Editing Amiga 500 (section)

=== Expansions ===
* Expansion ports are limited to a side expansion port and a trapdoor expansion on the underside of the machine. The casing can also be opened up (voiding the warranty), all larger chips are socketed rather than being [[Through-hole technology|TH]]/[[Surface Mount Device|SMD]] soldered directly to the motherboard, so they can be replaced by hand.
* The CPU can be upgraded to a Motorola 68010 directly or to a 68020, 68030 or 68040 via the side expansion slot or a CPU socket adapter board.
* The chip RAM can be upgraded to {{nowrap|1 MB}}{{efn|name=binpre}} directly on the motherboard, provided a [[Fat Agnus]] chip is also installed to support it.
* Likewise, all the custom chips can be upgraded to the [[Extended chip set|ECS]] chipset.
* The A500+ model instead allowed upgrading by {{nowrap|1 MB}}{{efn|name=binpre}} trapdoor chip RAM without clock, but there was no visible means on board to map any of this as FAST, causing incompatibility with some stubbornly coded programs.
* There were modification instructions available for the A500 to solder or socket another {{nowrap|512 KB}} RAM on the board, then run extra address lines to the trapdoor slot to accommodate an additional {{nowrap|1 MB}} of fast or chip RAM depending on the installed chipset.{{efn|name=binpre}}
* Up to {{nowrap|8 MB}}{{efn|name=binpre}} of "fast RAM" can be added via the side expansion slot, even more if an [[Hardware acceleration|accelerator]] with a non-EC (without reduced data/address bus) processor and 32-bit RAM is used.
* Hard drive and other peripherals can be added via the side expansion slot.
* Several companies provided combined CPU, memory and hard drive upgrades{{snd}}or provided chainable expansions that extended the bus as they were added{{snd}}as there is only one side expansion slot.
* Expansions are configured automatically by [[AutoConfig]] software, so multiple pieces of hardware did not conflict with each other.