Re: Do it yourself upgrade: IIgs ROM 01?

["DeeJ Price" <deej@gte.net>]

>Even if you could burn a 128KB EPROM, it won't physically fit in the
>motherboard (you would need an adaptor plug to get the signals into the
>right locations).  128KB EPROMs are 32 pins, while the IIgs ROMs are 28
>pins.


I am confused by this. Admittedly I dont know alot about EPROMS and chips
and things, however I was planning on attempting this myself. So I got my
hands on an EPROM programmer which will do 128K EPROM. Now I am looking at a
ROM chip on an old adaptec card I had laying arround, its part # is 27c128
and it has a window in the top(I am assuming this means I can erase it, I
got an eraser too). Anyway the point to this story is that this chip has 28
pins and would fit perfectly in the GS rom socket.

Am I wrong in assuming I can erase this chip and burn the ROM01 image to it
and use it in my GS???

I would just buy the upgrade, but this seems like so much more fun :)


DeeJ
deej@gte.net