What are the different models that I could best buy?
400 - 8k of 16k machine and can be upgraded by adding extra memory in the slots of the machine. This was marketed as a gaming machine which it's design to an extend shows as it's a light weight 800.
800 - 8k to 48k machine and can be upgraded by adding extra memory in the slots of the machine.
600XL - 16k, easy to upgrade (if socketed) by popping in new ram chips and soldering a couple/few wires, depending on the method.
XEGS - 64k, a consolized 65xe.
Why upgrade RAM?
To either gain access to 130XE library and to more modern demo's, games, etc.
Different RAM standards and why do they matter?
Plain and simple comparability as some RAM upgrades have different memory adresses, which means some software might not run or not run correctly under a different standard.
Can and is it worth it to upgrade my RAM by filling out empty RAM spots on the motherboard on my 65xe or 800xe?
Yes, if you have those slots and if you don't want to go all out on the RAM or keep your machine like it was during the machines production life. Watch out for the faulty GTIA's though. You can check for those buy typing in :
10 GR. 9:D=1:FOR X=0 TO 79 20 COLOR C:C=C+D:IF C=15 OR C=0 THEN D=-D 30 PLOT X,0:DR. X,191 40 NEXT X 50 G. 50
And you should end up with something looking like this:
or using my own computers as an example: http://imgur.com/gallery/bAOr0
This is how you can upgrade:
Which RAM upgrade kits are still available? (mainly available for 800XL and later models, unless noted otherwise)
Ultimate 1MB http://lotharek.pl/product.php?pid=67
wizztronics 256K http://www.best-elec...onics 2_256.htm
Rambo XL 256k https://www.bitsofth...ambo-xl-adapter
512k SRAM-Extension by Mega-hz: http://mega-hz.de/An.../512K/512k.html
Due to some upgrades going through production runs of batches and than going out of production until another is announced these might not be available at the time of reading (You could always try and message the creator if they are available still or in the future):
512k SRAM-Extension by tf_hh: Write tf_hh a pm here on AtariAge
Syscheck II by tf_hh: Write tf_hh a pm here on AtariAge
(only works on 64k machines and higher)
Ctirad 576XE http://atariage.com/...ead/?hl= ctirad
(No soldering required, up to 576k of RAM and please not "up to" as it requires you atari be on 128k of RAM before slotting it in to get that amount, otherwise you won't get 576k)
Incognito Don't know where it is available
(only for the 800)
Antonia 4MB http://atariage.com/...on/?hl= antonia (I assume there is a newer location that sells them that I'm not aware of)
(please note, the Antonia has 2 different versions one for the XL line and the other for the XE line)
(Please note I've excluded older upgrades and self build upgrades, like this, for simplicity reasons, otherwise this would become a very long list)
If you have information to add, rectify or remove, please comment so I can change it.
Edited by relo999, Sat Apr 15, 2017 2:11 PM.