Re: [cobalt-users] Msg for Gerald Waugh - re fried BIOS on Raq4i

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Monday 30 December 2002 15:53, Bruce Timberlake wrote:
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> > BIOSes are written for very specific hardware.  A K6-powered
> > RAQ3 or RAQ4 is very, very different from a PIII-powered RAQ550.
> > Different CPU, bridge chipset, IO controller, et cetera.
>
> And the RaQ 550 OSRCD has correct ROM images for each type of
> hardware...
>
> > If you did indeed successfully (though I use the term ironically)
> > flash the BIOS, you'll need to pull the now-bad one and replace
> > it with another.  I believe Bruce Timberlake and others gave
> > details a few months ago, perhaps on -developers... check the
> > archives.
>
> Wasn't me -- I think it was Gerald.  Also, "pulling" it is The Tricky
> Part -- it's not a socketed chip, it's soldered in place.  And I
> don't even know what type of chip it is, or where to get a
> replacement, etc.  Or how you'd boot the box enough to get a
> "Sun-issued" image into it provided you could replace the chip.  You
> need a standalone ROM burner I think...

Yes pulling the chip, is a little touchy.
The EEPROM is AM29F080B-90EC.
I need to get more anyone know where i can buy some.

We install a socket on the ones we repaired so far.

Gerald

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