Thanks Everyone; Your replies gave me a good overview and I picked up enough terminology to do an effective search in Wikipedia (e.g. Power On reset; EEPROM; etc.) I have a brand new mother board so I will check the specifications on that. I will google over the next few days and see what I can get together in the way of combining notes from cut and pastes. On Sun, 2007-08-19 at 13:42 -0400, William Case wrote: > Hi; > > I didn't want to steal a thread from someone who has a real problem, but > an issue was raised in the thread entitled 'Grub' by Marko Vojinovic > that has been bothering me for a long time. > > "And to my surprise, there the question was repeated, more > specific: "what happens between the points of pushing the power > button and the point when OS starts to load?" ;-) > > I was amazed !! The sequence of actions was explained in a way > that did not need any too technical background knowledge, while > at the same time it was extremely detailed. It started off along > the lines of "voltage on the circuitry rises, and the oscillator > starts ticking. The first few ticks activate a circuit that > sends a reset signal to the processor...". > > The moral of the story: it was way more complicated than I > thought, while the author was stating that the answer is > somewhat oversimplified..." > > I have been trying to find that answer for some time now. > > What happens in the micro-seconds between hitting the power button until > BIOS is loaded from CMOS into RAM memory? There is lots of information > available about what happens next. > > I have googled etc. for a source of this information. There is none > that I can find. As I said, lots of 'How BIOS works' none on 'How power > up/on works'. Any directions, recommended reading or explanations would > be warmly appreciated. > > -- > Regards Bill > -- Regards Bill
