An internal 512 Kb RAM expansion for Amstrad CPC 6128 by Eto : iRAM/640
-Eto announced yesterday his iRAM/640, an internal 512 Kb RAM expansion for Amtrad CPC 6128 which needs no soldering at all : remove the Z80, insert the expansion in the CPU socket ! Of you course if you use a DIY kit, you will have to solder the components.
Legacy software that supports the DK'Tronics memory standard will be able to access up to 576K of RAM (the maximum suppored by DK'Tronics). More recent software, like e.g. SymbOS, with support for the enhanced Yarek/RAM7 standard will see the full 640K.
You can read the genesis of the iRAM/640 expansion in this CPCWiki's thread.
My personal point of view, it's a very useful RAM expansion, thanks Eto for your work.