#My Fat Agnus Upgrade
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out of the socket. Time = :03
5. I inserted the "Fat Agnus" chip applying finger pressure evenly
across the top until it was snug in the socket. Time = :01
6. I moved the jumper at J101 from the middle/right pins to the middle/left
pins. Time = :01
7. I took a sharp knife (blade on my Swiss Army knife) and carefully
cut the trace between the two pads at J500. I used a very short sawing
stroke. Since it was impossible to get a visual indication of whether
or not the trace was severed, I check the continuity between the two
pads with an Ohm meter. The indication was that the trace was severed.
Time = :03
8. I replaced the power supply and device deck reattaching the floppy cable
to the mother board. Replaced the 7 screws, performed a visual check of
all cabling, and reattached the case (5 screws). Time = :04
9. I booted and voila! A meg of chip ram. Total time for the upgrade was
16 minutes.
Regards,
Paul