Tag: ram upgrade

Upgrades a Revision 8A Amiga 500 motherboard to 2 MB of Chip RAM with a soldered internal module.

The product page exposed a login-or-register-to-buy path on 2026-07-27. It is only for Amiga 500 Revision 8A motherboards, requires soldering, and makes the trapdoor RAM expansion unusable. The current Revision 3 no longer needs the LSP connection shown on page 6 of the older fitting manual, so follow the current seller note rather than that obsolete step.

Upgrades an original Commodore 1764 REU from 256 KB to 512 KB and supplies parts that can also repair or expand other 17xx REUs.

The current Shopify product page exposed a priced checkout product on 2026-07-29. This is a component kit for an original REU, not a complete memory cartridge. The page does not provide a complete board-revision-specific installation procedure; use appropriate Commodore service information, ESD precautions, and an experienced installer.

Replaces an Atari ST or Mega ST memory subsystem with a 4 MB expansion and a motherboard-specific adapter.

The Heron board and three current adapters exposed order paths on 2026-07-27. A complete installation requires the Heron plus either the C070789-001 Revision F adapter, the C070523-001 Revision D adapter, or the universal socketed-MMU adapter. C070859-001 Revision 2.0 and C103414-001 adapters were still described as in development. The Shifter must be socketed or desoldered, the original RAM must be disabled, and A9 and WE wires must be connected. This is a skilled mains-exposed internal installation; disconnect power and choose the exact motherboard adapter before ordering.