On Sunday, 24 February 2013 22:51:37 UTC-6, Jayson Smith wrote:
Hi,
I've recently been in contact with someone who has an IIe upgraded to an
IIgs. He has 256K of RAM, so that almost certainly means he doesn't have a
ROM 03. Both of us are blind. I've never seen an IIe upgraded to an IIgs so
don't know how those work. Does it use a completely standard IIgs
motherboard? In other words, if we were to find an IIgs ROM 03 motherboard,
could he do a motherboard transplant?
On a slightly different topic, is there any source other than eBay and other
secondhand places for memory expansion boards for the IIgs?
Thanks.
There is one huge obstacle that has not been addressed yet, and that is the IIe case itself. There was a special IIe case made for IIGS upgrades that had all the corresponding ports to a IIGS motherboard, such as the drive port and adb port. Upgrading an original IIe case means you will have to manually cut out the ports for the IIGS motherboard. Which is quite difficult due to the thickness of the plastic. These upgrade cases went for as high as $400 by itself on ebay and are extremely rare to find.
A ROM 01 motherboard meant for a IIe upgrade has all the extra connectors. A IIe power supply connector and a IIe keyboard connector. Otherwise, to use a standard ROM 01 or ROM 03 motherboard, you will need to adapt a power supply for it and use an ADB keyboard, which will need to have holes cut out of an original IIe case for them.