[[File:Iram640ramtest.jpeg|thumbnail]]
CPC iRAM is a series of open source, DIY friendly, internal RAM expansions for the CPC 6128 and CPC 464/664 (later hopefully also for the 464 and 664Plus/GX4000).
The iRAM expansion sits in the CPU socket and requires no additional soldering inside the CPC.
* easy to assemble, all through-hole components
Status: workingFinished, PCB needs to will be refactored released in late 2025 === CPC iRAM/1024s === * much smaller than iRAM/1024, more similar in size to fit into iRAM/640* for CPC 464 and 664* single 1MB SMD SRAM, upgrade to 1024K* [http://norecess.cpcscene.net/advancedmemoryusage.html C3 RAM banking] supported* easy to assemble, mostly through-hole components but one SMD SRAM Status: working prototype assembled, release unclear == considered == === PLUS iRAM/1024 === * 1Mb upgrade for Plus series * less DIY friendly, probably needs more complex CPLDs (ATF150x) Status: very early stage, still considering if it's feasible === GX iRAM/512 === * 512K upgrade for GX4000* less DIY friendly, probably needs more complex CPLDs (ATF150x) Status: just an idea
== paused / abandoned ==
=== CPC iRAM/576 ===