Everything You Always Wanted To
But Were Too Polite To Ask
Amiga Technical References
Installation of 2.04 ROM Into An Amiga 2000
For this you will need:
- a 2.04 ROM (37.175)
- Phillips screw driver
- small jewellers flathead screwdriver OR chip extractor
- these instructions printed out since your machine will most likely be
- Turn everything off.
- Open the machine.
- Remove the cover (5 screws, 2 on each side and one at the back)
- Remove the drive chassis (4 screws on the back and either 2 or 3 on the
- Look on the motherboard, you will see the a large rectangular chip
labelled MC68000. Immediately tro the left of that will be the Kickstart ROM
chip and socket. This is the chip you want to replace.
- Remove the chip the easiest way you find possible. (small flathead screw
driver and a lot of patience or just one of the plates covering the
expansion slots at the back alway make a good wedge)
- Determine the REVision motherboard you have in your 2000. This is very
important since not all motherboards are created equal. Look in the bottom
left hand corner of the motherboard and there will be a label. If the label
reads REV 4.2 or higher that's great. If it's less than 4, well, I'm
surprised you are still able to upgrade this machine. If it's 4 or greater,
clip the wire on the 2.04 ROM. This is only needed for really early versions
of the 2000 like the REV3.
- Insert the Kickstart 2.04 ROM in the socket. You MUST match up pin 1 on
the chip with pin 1 on the socket/board. The chip has a half-moon dimple on
it on one end. This is the end that points towards the rear of the machine.
There will also be a half-moon on the motherboard. Look at it and match them
up. VERY IMPORTANT!
- Make sure the chip is in solid and all the legs are in the socket. If you
missed any of them, then this really isn't going to work. Remove the chip,
carefully straighten them out with a pair of pliers and re-insert.
- Once all of this is done. Turn the machine on to see how it works.
The following is valid for A2000 model A (rev < 4.1) if the original
instructions doesn't do it.
- There should be no jumper between pin 1 and 31. Bend up pin 31 so that it
doesn't have any contact with the socket.
- Jumper pin 1 to socket 31. Make sure there's no connection to pin 31.
- Solder a wire from pin 31 to 21.
Copyright © 2000 Amiga Auckland Inc. All rights reserved.
Revised: June 16, 2005.