5.4.1 BIOS Boot Specification 1.01 The BIOS Boot Specification as defined by Compaq, Phoenix Technologies and Intel provides the means for any device in a system to be identified as an *Initial Program Load* (IPL) device. If the system BIOS supports this specification, the expansion ROM within the card can indicate that it is an available IPL device. The BIOS maintains a list of available IPL devices and assigns a priority to the devices. The user can change to the IPL order/priority of the available devices. If the expansion ROM is used as an IPL device, the IPL code must be contained within the expansion ROM space of the card. The system BIOS calls the Bootstrap Entry Vector (BEV) to boot the operating system. The expansion ROM either copies the OS to DRAM for execution or jumps directly to the entry point of the image contained in Flash. Example ROM code is available which provides an example of how to implement a Plug and Play IPL device. Please see the BIOS Boot Specification for a complete description of all required tables and actions to support this capability.