eX_A500_mobo_r5_overview Overview of Amiga 500 rev 5 motherboard. (The Fat Agnus chip in the middle has been removed in this shot.)
1
Overview of Amiga 500 rev 5 motherboard. (The Fat Agnus chip in the middle has been removed in this shot.)
eX_A500_mobo_Rev5_01 A500 motherboard, revision 5 (B52 / Rock Lobster)
2
A500 motherboard, revision 5 (B52 / Rock Lobster)
eX_A500_mobo_MC68000_01 A500 motherboard, the (in)famous Motorola 68000 CPU running at 7.14MHz.
3
A500 motherboard, the (in)famous Motorola 68000 CPU running at 7.14MHz.
2016-01-30 02.54.28 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)
4
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)
eX_A500_mobo_CustomChips_01 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).
5
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).
eX_A500_mobo_Rev5_chips_01 Some of the more important custom chips. Fat Agnus (Blitter, Copper, Chip RAM etc) Paula (Sound, Floppy controller, Serial port), Gary (
6
Some of the more important custom chips. Fat Agnus (Blitter, Copper, Chip RAM etc) Paula (Sound, Floppy controller, Serial port), Gary ("Glue Logic", bus…
eX_A500_mobo_Rev5_AgnusMod_01 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…
7
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…
eX_A500_mobo_Rev5_chips_02 The Denise chip. This is the main video processor in the OCS chipset.
8
The Denise chip. This is the main video processor in the OCS chipset.
eX_A500_mobo_SideConnector_01 The side expansion port. Typically, the harddrives would connect here in a side-cart. Other expansions such as accelerators and FastRAM expansions were possible…
9
The side expansion port. Typically, the harddrives would connect here in a side-cart. Other expansions such as accelerators and FastRAM expansions were possible…
eX_A500_mobo_TrapdorConnector_01 The trapdoor expansion used to expand the memory (RAM). Different
10
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…