Action Replay (and all their clones) cartridges are using technology contemporary to Saturn : choice of flash ROM, SDRAM and logic array chips didn't changed for more than twenty years.

As a these kind of chips are no longer produced, even if cartridges are sold as "new", their internals are made of counterfeit and/or second hand chips hence with questionable quality.



Additionally, cartridge cloners have the bad habit to sometimes reduce manufacturing costs by using chips from cheaper suppliers, or to try to gather several chips in a single one. Such kind of "cost-optimized" cartridges work fine in normal case but usually show problems for very specific games, and those requiring expansion RAM are the most sensitive to that.

As an example, one hardware revision of Action Replay developed around the beginning of 2010's uses one CPLD instead of two HCT157 gates and one PAL chip ... and doesn't works with some games requiring expansion RAM.





Long story short, if you bought these cartridges advertised as supporting expansion RAM, then please claim for a replacement cartridge or a refund to the sellers of these cartridges.



If I were you, I would claim a replacement of the Action Replay cartridge because it doesn't works at all, and also because Action Replay carts are usually (but not always) more reliable than red Pseudo Saturn cartridge regarding expansion RAM support.

After that, if the Action Replay cartridge works correctly then please ask a refund for your red Pseudo Saturn cartridge so that a part of your money can return back to you.

(It's important to claim to the manufacturer when the product is not as expected because without this kind of feedback, manufacturers would keep lowering the quality of their products)



I hope this helps. For being a Saturn enthusiast too, it's a pity to see these cartridge cloners not being able to do their jobs correctly even after more than twenty years.