Mainboard 81-240

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Revision as of 00:01, 25 September 2025 by FrankRahman (talk | contribs) (Created page with "==81-240 General Info== The 81-240 Mainboard was used for both the Kaypro II '83 and Kaypro 4 '83 machines. According to reports it detected if it was reading a single or double sided drive and would continue to function based on that data. The previous board for the Kaypro II was the 81-110. The universal board would replace it for the K2 '84 and K4 '84. {| |- | |- | |} ===81-240 Machines=== {| class="wikitable" |- ! Serial Num !! Board...")
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81-240 General Info

The 81-240 Mainboard was used for both the Kaypro II '83 and Kaypro 4 '83 machines. According to reports it detected if it was reading a single or double sided drive and would continue to function based on that data.

The previous board for the Kaypro II was the 81-110.

The universal board would replace it for the K2 '84 and K4 '84.


81-240 Machines

Serial Num Board Num QC Sticker Monitor ROM Char ROM Notes
#17083 53883 M-681? 81-232 81-146 FrankenKaypro?
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