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philjay



Joined: 19 Dec 2022
Posts: 35
PostPosted: Fri Aug 09, 2024 9:22 am    Post subject: Reply with quote
Hi, i have ready the pics of 32mb expansion





The battery mod was: cut the +5 between the resistor and the + hole, a cr2032 with battery holder and a diode between +5 and gnd in the lower side of the board.
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Mystic_Merlin



Joined: 15 Oct 2007
Posts: 533
Location: Bangkok
PostPosted: Mon Aug 12, 2024 8:28 am    Post subject: Reply with quote
Right, this is the early SPFQ motherboard, not the Super Pro Fighter with a SPFQ Bios, so it does support 32M indeed. You will need the RTS cart on top to have its functionalities.
For the battery replacement, Kazmat has been using FRAM on his copiers, another nice but pricier solution.
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NorQue



Joined: 08 Jul 2006
Posts: 70
PostPosted: Wed Aug 14, 2024 7:15 pm    Post subject: Reply with quote
Mystic_Merlin wrote:
For the battery replacement, Kazmat has been using FRAM on his copiers, another nice but pricier solution.

This one? I just wish he documented what he has done. That would be quite nice, indeed.
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philjay



Joined: 19 Dec 2022
Posts: 35
PostPosted: Wed Aug 14, 2024 9:46 pm    Post subject: Reply with quote
good to know
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Mystic_Merlin



Joined: 15 Oct 2007
Posts: 533
Location: Bangkok
PostPosted: Thu Aug 15, 2024 7:55 am    Post subject: Reply with quote
NorQue wrote:
Mystic_Merlin wrote:
For the battery replacement, Kazmat has been using FRAM on his copiers, another nice but pricier solution.

This one? I just wish he documented what he has done. That would be quite nice, indeed.


He did make a PCB since then, maybe drop him a message
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