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New 4MB RAM expansion


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#451 seastalker OFFLINE  

seastalker

    Chopper Commander

  • 201 posts

Posted Wed Jul 11, 2018 5:25 PM

Hi! Just wanted to add praise for Simius's Antonia 4MB board, and it's surprising added benefit to me. It tested well on one machine. Then, sheer joy!

 

I was gifted a 600XL with a bad ANTIC (CO21697), CPU Sally 6502C CO14806 and CO60472-D (Delay). EVEN when I replaced those from known working ones it was all bad still with odd black striped screen. ANTONIA+ spare ANTIC and Delay fixed everything in this case.  Some may be ONLY for the U1MB solution but in this case, ANTONIA is perfect. The price now also eats what I would have paid for a new Sally CPU, I now have an extra MMU, and after research of what else I can pull out RAM/Roms as spares! Plus, after screwing up what is said to be simple (64k ram upgrade), this ANTONIA also removes my need to but a soldering iron to the delicate board and the minor expense of 64k upgrade chips.

 

Huge thank you to Simius for this product!! Not only great for many A8s, it is PERFECT for the above story.

 

QUESTION:  My 600XL is fully socketed.  Which redundant ICs may I pull out and save for spares/another A8 that Antonia takes over for?


Edited by seastalker, Wed Jul 11, 2018 5:30 PM.


#452 benb123 OFFLINE  

benb123

    Combat Commando

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Posted Tue Aug 21, 2018 6:36 PM

Hi Simius. I am interested in one to Western Australia. Please advise. Thanks.

#453 Simius OFFLINE  

Simius

    Dragonstomper

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Posted Wed Aug 22, 2018 3:22 AM

PM sent

#454 subzero79 OFFLINE  

subzero79

    Combat Commando

  • 7 posts

Posted Fri Jan 11, 2019 8:23 AM

i need one for my xe 130



#455 SS ONLINE  

SS

    Quadrunner

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  • Location:Lehigh Valley, Pennsylvania

Posted Fri Jan 11, 2019 1:16 PM

My 600XL with ANTONIA board seems to have some incompatibility issues with my Ultimate Cartridge and with the XEGS carts that I have tried. Not a huge deal because there are workarounds because the UNO Cart and SIO devices all seem to work correctly. The 600XL was not upgraded to 64K before installing the ANTONIA; I'm not sure if this is related to my issues or not.

.

Edited by SS, Fri Jan 11, 2019 1:18 PM.


#456 Nezgar OFFLINE  

Nezgar

    Stargunner

  • 1,464 posts
  • Location:Regina SK Canada

Posted Fri Jan 11, 2019 1:22 PM

My 600XL with ANTONIA board seems to have some incompatibility issues with my Ultimate Cartridge and with the XEGS carts that I have tried. Not a huge deal because there are workarounds because the UNO Cart and SIO devices all seem to work correctly.


Does your 600XL have a base 64KB upgrade done, and installed? Even though it is supposedly not required to have any RAM on the main board for Antonia, when I mentioned my SIDE2 incompatibility in a facebook comment, Nir Dary suggested to do the 64KB upgrade anyway to fix. I haven't done that yet in that 600XL, so can't confirm yet.

#457 SS ONLINE  

SS

    Quadrunner

  • 6,240 posts
  • Location:Lehigh Valley, Pennsylvania

Posted Fri Jan 11, 2019 1:45 PM

Does your 600XL have a base 64KB upgrade done, and installed? Even though it is supposedly not required to have any RAM on the main board for Antonia, when I mentioned my SIDE2 incompatibility in a facebook comment, Nir Dary suggested to do the 64KB upgrade anyway to fix. I haven't done that yet in that 600XL, so can't confirm yet.

No. This was a virgin NOS 600XL motherboard that I got from Best before I installed the ANTONIA. Everything else seems to work OK outside of these two issues.

.

Edited by SS, Fri Jan 11, 2019 1:47 PM.


#458 vattari OFFLINE  

vattari

    Chopper Commander

  • 100 posts

Posted Sun Jan 13, 2019 12:49 AM

Has anyone installed the Antonia 4MB upgrade in their 1200XL?

(Bear with me as I’m not across the A8 line as well as I am with the ST range)
I have a stock 1200XL that I wish to install my Antonia in, but am wondering whether the flashable OSes can be used even though the OS chips in the 1200XL are somewhat different. I saw “sockets” are required according to a previous post, but that doesn’t give me any details ;)

TIA!


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#459 Frankie OFFLINE  

Frankie

    Moonsweeper

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  • Location:St. Augustine, FL

Posted Sun Jan 13, 2019 9:59 AM

I have one in my 1200xl. You can remove the OS chips, they will no longer be used. The flashable oss work.

#460 vattari OFFLINE  

vattari

    Chopper Commander

  • 100 posts

Posted Sun Jan 13, 2019 10:01 AM

I have one in my 1200xl. You can remove the OS chips, they will no longer be used. The flashable oss work.


Thanks Frankie. I’ll try this out next weekend (my 1200XL has sat idle for too long ).


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#461 geoanas OFFLINE  

geoanas

    Space Invader

  • 40 posts
  • Location:Greece

Posted Thu Jan 17, 2019 2:24 PM

Just received my board today...Installed on my 800XL...Total success! Thank You Simius!

 

Here are some juicy pictures during installation / testing phase



#462 toddtmw ONLINE  

toddtmw

    Moonsweeper

  • 473 posts
  • Location:Cincinnati, Ohio

Posted Sat Jan 19, 2019 8:43 PM

Are these still available? If so, how much?

Thank you.

Todd




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