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avatar_Beaps

464+ to 128k kit

Started by Beaps, 15:21, 06 October 24

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Beaps

Hello all

I'm looking to upgrade my 464+ to 128+ just the ram side of it etc.

Does anyone have a kit they can sell me?

Shaun M. Neary

You can probably source the parts individually rather than getting a kit.
It's a couple of 41464 IC RAM chips, some sockets and a resistor.
More info was posted here by more knowledgable people: https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/easiest-way-to-upgrade-464-plus-to-128kb-internal-ram/

Currently playing on: 2xCPC464, 1xCPC6128, 1x464Plus, 1x6128Plus, 2xGX4000. M4 board, ZMem 1MB and still forever playing Bruce Lee.
No cheats, snapshots or emulation. I play my games as they're intended to be played. What about you?

GUNHED

Or use an external RAM expansion like the Gemini.

BTW: External RAM expansions do deactivate the 2nd 64 KB of internal RAM anyway (except the X-MEM).
http://futureos.de --> Get the revolutionary FutureOS (Update: 2024.10.27)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

dodogildo

Some people have managed to upgrade their GX4000 to 128k. Wouldn't the procedures similar?
M'enfin!

eto

Quote from: dodogildo on 15:47, 24 October 24Some people have managed to upgrade their GX4000 to 128k. Wouldn't the procedures similar?
It's even simpler as you neither have to solder directly to the ASIC nor solder ICs on top of each other.


Beaps

Ok I have ordered the 2 41464 RAM chips, does anyone have a link to the resistor I need?

Thanks

eto


Bryce

Quote from: Beaps on 19:07, 24 October 24Ok I have ordered the 2 41464 RAM chips, does anyone have a link to the resistor I need?

Thanks

Try reading our very own Wiki some time... https://www.cpcwiki.eu/index.php/464Plus_Conversion

Bryce.

Beaps

I have completed all the steps to upgrade to 6128 not the disk drive part, how do I tell if it all worked 

eto

Quote from: Beaps on 17:58, 30 October 24I have completed all the steps to upgrade to 6128 not the disk drive part, how do I tell if it all worked 
Run a RAM test like Amstrad diagnostics.

Or any of the programs for which you have upgraded your RAM. If your expanded RAM doesn't work, they won't work either.

Beaps

The diag rom doesn't work with the multicart so I can not  test that way

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