An information processing apparatus including processing means (301) and a peripheral component interconnect (PCI) device (304, 307) includes device control means configured to change a state of the PCI device between a first power state and a second power state in which electric power is consumed less than the first power state, and a power mode control means (A1) configured to control a power mode of the information processing apparatus in the standby state. The device control means maintains a power state of the PCI device in the first power state when a power mode of the information processing apparatus in the standby state controlled by the power mode control means is a first power mode, and changes the power state of the PCI device between the first and second power states in a second power mode in which electric power is consumed less than the first power mode.