atari8warez Posted July 11, 2012 Share Posted July 11, 2012 (edited) @fortunateson As an alternative to Sloopy's suggestions, If you can wait about 2 weeks for the sockets: 10 x sockets ($0.19/each with free shipping): eBay Auction -- Item Number: 250865607065 9 x 41256 RAM ($0.77/each with $1.95 USA shipping): eBay Auction -- Item Number: 261060329119 My dealings with Far East based sellers were 99% satisfactory.... Edited July 11, 2012 by atari8warez Quote Link to comment Share on other sites More sharing options...
fortunateson Posted July 11, 2012 Author Share Posted July 11, 2012 Thanks for all the parts and buying info - it is greatly appreciated! Quote Link to comment Share on other sites More sharing options...
BillC Posted August 4, 2012 Share Posted August 4, 2012 For those who are concerned with damaging a 130XE circuit board when de-soldering defective RAM chips I found this web-page about a patent for upgrading memory boards which leaves 4164 chips in place but disconnected from power. This was to save companies upgrading ISA PC memory cards from de-soldering the original 4164 chips. Their method is to just cut pin 8(VCC) of a 4164 off close to the chip body, insert an insulator to prevent a possible connection between the chip and VCC, then solder a 41256 on top of the 4164 connecting all 16 pins. This may not look as nice as removing the original RAM chips, but will save a lot of time and eliminate the risk of damaging the circuit board. Quote Link to comment Share on other sites More sharing options...
galvatronlives Posted July 28, 2015 Share Posted July 28, 2015 I have a similar issue with a 130XE. I have some red blocks of bad ram. Unfortunately I purchased the unit un-tested and this is what found out after the fact. I would be willing to pay for someone to repair it for me as I didn't pay much for the unit. I don't like to give up on systems so easily. I'd rather have a working unit. Any help would be appreciated. Quote Link to comment Share on other sites More sharing options...
Joey Z Posted July 29, 2015 Share Posted July 29, 2015 I have a similar issue with a 130XE. I have some red blocks of bad ram. Unfortunately I purchased the unit un-tested and this is what found out after the fact. I would be willing to pay for someone to repair it for me as I didn't pay much for the unit. I don't like to give up on systems so easily. I'd rather have a working unit. Any help would be appreciated. See your PM box... Quote Link to comment Share on other sites More sharing options...
vazquezrick Posted July 30, 2015 Share Posted July 30, 2015 I have the issue with my 130. Anyone willing to repair? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Joey Z Posted July 30, 2015 Share Posted July 30, 2015 I have the issue with my 130. Anyone willing to repair? Sent from my iPhone using Tapatalk see your PM Quote Link to comment Share on other sites More sharing options...
santosp Posted August 3, 2017 Share Posted August 3, 2017 Hi. I want to share my experience also about this. Before two days I decided to check two Atari 800XL, purchased before 8 months from eBay UK. Seller sold these "as is", without many details. One of them had the exact same picture as in the first post here. During power up, Atari boot directly to the diagnostic menu showing the red blocks. Manufacturer of the rams was the MT. So I remove from the board all the 8 rams, and place there 8 dil sockets. First I use the 8 rams of my good working 1200XL. This was the easiest way, because on 1200XL all the ic's placed in sockets from the factory! Then the 800XL start with blue "Basic" screen without any problem. After I started to replace one by one the good rams with the previous extracted ones, till I finally found the culprit. Was only one from the total eight rams, and did all the the rest to look like bad! Quote Link to comment Share on other sites More sharing options...
Gavin1968 Posted August 24, 2021 Share Posted August 24, 2021 On 7/10/2012 at 6:22 PM, sloopy said: it shows the pin 1's connected Hello, I have a 130 that someone did this upgrade to, however the pin 1's of the base chips are not jumped as is shown, do I need to do this? Thanks, Gavin Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted August 24, 2021 Share Posted August 24, 2021 4 hours ago, Gavin1968 said: Hello, I have a 130 that someone did this upgrade to, however the pin 1's of the base chips are not jumped as is shown, do I need to do this? If the left column's 8 chips for the base 64K is still 4164's then it's not required. If the 2nd column's 8 chips for the extended banks has 41256's, but it's only setup for 64K extended so far and not 256 (for 320 total) then it will be required for those... Quote Link to comment Share on other sites More sharing options...
Gavin1968 Posted August 24, 2021 Share Posted August 24, 2021 6 minutes ago, Nezgar said: 64K is still 4164's then Yes they are the 4164's on the left bank. Thanks for the info, I just wanted to make sure this was done correctly. Is there a way to test the extended memory amount to verify it is all there and working? Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted August 24, 2021 Share Posted August 24, 2021 5 minutes ago, Gavin1968 said: Is there a way to test the extended memory amount to verify it is all there and working? Quick way with SpartaDOS X is MEM /X Then run v0.22.0 of XRAM: https://atari.sk/extended-ram-test-0-22-0-xram0220-xex/ Quote Link to comment Share on other sites More sharing options...
Gavin1968 Posted August 24, 2021 Share Posted August 24, 2021 8 minutes ago, Nezgar said: Quick way with SpartaDOS X is MEM /X Thanks, don't have SpartaDOS. Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted August 24, 2021 Share Posted August 24, 2021 OK, so you can still run XRAM from another DOS. Also SysInfo will show some extended RAM info: http://drac030.krap.pl/en-si-pliki.php Quote Link to comment Share on other sites More sharing options...
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