Amiga Hardware DatabaseManufacturer Individual Computers, Germany | Date 2018, 2020 | Amiga A500, A2000, CDTV | Interface Agnus socket, Gary socket |
- Memory Expansion
- internal 2 MB ChipRAM expansion
- ACE2 stands for 'Amiga Chipram Extender 2MB'
- uses one 1M×16 DRAM chip
- plugs into the Agnus PLCC socket
- an adapter is installed into the Gary socket, the chip is replaced onto the adapter - this provides signals of pin 35 and 36 to the expansion
- ECS Agnus 8375B, which allows a total of 2 MB chip RAM, is soldered on the PCB
- the Agnus is switchable between PAL and NTSC, but always starts up in NTSC
- with ACA500 or ACA500plus, the video mode in which the Amiga starts can be configured
- memory of trapdoor RAM expansions is disabled, the RTC on it remains active (if present)
- compatible board revisions: A2000 ≥v4.1, A500 ≤v7, CDTV all revisions
- Notes
- as the unit features 2 MB RAM, the Chip RAM on the mainboard is not used any longer
- revision b of the expansion (ACE2b) features a different PCB design, but is functionally identical