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STFM 4MB RAM EXPANSION SUCCESS

Upgrade your RAM from ST to Falcon.
gigi92
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STFM 4MB RAM EXPANSION SUCCESS

Post by gigi92 »

Just to say thank you, you are the gods. Too happy to have an STF with 4MB of RAM. It's hard (dé solder) work but it's worth it !
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atari030
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by atari030 »

Nice one. I'm in the middle of doing this at the moment. Inspired. :-)
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alexh
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by alexh »

Nice. I have a different one to fit to my ST 520 shorty
Senior Principal ASIC Engineer - SystemVerilog, VHDL
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ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
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rubber_jonnie
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by rubber_jonnie »

:girldance:
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Badwolf
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by Badwolf »

Well done.

I've one of these on my shelf since forever that I need to get around to fitting.

Always nice to see the success stories!

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DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
gigi92
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Re: STFM 4MB RAM EXPANSION

Post by gigi92 »

good.... it works very well when I'm at 4MB but when I go to 1MB I have this screen. It worked well in both cases two days ago. I don't understand. if you have any ideas.

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gigi92
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Re: STFM 4MB RAM EXPANSION

Post by gigi92 »

UPDATE : For now i have a black screen with white stripes, exactly like in the post Exxos 4MB Ram Upgrade for C070789 strange issue
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exxos
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by exxos »

Just a small observation that your switch is on top of the metal shifter box, if any of those switch contacts just happened to catch the metalwork , then that could also lead to a crash.

Also have you tried separating the 2 wires to the switch ? They should be kept as short as possible also.
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exxos
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Re: STFM 4MB RAM EXPANSION SUCCESS

Post by exxos »

You could also try this. The black wire can solder anywhere to GND.

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