Recent content by Jockelill

How big was the first run?

So, I found the issue. It's more of a "feature" than actual bug. I had added support for large (128MB) simms by doing: The change to the RAM sizing code is: A0168 223C 0000 0100 Move.L #$100, D1 Changing that to: A0168 223C 0000 0000 Move.L #0, D1 As per Rob...

Can you also take a picture of the ROM in the machine with the power on? There are a few LED that give a lot of information.

Does it chime with the hacked ROM? Are you getting picture? I've been running this ROM in my Q650 for a long time, but not sure if the Centris has like a different gestalt ID or so.

Thank you 😌! The only things so far is raising the clock speed to 33Mhz, PDS FPGA, 256MB RAM and that 16MB ROM, the Q900 can do around 37Mhz maximum, but I’m missing a crystal for that. Also not sure my FPGA will like that, but only one way to find out. I know the FPGA breaks up when you...

These are the stock ratings. Most PSUs today have a weaker 3.3V and 5V (around 20A) and a very strong 12V. Typically the -12V is 0.3A

Thank you :), yeah, I’m running the fans at 40% min and they are very quiet. This case is basically open in the lower part (just a mesh), so makes sense to have speaker that way (also a mesh underneath it) :) power supply is also in the lower section and 550V, it’s a bit low on -12V and 5V...

Here is a short description of my own project for #Marchintosh 2025 that is nearing completion. An RGB 900 :) . But first a short background, I have several Quadra 900 logic boards that I have been thinking about what to do with(besides the obvious – playing with them on my bench). Since long...

Do you have a SCSI2SD v6? I’ve found that it emulates a mechanical drive better than the BlueScsi. As you know I have issues with rom disk driver and mechanical drives, but it works with BlueScsi (and Zuluscsi, but they use same principle and hardware). I guess the mechanical drives and scsi2sd...

I can confirm that the connector from Quest Comp works fine and that the company does deliver :).

Someone at Apple is definitely reading :). The schematics for the stb was released yesterday: https://68kmla.org/bb/index.php?threads/apple-interactive-tv-box.716/page-4#post-501810

I've played a bit more with the unit here. Since it's essentially an LC475 with added video circutry I've experimented with a patched LC475 8MB ROM with added ROM disk driver and OS (my LC475 patched ROM has both ROM and RAM disk driver). It will boot, but not display video (and I know others...

Here is the system extracted from the ROM, I believe it's slightly different than previous red ROM, this one contains "swedish keyboard" for instance.

I also have a "telia unit" here that I got only a few days ago, it belongs to my dear friend @jajan547 who lets me play with it for while before sending to him :). The RAM test is at least located at A191C, 7000 72FF 2448 If you change that to 4ED6 72FF 2448 it will no longer test the ram (if...

Another amazing find :)! Great job Jake!!