The C64C was an update to the C64 that brought a more modern look (for its time) to the Commodore 64. After Commodore finished off its stock of motherboards, it also got a new updated “short board” that cost a lot less to produce. By the time the Commodore 64 was discontinued, they were able to make them at about $20 a pop. Pretty good for something that retailed for about $100.
These short boards were not actually 100% compatible with the older version. Many of the parts were not interchangeable with older boards, and the famous SID chip was actually changed. (If you’re curious, you can test this with a C64C by playing Impossible Mission. If you can’t hear “stay awhile…. staaaaay forever!” then you have the updated SID chip.) Compatibility with the older C64 approached 100% but didn’t quite get there.
Anyway, this particular model has one great advantage: lots of empty space under the keyboard for modifications! So below is what I did with mine, in video and in higher resolution pictures.
- Added a reset switch.
- Replaced the KERNAL ROM with JiffyDOS. (My board did not have socketed chips, so I had to remove the old ROM and install a socket.)
- Internally mounted a uIEC/SD — a great sd2iec-based device for mass storage from Retro Innovations. Easily the most gratifying part of this project!
- Installed all four control switches for the uIEC/SD, too, and
- Gave it a gold paint job with a shiny clear coat.
Video and Pictures follow.
In addition to tinkering with old computer hardware, I also like to play at photography.
One of my earliest mod projects is Commie Red.
- Reset Switch
- Sports-car Red Paint Job
Also, this is the C64 that gets the 1541 Ultimate, which you can see in these pictures. My 1541 Ultimate has a specially designed case for earlier units that did not come with a cartridge case.
There are some flaws in my work — I was a bit impatient to complete the painting part of the project and did not take the time to paint the inside of the case first. So if you look for it, you can see the original color in some areas where the case separates.
I’ve finished adding sd2iec device optimization support and a few other things. GameBase Reorganizer for 1541 Ultimate is now GameBase Reorganizer SD and available here at the new official home page.
Here’s a little tip for 1541 Ultimate I owners.
The 1541 Ultimate has a nice audio output feature which gives you the real sounds of a 1541 drive as the virtual drive is accessed.
The Ultimate-II came along and some firmware revisions actually offer two 1541 drives. In order to support audio for both drives, the stereo audio is split between the left and right channels.
For Ultimate-I devices with an updated firmware, there is no possibility of a second drive, yet the default settings for the device have “drive A” only going to one channel.
I found my volume increased when I assigned drive A to both channels in the firmware settings.
Not a big deal, but there it is.
I’ve updated the 1541 Ultimate Firmware page. Instead of trying to update a bunch of forum threads, I’ll keep it here from now on.
This is for Ultimate-I owners who want a more recent firmware revision with additional features over the last official firmware release. More details and download here.
I figured it was time to collect some of my 8-bit/Commodore/Retro projects (some utility software, project pictures, etc etc) into one location.
So here it is. Um, that “one location.”
I’ll be getting some pages and posts up shortly.