A semiconductor device includes a boot-up start signal generation unit configured to generate a boot-up start signal which is enabled in synchronization with a time at which a preset delay period has passed from a time point at which an initialization signal is enabled after a power-up period is ended, and a boot-up period signal generation unit configured to generate a boot-up period signal which is enabled according to a set pulse generated in synchronization with a time point at which the boot-up start signal is enabled.

A semiconductor device includes a boot-up start signal generation unit configured to generate a boot-up start signal which is enabled in synchronization with a time at which a preset delay period has passed from a time point at which an initialization signal is enabled after a power-up period is ended, and a boot-up period signal generation unit configured to generate a boot-up period signal which is enabled according to a set pulse generated in synchronization with a time point at which the boot-up start signal is enabled.

A semiconductor device includes a boot-up start signal generation unit configured to generate a boot-up start signal which is enabled in synchronization with a time at which a preset delay period has passed from a time point at which an initialization signal is enabled after a power-up period is ended, and a boot-up period signal generation unit configured to generate a boot-up period signal which is enabled according to a set pulse generated in synchronization with a time point at which the boot-up start signal is enabled.

Example embodiments disclosed herein relate to altered option read-only memory. A copy of an option read-only memory is stored. The copy is used during a boot process based on a determination that the option read-only memory has been altered.

A semiconductor device includes a boot-up start signal generation unit configured to generate a boot-up start signal which is enabled in synchronization with a time at which a preset delay period has passed from a time point at which an initialization signal is enabled after a power-up period is ended, and a boot-up period signal generation unit configured to generate a boot-up period signal which is enabled according to a set pulse generated in synchronization with a time point at which the boot-up start signal is enabled.

A computing system is provided, including a processor and memory executing a reboot tracking module configured to read out a stored reboot request identifier assigned to a node in the computing system including a first value, and receive a first reboot request to reboot the node in the computing system including a first reboot request identifier. The reboot tracking module is further configured to, responsive to identifying a match between a value of the first reboot request identifier and the first value of the stored reboot request identifier, accept the first reboot request and update the stored reboot request identifier with a second value, receive a second reboot request to reboot the node including a second reboot request identifier, and responsive to identifying a mismatch between a value of the second reboot request identifier and the second value of the stored reboot request identifier, reject the second reboot request.

A computing system is provided, including a processor and memory executing a reboot tracking module configured to read out a stored reboot request identifier assigned to a node in the computing system including a first value, and receive a first reboot request to reboot the node in the computing system including a first reboot request identifier. The reboot tracking module is further configured to, responsive to identifying a match between a value of the first reboot request identifier and the first value of the stored reboot request identifier, accept the first reboot request and update the stored reboot request identifier with a second value, receive a second reboot request to reboot the node including a second reboot request identifier, and responsive to identifying a mismatch between a value of the second reboot request identifier and the second value of the stored reboot request identifier, reject the second reboot request.

Systems and methods include an Information Handling System (IHS) that is adapted to support context-based diagnostics. The IHS may be adapted to determine when a supported diagnostic test has been requested. In response to detecting a request, an operating context of the IHS is determined, such as power status, thermal status and/or status of a user of the IHS. Based on the current operating context of the IHS, the requested diagnostic test is configured to be performed during operation of one or both of a diagnostic boot mode of the IHS and a host operating system of the IHS.

Computer system and method for detecting failure of a mains supply voltage in the system, wherein a first control unit monitors the mains supply voltage, a second control unit monitors whether a system voltage fails, a start-up delay circuit is operated for renewed boot-up of the system after failure of the mains supply voltage to generate an enable signal for boot-up of the system, where the enable signal is set to a low level when the mains voltage signal has the low level, if the mains voltage signal has the high level again, and a delay timer is started with a delay time, and if the delay time has elapsed, then the enable signal for the boot-up is set again to the high level in order to detect whether a computer system has been shut down regularly and/or intentionally, or has crashed on account of an unexpected mains failure.