Hi Harry, I thought I mentioned this in the original message but I did try a RAM swap by doing exactly what you just suggested. I do hear the boot chime, yes. --- Amir On Thu, 23 Feb 2012, Harry A. Freeman wrote: > Amir, > > Another thought, try removing all but one of your memory modules. If that > doesn't help try removing that memory module and install another module in > another slot. > > As it could be a memory module or the slot that a good memory module is > installed. > Another question that you may have already answered is "When you do a reboot" > do you get the "quick and dirty memory test" chime. It's the chime that you > should hear at boot time. > > Cheers > > Harry