'91 TDS 256KB RAM Card for the HP-48 SX

[d b]

(03-23-2015 01:32 PM)rprosperi Wrote:  

(03-23-2015 01:22 PM)MattiMark Wrote:  Hi all,

I have tried it in both ports on the GX, but with the same results... No joy.
So what do you all recommend me to do?
/Matti

Totally out of left field suggestion: Since this card seems to be quite rare, sell it to a collector and get 2 normal 128KB cards that behave normally. Sorry, not a technically savvy suggestion, but it may get you to where you want to be faster than continuing to fight with old/undocumented equipment.

One last thing - have you checked that card in a different GX and/or checked a different (e.g. 32 or 128KB) card in this machine to verify your machine is working properly.

That's a good suggestion. Ebaying it as memory for the TDS 48 surveying system or advertising it in the classifieds of P.O.B or Professional Surveyor would find a buyer that is willing to pay because he uses it to make money and he'll already have the card with software to drive it. I don't remember exactly when they started the ability to access your full card. Maybe as early as v4.02, for sure by 4.12.