Print Page - 464+ to 128k kit

Title: 464+ to 128k kit
Post by: Beaps on 15:21, 06 October 24

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?

Title: Re: 464+ to 128k kit
Post by: Shaun M. Neary on 12:58, 24 October 24

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/

Title: Re: 464+ to 128k kit
Post by: GUNHED on 13:27, 24 October 24

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).

Title: Re: 464+ to 128k kit
Post by: dodogildo on 15:47, 24 October 24

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

Title: Re: 464+ to 128k kit
Post by: eto on 16:20, 24 October 24

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.

Title: Re: 464+ to 128k kit
Post by: Beaps on 19:07, 24 October 24

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

Thanks

Title: Re: 464+ to 128k kit
Post by: eto on 20:37, 24 October 24

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

https://cpcrulez.fr/hardware_montage_8x-cpc_464_plus-memory_upgrade_AA.htm

Title: Re: 464+ to 128k kit
Post by: Bryce on 18:58, 29 October 24

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.

Title: Re: 464+ to 128k kit
Post by: Beaps on 17:58, 30 October 24

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

Title: Re: 464+ to 128k kit
Post by: eto on 22:15, 30 October 24

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.

Title: Re: 464+ to 128k kit
Post by: Beaps on 22:48, 30 October 24

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

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General Category => Classifieds => Topic started by: Beaps on 15:21, 06 October 24