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Amiga 2000 REV4.5 Super Denise (8373R4) Upgrade

January 27th, 2011 xAD / nIGHTFALL No comments

I continue to upgrade my Amiga 2000 PAL REV 4.5. After the upgrade of the chip Fat Agnus and the Kickstart/4MB, today i have replaced the Denise chip with a new one. The Super Denise chip is capable of still higher resolutions and bit depths.

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Amiga 2000 PAL REV4.5 Battery & 1MB ChipRAM Upgrade

September 30th, 2010 xAD / nIGHTFALL No comments

I have decided to upgrade my Amiga 2000 PAL REV 4.5 for get 1MB of chip ram. I also took advantage of this update to install a new battery for the system clock. Amiga 2000 PAL REV 4.5 Fat Agnus 8372A Installation:

Install a new Fat Agnus 8372A or 8375 (8375 R1)
Look for jumper J101 beside the power connector to the motherboard. Change it to the opposite position. (photo)
Look for trace J500 at the back of the machine near the Cia’s (8520′s). It’s a jumper trace that you will have to cut with a razor blade. (photo)
Look for trace J102 near the Fat Agnus (8372A). It’s a jumper trace that you will have to cut with a razor blade. (photo)

source: amiga-hardware.com amigahardware.mariomisic.de amiga.org