Abstract:
A sub-CPU of a storage system discriminates in advance whether a storage device connected to a SATA bridge is an HDD (a first type) or an SSD (a second type). Upon receiving a power saving shift instruction that does not distinguish a type of the storage device from a main CPU via a SATA controller, the sub-CPU instructs a power control unit corresponding to the discriminated type to perform power control for causing the storage device to shift to a power saving state. The sub-CPU makes an instruction for power control to a GPIO if the discriminated type is HDD, and has a SATA host I/F cause the storage device shift to the power saving state if the discriminated type is SSD.
Abstract:
In a method of controlling an image processing apparatus having a rechargeable secondary battery, in response to reception of a job, an amount of electricity stored in the secondary battery is detected and, whether the detected amount of electricity exceeds a specified value is determined. If it is determined that the stored electricity amount exceeds the specified value, a volatile memory is selected as a storage destination of information to be stored when the job is executed. On the other hand, if it is determined that the stored electricity amount does not exceed the specified value, a nonvolatile memory is selected as the storage destination of the information to be stored when the job is executed.
Abstract:
An information processing apparatus and a fault diagnosis method for monitoring signals relating to the start of a CPU to determine that a failure occurs, in a case where a predetermined signal is not output within a predetermined time period after the output of a predetermined signal, and determine the failure type based on the signal states at the time of the occurrence of the failure to display information corresponding to the failure type.
Abstract:
An image forming apparatus includes a reading unit, a first control unit, a second control unit, and a power supply control unit. The reading unit reads authentication information including a card type and a user code. The first control unit determines, in a state where power is not being supplied to the second control unit, whether a card type included in the authentication information read by the reading unit corresponds to a predetermined card type. The second control unit requests an authentication apparatus to perform user authentication based on the authentication information read by the reading unit. The power supply control unit controls power supply to the second control unit. In response to the first control unit determining that the card type included in the authentication information read by the reading unit corresponds to the predetermined card type, the power supply control unit supplies power to the second control unit.
Abstract:
An image forming apparatus includes a solid state drive (SSD) that stores information, a Serial Advanced Technology Attachment (SATA) controller that reads information from the SSD, writes information to the SSD, and transmits a device sleep (DEVSLP) signal for shifting the SSD to a DEVSLP state, and a power source control unit that can stop power to the SATA controller and transmits the DEVSLP signal for shifting the SSD to the DEVSLP state during a period in which the power to the SATA controller is stopped.
Abstract:
A sub-CPU of a storage system discriminates in advance whether a storage device connected to a SATA bridge is an HDD (a first type) or an SSD (a second type). Upon receiving a power saving shift instruction that does not distinguish a type of the storage device from a main CPU via a SATA controller, the sub-CPU instructs a power control unit corresponding to the discriminated type to perform power control for causing the storage device to shift to a power saving state. The sub-CPU makes an instruction for power control to a GPIO if the discriminated type is HDD, and has a SATA host I/F cause the storage device shift to the power saving state if the discriminated type is SSD.
Abstract:
An information processing apparatus includes an output unit configured to output a direct current after converting an alternating current into the direct current and a power factor correction circuit configured to correct a power factor of the output unit, and is shifted from a first power state to a second power state. The information processing apparatus includes a detection unit configured to detect predetermined return request in the second power state, and a power control unit configured to shift, based on detection by the detection unit, the information processing apparatus from the second power state to a third power state in which processing corresponding to the predetermined return request is performable. The power control unit shifts the power state of the information processing apparatus from the third power state to the second power state after the processing is completed in the third power state.
Abstract:
A job processing apparatus that performs job processing by using power supplied from a first power supply and a second power supply includes a receiving unit that receives a job; a calculating unit that calculates an amount of power consumed to process the received job; a determining unit that determines whether the received job is executable with a first amount of power that can be supplied from the first power supply and the calculated amount of power; and a control unit that performs control so that the job is processed with the power supplied from the first power supply if the determining unit determines that the job is executable with the first amount of power and the job is processed with the power supplied from the second power supply if the determining unit determines that the job is not executable with the first amount of power.
Abstract:
The information processing apparatus according to an embodiment of the present invention includes a power factor correction (PFC) circuit, an interface capable of connecting an optional device, and a power controller capable of turning off the PFC circuit. The power controller does not turn off the PFC circuit while a predetermined optional device is connected to the interface.
Abstract:
An information processing apparatus includes a processor and a first device. The processor executes an operating system and a power control application, which operates on the operating system and controls a power mode of the information processing apparatus. The first device is connected to the processor to communicate with the processor, and notifies the operating system of a return time. The power control application notifies the first device of information indicating the power mode of the information processing apparatus. Based on the information notified by the power control application, the first device determines a return time of which the operating system is to be notified, and notifies the operating system of the determined return time. Based on the return time notified by the first device, the operating system determines a power saving state to which the processor is to shift, and shifts the processor to the determined power saving state.