Thanks Charles: On Thu, 2007-10-25 at 22:29 -0400, Charles MacDonald wrote: [snip] > Computer powers on, and does a CPU reset (hardware) > > Processer goes to rom and starts running BIOS. > > BIOS finds Video card and jumps to video init routine, then returns. > > At this point generaly gives first beep. > The point about the beeps is important. I had forgotten that. > BIOS is more or less customised to the Motherboard so it has in rom some > idea of where to look for built in hardware. (keyboard etc. > Rhetorical question; how? > BIOS does memory check and finds memory boundries. > > BIOS looks for Periferals in common places and makes a list for its own use. > Rhetorical question; how? Real question. Should there be a data sheet or some documentation that tells me how the firmware for my machine's BIOS works? Or, is my search fruitless because that info is proprietary? [snip] > -- Regards Bill