New hardware for C64: uIEC

July 19, 2010

uIEC and new JiffyDOS chips

Few days ago I got myself a uIEC/SD ordered from Jim Brain. I also bought a set of JiffyDOSes which should make a perfect match with uIEC. Even though I am a happy 1541 Ultimate user I wanted to get familiar with this device as it and other SD memory card applications using the same sd2iec firmware seems to be very popular. Also, this one can be nicely used in Commodore machines where the C64 Expansion port is not available.  Read the rest of this entry »

How to identify C64 and SID model

July 1, 2010

I have come to notice that the different models of “normal” C64s can cause some confusion. Special models and different casings aside there are two main versions of Commodore 64 – the original hardware design and the new, cost reduced hardware design. There are some differences between these two designs and the greatest difference is the SID chip. Original motherboard design has the 6581 SID chip and the new model has 8580. These motherboard designs comes in the various casings all mixed up.

Four different models of C64

C64 C models can have either motherboard version. A C64 G will most likely have the new “short” motherboard – it’s not 100 % sure however. The brown “breadbin” C64 is always assembled with the old “long” motherboard.

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