Starting a upgrade of a stock mega4 I pick up for $150.00 with no keyboard. I plan on building some enhancements of my own and the expansion slot seems to be just what the doctor ordered. So at this point I have changed the 5 sips that are 4.7 and 10k as the doctor has directed. I have also built the mega fast rom card and the clock un-fu*k board with GAL.
Issues so far.
The previous owner built some 32 to 28 pin rom adaptors so he could run TOS 1.4 in eprom. This is ok but he used the big header pins that basically stretched the socket connections which make the sockets a bucket of loose connections.
Exxos's clock un-fu*k it clock board does not have enough room, the power supply is infringing on its space. Its not a lot so I will grind or nibble the excess power supply area off so it can be seated without impacting the clock un-fu*k it board. I have run the card installed with the supply off to the side and it works fine.
- UG_1000.jpg (321.18 KiB) Viewed 6876 times
Heres a shoot of the prior upgrade for the roms that will hit the trash can.. Notice the size of the socket destroying pins in relation to the properly sized pins in the foreground. When I received the machine they were floating free in side along with the floppy drive. Its amazing there was no real damage other that the rom sockets and the floppy spacers. Floppy screws had fallen out.
