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Memory RAM upgrade problem. Atari 520STFM

https://www.exxosforum.co.uk/forum/viewtopic.php?t=7802

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Memory RAM upgrade problem. Atari 520STFM

Posted: 30 Jun 2025 22:08
by Wes_T
Hello
I bought RAM memory for atari 520stfm in the store on the exxos forum.
I have a board C103175 so I bought DRAM sticks 44256BP 256x
TC514256AP
after installing I have memory errors. without these RAM's tests go through correctly original RAM MT4C4256. please advise.

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Re: Memory RAM upgrade problem. Atari 520STFM

Posted: 30 Jun 2025 22:33
by exxos
Your missing R71,R72,R73. Anything around 33R to 68R will be fine.

Re: Memory RAM upgrade problem. Atari 520STFM

Posted: 01 Jul 2025 05:31
by Wes_T
:D :D :D
Silly me. They still in the bag.
Thank You!

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Re: Memory RAM upgrade problem. Atari 520STFM

Posted: 08 Jul 2025 20:13
by Wes_T
All done and working. Thank You!

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Re: Memory RAM upgrade problem. Atari 520STFM

Posted: 08 Jul 2025 20:23
by exxos
:bravo: :2k2:
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