jc13

Yep - specifically UE8. Mine were MOS branded though, so from what I've read not very reliable. I replaced all 3 while I was at it.

I recently had a similar symptom, but mine didn't clear up as it warmed up - it would lock up completely. I did a couple of troubleshooting things at once, but I believe it came down to one of the original MOS 245s because it fell apart as I was removing it to troubleshoot. Once I put in a new one everything looked good. I didn't really investigate how/if it could have been related, but the VIC's been stable ever since.

I'm not 100% sure this is a bug, but I noticed that if I have the SIO patch enabled when using U1MB and Side2, the ATRs are missing from the loader. With SIO patch disabled, U1MB/Side2 loader will list the ATRs.

Awesome! Thanks for looking at that. I've noticed something strange on Basketball as well. Looks like the computer controlled player can't seem to shoot very well. Looks like it could possibly be a timing issue of some sort since the player doesn't hold the ball long enough to take the shot. Same xex works ok under Altirra.

I saw that thread too, but I was thinking that the lock up described was that the birds didn't fly. The XEX I have that works under Altirra and the ROM from Atarimania both run the intro screen fine, but the game won't start. Is that what you are seeing? BTW, stereo pokey wasn't enabled on my install. I'll see if I can find the 5200 variant. Thanks!

Thanks to atarimac for pointing me in the right direction... Got this working well, but ran into one other issue trying to get my favorite game Bounty Bob Strikes Back working. I've seen other threads about problems running this under emulators and eventually found a copy that worked well under Altirra, but it seems to have an issue on Atari800MacX. Basically it just won't start the game - the birds fly, but no response to keyboard or (emulated) joystick. Anyone else care to give this a try?

I have it running on Big Sur, but I'm seeing some strangeness with the os roms and directories settings occasionally changing to previous values. Seems to be happening after I try to get the U1MB / Side2 expansions to work. I'm not sure what I'm doing wrong there, but after adding the U1MB rom file and selecting an XL machine with U1MB it crashes. I tried running the it from the terminal to see if I could get any additional output, but all I got was a seg fault. Anyone else seeing this behavior?

***SOLD***

Sold to patb1au Looking to sell a tested and working 600XL (NTSC) with 64k RAM upgrade as well as composite / s-video output / monitor jack. The video mod is the one referenced in this link. Also included is a monitor cable and power supply (see pics). $125 + shipping (US only).

Sold

Thanks!

Hey Thom - I was working on making one of these to play around with and haven't found a part number for the pins themselves - can you share that info if you have it? Thanks - John

I have it updated, but am traveling at the moment. I’ll post it as soon as I get back to my computer.

Thanks for checking - I was able to create the couple of parts I was working with, so no need to go through backups!

Got it - thanks for the quick response!