable by the central processing unit via the bus only by interaction with the first bus device. The first bus device may be an I.sub.2 O processor, and the second bus device may be an I.sub.2 O subordinate bus device.
摘要:
A device causing a faulty condition in a computer system having devices is isolated by detecting for a faulty condition associated with the devices and identifying the device causing the faulty condition. The devices are coupled to a bus. The faulty condition includes a bus hang condition. The devices are turned off when a bus hang condition is detected. The devices are then turned back on to test the devices. Each device is tested by writing and reading its configuration space. Information on the bus associated with the faulty condition is stored. The stored information is retrieved after the faulty condition has occurred, with the stored information including address, data, and bus control information.