C103253 REV.5 - STFM 1MB Upgrade

Upgrade your RAM from ST to Falcon.
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rubber_jonnie
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Re: C103253 REV.5 - STFM 1MB Upgrade

Post by rubber_jonnie » Fri Nov 29, 2019 5:40 pm

Well, it's not looking good, the ram I added is removed and its still dead.

Few more things to try, but it may become another donor board ☹️
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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PhilC
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Re: C103253 REV.5 - STFM 1MB Upgrade

Post by PhilC » Fri Nov 29, 2019 5:48 pm

Check out the 74ls373 and 244s. I've had a few of those die lately
If it ain't broke, test it to Destruction.

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Re: C103253 REV.5 - STFM 1MB Upgrade

Post by rubber_jonnie » Fri Nov 29, 2019 11:40 pm

PhilC wrote:
Fri Nov 29, 2019 5:48 pm
Check out the 74ls373 and 244s. I've had a few of those die lately
Thanks Phil, I've found out it has a dead GLUE for starters, but if I'm totally truthful I'm not too broken up over it, and I've decided that it's going to be my Mongrel donor.

Oddly, I seem to have about 5 spare MMUs,which is annoying, so another trip to feed Harry.

It has always been a bit ropey, and TBH I still want to gey my ALPHA board running, so using it as a donor does make a lot of sense and will save some money.

It does only leave me with one testing board, but I can live with that.
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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