Dell Optiplex GX620 hangs after firmware update... help

[davide rossetti]

> > > You might also try clearing out the CMOS settings described here:
> > > http://support.dell.com/support/edocs/systems/opgx620/en/ug/A02/advfeat0.htm#wp1132466
> >
> > bingo! clearing CMOS was the right winning thing. now it's ok.
> >
> > - It booted back in A03 BIOS so in the end my first upgrade was not successful
>
> Right. I think I went over it in private email, but for those following
> along at home:
>
> The BIOS update uses the "RBU" feature of the BIOS. We basically leave
> the BIOS image in RAM, set a bit in CMOS, then warm reboot. The bios
> notices the CMOS bit on reboot, finds the image and flashes itself.
>
> If you power-cycle the box rather than warm-booting, the image is lost
> from RAM. This normally wont cause a problem. (I do this *all* the time
> on my laptop when I am testing.) The machine simply boots the next time
> and says the bios update failed.
>
> The RBU method of flashing BIOS is *quite* safe. Since the BIOS does all
> teh work, there isnt much *I* can screw up in my utilities that will
> brick a box. (I've not yet done it, and I have upgraded dozens of
> machines in my lab.) For other things like BMC, it is a different
> story...

aside from my problem, is there a doclet explaining these buzz words
(BMC,RBU,..) ?


-- 
davide.rossetti at gmail.com ICQ:290677265 SKYPE:d.rossetti