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Help to identify memory card ISA-16bit 2MB RAM

Jaginus

Jaginus

Experienced Member
Joined
Mar 1, 2022
Messages
54
Location
London-UK
Hi all,

This card came into my hands, and after looking at Stason and minuszerodegrees, I have been unable to find it or anything like it. There is no information on the card (except "AT RAM CARD" and "Made in Taiwan"). The similar cards on the common sites have - most of the time - 8 switches, and this one has 10 + a jumper. No label at all on its back. Please see the attached pics.

Does anyone know its manufacturer/model or have any idea where I can get more info or similar models so I can extrapolate some data for testing?

Thanks for creating such a great community. If you have any ideas, as crazy as they may be, please let me know.

Regards,
jose
 

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Hi, all again,

While trying to make this card work (without much success), I discovered a logo under some resistors (please see the picture attached, is under the top resistors pack) and, after unsoldering some of them, was able to picture it. Has anyone seen this logo before? I have been trying picture search tooling and services on the Internet without success.

Has anyone seen this before? Could you point me to a brand or manufacturer?

Thanks for reading this and, please, if it rings any bell, let me know.
Jose
 

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There used to be an app (I believe made by a member here) that could scan the entire memory map on your system .

You could then install the mystery memory run the app and get the start address and memory size of the adapter you installed . Note the jumper settings.

Change one of the jumpers, reboot and retest using the app and note how the address changes. So on and so forth.

One member was able to document about a dozen useless adapter this way
 
rmay635703 said:
There used to be an app (I believe made by a member here) that could scan the entire memory map on your system .

You could then install the mystery memory run the app and get the start address and memory size of the adapter you installed . Note the jumper settings.

Change one of the jumpers, reboot and retest using the app and note how the address changes. So on and so forth.

One member was able to document about a dozen useless adapter this way
Click to expand...
Hi rmay,

I appreciate your guidance here. Very much. Will search for the tool in the forum, like right now.

If anyone reading this knows the tool and could point me at it, would also be much appreciated.

Kind regards,
Jose
 
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