[comp.sys.amiga.hardware] My A1000 has a bad ram chip. Which one is it?

rogers@iris.ucdavis.edu (Brewski Rogers) (11/12/90)

Hi, my one of the ram chips in the chip ram of my A1000 has just died,
and I'm trying to figure out which one it is.

I wrote a little test program, and it appears that locations
418304-418815 are bad. When I write $ffff, it contains $fffb.
From this I assume whichever chip corresponds to bit 3 on the
A1000's 256K expander is bad. Do you know which chip this is?

As a temporary solution, I pre-allocated the memory between 
418304-418815, which lets me run some software, but I sure
would like to have my amiga recover from this amnesia.

Thanks (as usual) in advance!

-bruce

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