Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computing, a POST card is a diagnostic tool that reports error codes produced by a POST. They are used by technicians to troubleshoot computers that refuse to boot. The cards relay POST codes generated by the system, and the system must therefore have a working CPU and BIOS, in ...Full description
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computing, a POST card is a diagnostic tool that reports error codes produced by a POST. They are used by technicians to troubleshoot computers that refuse to boot. The cards relay POST codes generated by the system, and the system must therefore have a working CPU and BIOS, in addition to whatever I/O interface the POST card relies on. Thus, POST cards cannot be used to diagnose the cause of e.g. a dead motherboard. POST cards are desirable in situations where video is not available; either because connecting a monitor is impractical, or because the point of failure occurs before the video subsystem can be initialized.