Overview of Amiga 500 rev 5 motherboard. (The Fat Agnus chip in the middle has been removed in this shot.)
A500 motherboard, revision 5 (B52 / Rock Lobster)
A500 motherboard, the (in)famous Motorola 68000 CPU running at 7.14MHz.
A500 motherboard, 68000 CPU removed from its socket. (The green wire on the chip to the right is a small hack to make the 2.05 ROM chips work in an A500)
Overview of the main chips that made the Amiga 500 into that great, nicely balanced machine it was back in the 80s. (Fat Agnus chip missing here).
Some of the more important custom chips. Fat Agnus (Blitter, Copper, Chip RAM etc) Paula (Sound, Floppy controller, Serial port), Gary ("Glue Logic", bus…
A Fatter Agnus. This version of Angus (8372A) comes from an A500+ but wht a fairly easy hardware mod, it's possible to upgrade an A500 (rev 5 in this case) to…
The Denise chip. This is the main video processor in the OCS chipset.
The side expansion port. Typically, the harddrives would connect here in a side-cart. Other expansions such as accelerators and FastRAM expansions were possible…
The trapdoor expansion used to expand the memory (RAM). Different "hacks" are possible. By using a Fatter Agnus chip and some soldering and cutting, a 512kB…
The back-plate of the A500. The expansions are (from left to right) 2x Joystick /mouse, Left/Right Audio, Disk Drive, Serial Port, Parallel Port, Power…
Odd and Even CIA chips. The control various task such as Keyuboard, joystick, floppy, parallel port etc. Both chips are identical but assigned to perform…
