A coworker thinks it could be a shot power supply too. The theory is when it warms up, a connection goes bad somehow, and startup fails. I took precautions for static, but it may not have been good enough... CJ: I will try the battery trick. I was very impatient when I changed the battery and pushed the button before, but I will try it for the time you suggest and let you know. Otherwise it's off to the Apple Store Genius Bar or Tekserve again. (as much as I fantasize about a new G5, it's a seriously a buch of bucks, hoping I can fix it cheap) Thanks for help!! -Bruce Meyers > From: CJ Scaminaci <halogenius at sbcglobal.net> > This has happened many a time to me. It's most likely > corrupted NVRAM. > NVRAM stores startup disk and other information. > There really is no way > to clear it other than pressing the CUDA button on your > motherboard. > From: JAK HARVEY <amalao99 at yahoo.com> > perhaps have the power supply tested, it may be > unstable? --- btfarmer at optonline.net wrote: > After replacing my (crashed) second hard drive, my > nice G4 dual 533 will not boot up. > > I turn it on, I get a startup tone, the fans go on, > the light on the front goes on. Then: nothing. No > hard drive activity, the screen stays totally black. > It will not boot from any CD either.