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Old Mac 7200/120 with a PC compatibility card!

Shawn

Shawn

Lifer
So I got ahold of an old mac with a pc compatiblity card. Anyone have any experience with these? How does this work. Supposidly there is supposed to be a loopback video cable for it but I do not have it.
 
That is a looptrough cable. Those cards contain a complete PC including VGA adapter (a 486 as I suppose). So you can install a PC-OS on that card somehow, I think a special software is required.
 
This is an Apple 590-2104 cable. Maybe you still can find one. It has the following connectors:

[*]DB-15, male
[*]26 pin, 3 rows DOS-card connector
[*]DB-15, female

Note: You'll need an additional DB-15 to VGA converter if you plan to connect the Power Mac to other monitors than older Apple models.

More information about the 7200's PC abilities is here. The cards came with DOS 6.22 pre-installed and some are upgradeable up to Windows 95. The models Apple sold had 100 Mhz Pentium or 586 CPUs, some soldered RAM and often an additional RAM slot. OS switching was done in realtime with a hotkey. Quite an interesting machine.
 
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