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30 XVR16*4th Generation Intel® Core™ i7 Based Rugged VME Single Board Computer
Publication No.
500-9300007876-000
Rev. C.0
3.2.5 POST
Each time the computer boots up it must pass the POST. The following is the
procedure of the POST:
• The first step of POST is the testing of the Power Supply to ensure that it is
turned on and that it releases its reset signal
• CPU must exit the reset status mode and thereafter be able to execute
instructions
• UEFI Firmware is readable
• UEFI Firmware checksum must be valid, meaning that it must be readable
• CMOS RAM is readable
• CPU must be able to read all forms of memory such as the memory
controller, memory bus, and memory module
• The first 1 MByte of memory must be operational and have the capability to
be read and written to and from, and capable of containing the POST code
• I/O bus / controller must be accessible
If the computer passes all POST, then the UEFI video banner will be displayed on
the applicable video device, and the board will attempt to boot to the default
storage device.
Because the boards are available in several configurations, the description in this
chapter is related to the standard configuration.