Goochman Posted January 21, 2020 Share Posted January 21, 2020 Anyone have a lead on a shop that can do a 4MB RAM upgrade to my Mega 2ST? Ive already got a 16mhz Adspeed in there if that makes things a problem? Id also consider having a TOS switcher so I could have a newer/modified TOS in there? I have 0 soldering skills so no chance I could do it on a Mega 2. Quote Link to comment Share on other sites More sharing options...
+SoulBuster Posted January 22, 2020 Share Posted January 22, 2020 A mention of where you are located may help. Quote Link to comment Share on other sites More sharing options...
Goochman Posted January 23, 2020 Author Share Posted January 23, 2020 Im in the Washington DC area - Im willing to ship within the US. Quote Link to comment Share on other sites More sharing options...
+SoulBuster Posted January 23, 2020 Share Posted January 23, 2020 Anyone near DC that can help him out? I am mediocre at upgrades, you need better than me. 1 Quote Link to comment Share on other sites More sharing options...
Goochman Posted January 23, 2020 Author Share Posted January 23, 2020 (edited) The Marpet Memory upgrade kit claims to not need any soldering but I cant find much info on exactly what needs to be done to install this. Ive also only found them from overseas sellers. Edited January 23, 2020 by Goochman Quote Link to comment Share on other sites More sharing options...
robdaemon Posted January 24, 2020 Share Posted January 24, 2020 7 hours ago, Goochman said: The Marpet Memory upgrade kit claims to not need any soldering but I cant find much info on exactly what needs to be done to install this. Ive also only found them from overseas sellers. The Marpet Xtra +8 for the Mega ST is likely not what is wanted here - I have that board. It uses the Mega ST's expansion port, and requires TOS 2.06. The RAM is alt-RAM. 1 Quote Link to comment Share on other sites More sharing options...
+SoulBuster Posted January 24, 2020 Share Posted January 24, 2020 Best Electronics has them for sale. They are in the San Francisco area. Scroll down on this page or search "Marpet" http://www.best-electronics-ca.com/520_1040.htm For the alt-RAM I think you are right. In order to use the alt-RAM you may need TOS 2.06. However, there are Marpets that do not require it (i.e. no alt-RAM). I have three without alt-RAM, one is installed in a 1040STF and using TOS 1.04. Just ask before you buy if TOS 2.06 is required. There is one wire that you need to ground. I tinned it (solder on the tip) so it would not fray and then screwed it down to ground. Other than that, it is plug and play as long as the shifter is socketed. Quote Link to comment Share on other sites More sharing options...
Goochman Posted January 24, 2020 Author Share Posted January 24, 2020 52 minutes ago, SoulBuster said: Best Electronics has them for sale. They are in the San Francisco area. Scroll down on this page or search "Marpet" http://www.best-electronics-ca.com/520_1040.htm For the alt-RAM I think you are right. In order to use the alt-RAM you may need TOS 2.06. However, there are Marpets that do not require it (i.e. no alt-RAM). I have three without alt-RAM, one is installed in a 1040STF and using TOS 1.04. Just ask before you buy if TOS 2.06 is required. There is one wire that you need to ground. I tinned it (solder on the tip) so it would not fray and then screwed it down to ground. Other than that, it is plug and play as long as the shifter is socketed. Thanks - so this gave you a 4MB RAM upgrade for your 1040 thats visible to normal TOS 1.04? Quote Link to comment Share on other sites More sharing options...
+SoulBuster Posted January 24, 2020 Share Posted January 24, 2020 Yes. The computer cannot tell the difference? Use this program to check it. https://sites.google.com/site/stessential/system-tools/sysinfo and this program to run several loops of testing https://www.atariuptodate.de/en/1755/gembench Quote Link to comment Share on other sites More sharing options...
+SoulBuster Posted January 24, 2020 Share Posted January 24, 2020 Oh I guess there is a little more to solder. There are three resistors that you have to tie to +5v. But the Instructions are very clear on which ones and how to do it. You just need to melt the solder and pull one end out of the board, solder a single wire to all three (they are right next to each other) and solder the other end to +5v. 1 Quote Link to comment Share on other sites More sharing options...
Umberto Posted July 22, 2020 Share Posted July 22, 2020 (edited) Look in his store under ram https://www.exxoshost.co.uk/atari/store2/ Edited July 22, 2020 by Umberto Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.