+JAC! Posted January 3, 2014 Share Posted January 3, 2014 Thanks guys, that shrink tube solution looks very clean. ... on my way to becoming an "expert" :-) Awesome guide Ray! Will try for an 800 XL now... (and now, I don't remember exactly why I ordered 3 :-) 3 Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted January 3, 2014 Share Posted January 3, 2014 Only grey shrink-fit could be more perfect. Quote Link to comment Share on other sites More sharing options...
+JAC! Posted January 3, 2014 Share Posted January 3, 2014 There are also other ares of improvement. I just killed 2 traces by drilling the hole to fix the board in the wrong place . So total number of traces saved vs. killed is currently 6:2... 1 Quote Link to comment Share on other sites More sharing options...
+JAC! Posted January 3, 2014 Share Posted January 3, 2014 (edited) [deleted] Edited January 3, 2014 by JAC! Quote Link to comment Share on other sites More sharing options...
+JAC! Posted January 3, 2014 Share Posted January 3, 2014 (edited) This is how a good day should end. Plus the vias where I soldered the 4 wires to the 800 XL Revision C board like Ray suggested. Edited January 3, 2014 by JAC! 3 Quote Link to comment Share on other sites More sharing options...
atari8warez Posted January 16, 2014 Share Posted January 16, 2014 (edited) This is how a good day should end. Plus the vias where I soldered the 4 wires to the 800 XL Revision C board like Ray suggested. Ultimate 1MB - 800 XL.jpg Ultimate 1MB - 800 XL - Rev. C.jpg Great work Peter, I myself was not able to get my 800XL to work with it no matter how hard I tried (unstable), so I first re-installed it on my 130XE (and wrote that guide) then lately I moved it to my 600XL successfully. I wasn't able to scream YEAHHHH though because now my SIO2PC which works with every model of Atari 8 bit I have is freezing the keyboard on that 600XL. One more mystery to solve (if I can) before I can commit that 600XL to my daily torture Edited January 16, 2014 by atari8warez Quote Link to comment Share on other sites More sharing options...
+Larry Posted January 20, 2014 Share Posted January 20, 2014 I'm going to install my Rev1 Ult 1MB in an 800XL and I think I've got this pretty clear now. Let me run this by some of you who have already done the mod. And thanks for the good pics -- it's really helpful! First, the differences that I see between Rev1 and Rev2 (Lotharek) 1. Cable adapters are now included to make the cable connections for the OS and MMU. 2. Resistors are now on the board (so no cable splicing or trace-cuts). I have one of Dropcheck's adapters. 3. Can't see from Lotharek's pictures -- is a proper 4-wire female header connector w/wires now included in Rev 2? According to the "in the box" description, no connector is now provided. (?) Second, to install my Rev 1 (with resistor adapter) I just need to follow JAC!'s photo of the 800XL and attach a 4-wire header to the signal connection points from the P2 connector on the mod pcb? I'm not big on drilling holes in mobo's so I'll see if I can find a good alternate method of secure attachment. -Larry Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted January 20, 2014 Share Posted January 20, 2014 3. Can't see from Lotharek's pictures -- is a proper 4-wire female header connector w/wires now included in Rev 2? According to the "in the box" description, no connector is now provided. (?) I got no dupont connector nor wires in anything I received. Quote Link to comment Share on other sites More sharing options...
+Larry Posted January 20, 2014 Share Posted January 20, 2014 Presume the header pins are still there? Or might have been replaced with a solder pad? (That looks like it would be really tight.) -Larry Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted January 20, 2014 Share Posted January 20, 2014 (edited) Presume the header pins are still there? The four-pin header on the PCB is just as it always was. It's just that it's now left to the user to obtain parts to plug into it (as it is to find some way of securing the board). Edited January 20, 2014 by flashjazzcat Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted January 20, 2014 Share Posted January 20, 2014 20140103_175015.jpg Someone needs to start making and selling these. Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted January 20, 2014 Share Posted January 20, 2014 Someone needs to start making and selling these. http://www.bitsofthepast.com/?product=super-mmu-adapter Works for me.. Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted January 20, 2014 Share Posted January 20, 2014 http://www.bitsofthepast.com/?product=super-mmu-adapter Works for me.. Sorry Roy - I wasn't on about the resistors. I meant the harting connectors as per Candle's original cables. I consider the more recent IDC adapters carbuncles. Quote Link to comment Share on other sites More sharing options...
BillC Posted January 20, 2014 Share Posted January 20, 2014 http://www.bitsofthepast.com/?product=super-mmu-adapter Works for me.. These aren't required for the version sold by Lotharek, the resistors were added to the circuit board. Quote Link to comment Share on other sites More sharing options...
800xl_1984 Posted August 25, 2018 Share Posted August 25, 2018 Here's the link to my installation guide. It's for the Candle version of the board, so just ignore the part where it explains how to install inline resistors to the ribbon cable, you can still use the same vias on the motherboard for those 4 wires as that part did not change. Good luck.... Does anyone have an updated installation guide for the Ultimate 1MB? I'm especially interested in schematics and photos of the four soldered wires to alternative spots on the 800XL motherboard. Installation instructions on Lotharek's site are simplistic at best, and provide only modest help. Web site said five minute install, which is truly nonsense. No mention of needing $50 in specialized soldering gear to complete the install, as I know no person who has enough hands to solder a wire to the pin of an IC. I'm fortunate I have a spare 6502, because I'm confident I've fried the first one. Quote Link to comment Share on other sites More sharing options...
SS Posted August 25, 2018 Share Posted August 25, 2018 (edited) Does anyone have an updated installation guide for the Ultimate 1MB? I'm especially interested in schematics and photos of the four soldered wires to alternative spots on the 800XL motherboard. I got *A LOT* of help and advice about my U1MB installation on the Facebook "Atari 8Bit Computers" page. I wouldn't have been able to be so successful without them. If you join that page, I'm sure that you will be able to pretty easily find my post from about a month ago. For what it's worth, here are pictures of my own soldered board and the placement of the wires. Full disclosure - my soldering skills are amateurish at best so my wonderful wife did the actual soldering work while I acted largely as a "third hand". Edited August 25, 2018 by SS 1 Quote Link to comment Share on other sites More sharing options...
800xl_1984 Posted August 25, 2018 Share Posted August 25, 2018 I got *A LOT* of help and advice about my U1MB installation on the Facebook "Atari 8Bit Computers" page. I wouldn't have been able to be so successful without them. If you join that page, I'm sure that you will be able to pretty easily find my post from about a month ago. For what it's worth, here are pictures of my own soldered board and the placement of the wires. Full disclosure- my soldering skills are amateurish at best so my wonderful wife did the actual soldering work while I acted largely as a "third hand". I very much appreciate the lead and the photos. I'm incredibly frustrated. Quote Link to comment Share on other sites More sharing options...
seastalker Posted August 31, 2018 Share Posted August 31, 2018 SUCCESS! Just installed my U1MB in my 800xl first try. I wanted to double check the soldering points and appreciate everyone's input. I opted to go with Lotharek's instruction chart because I'd rather put heat to just a cpu if given the choice over a delicate motherboard. If you go this route and compare to pictures, make sure you don't go by COLOR (your wires may be black white yellow red) but by position as shown in Lotharek's chart. 1 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.