Unlike a PC BIOS, which is several megabytes, the MCPX 1.0 ROM is tiny (typically 256KB or 512KB). It contains the absolute lowest-level code executed when the Xbox powers on. Its responsibilities include:
If they match, it's a good indication that the file is as expected. If they don't match, you might want to download the file again. md5 %28mcpx 1.0.bin%29 = d49c52a4102f6df7bcf8d0617ac475ed
: Setting up the Global Descriptor Table (GDT) and switching the CPU from 16-bit real mode to 32-bit protected mode. Unlike a PC BIOS, which is several megabytes, the MCPX 1
If you need help verifying the hash on your system, let me know your OS. Unlike a PC BIOS