4MB install issue

Upgrade your RAM from ST to Falcon.
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Furstyandmiserable
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Joined: Sun Aug 04, 2019 3:28 pm

4MB install issue

Post by Furstyandmiserable » Sun Aug 04, 2019 3:44 pm

Hi there,

I’ve just put this board into my 520 STFM, everything went smoothly after following the guides. I plugged everything back in and it would seem its not gone to plan with a black screen. Ive checked everything, made sure the resistors were all in place, moved the large capacitor(C49), checked all of the soldered pins and all looks good. Ive got power lights etc, but no disk activity

Looking over this topic, there are a couple of things that i wanted to ask:

I have TOS1.0 - is that compatible? If not, what is the recommended TOS for this mod?

Is there any common mistakes people make installing this mod?

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exxos
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Re: 4MB install issue

Post by exxos » Sun Aug 04, 2019 5:17 pm

Furstyandmiserable wrote:
Sun Aug 04, 2019 3:44 pm
I have TOS1.0 - is that compatible? If not, what is the recommended TOS for this mod?

Is there any common mistakes people make installing this mod?
TOS version shouldn't matter. Though I would suggest upgrading to 104 as previous versions are rather buggy.

Mostly people either, rip tracks up removing the old ram or damage the vias. Or have bad soldering or shorts somewhere after fitting the new board.

You could post a image of your install to see if we can spot anything obvious first..
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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