Kaypro 286i - Revision history

FrankRahman at 22:56, 13 October 2026

2026-10-13T22:56:23Z

← Older revision		Revision as of 22:56, 13 October 2026
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	Model Number 81-037 or 81-074		Model Number 81-036, 81-037 or 81-074

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	[[File:Kaypro-286i-12mhz-double bays.jpg]]		[[File:Kaypro-286i-12mhz-double bays.jpg]]
	\|\| Machine posted on Reddit		\|\| Machine posted on Reddit
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			[[File:81-036 286i.jpg]]
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2026-09-28T23:32:32Z

Kaypro 286i C #417311

← Older revision		Revision as of 23:32, 28 September 2026
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	[[File:417311 81-623 back.jpg\|400px]]		[[File:417311 81-623 back.jpg\|400px]]
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			<blockquote>
			J1 may contain a small plastic block, with four hourglass-shaped metal tabs inside it. Note that the two rightmost tabs have gaps in their centers, while the left-most two do not. To change the serial port designation, lift the plastic block out of its socket and rotate it 180 degrees, so that the leftmost tabs now have gaps in their centers. Replace the block in the socket. The serial port is now COM2.

			If there are DIP switches at J1, then set switches 1 and 2 OFF, and switches 3 and 4 ON. If the switch block says OPEN and CLOSED, rather than ON and OFF, just remember that CLOSED = ON and OPEN = OFF.

			The block at J2 controls the printer port designation, LPT1 or LPT2. The instructions for changing it are exactly the same as for J1.<br>(Profiles, July 1987)</blockquote>
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2026-09-26T03:16:25Z

286i Motherboard

← Older revision		Revision as of 03:16, 26 September 2026
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	On MBN14302 U47 is marked "H" and U27 is "L" both have Mitsubishi foil over the windows.		On MBN14302 U47 is marked "H" and U27 is "L" both have Mitsubishi foil over the windows.

			In a descriptive article in Profiles March 1988 they describe that you should see 81-692 and 81-691 in slots U27 and U47. (Order not specified.)

	On both boards the U118 are 81-690A.		On both boards the U118 are 81-690A.

2026-09-14T15:32:16Z

ROMS

← Older revision		Revision as of 15:32, 14 September 2026
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	====ROMS====		====ROMS====
			I suspect that the original ROMs are Phoenix. The ROM is from my loose motherboard. The header on the file says it is a Phoenix. It does not work on my 286i but that may be due to the upgraded video card (VGA) not being supported under the original BIOS?<br>
			[[Media:286i Phoenix ROM Loose Board.bin\|286i ROM 18-1524]]<br>
			I believe it should be 81-1524 and someone flipped the first two digits.

			On my complete 286i there is the "286 Modular BIOS Version 3.03HL Copyright Award Software Inc."<br>
			The files are below and refer to the picture of the motherboard in the #417311 for placement.<br>
	[[Media:286i H ROM -41731.bin\|286i H ROM from 417311]]<br>		[[Media:286i H ROM -41731.bin\|286i H ROM from 417311]]<br>
	[[Media:286i L ROM -41731.bin\|286i L ROM from 417311]]		[[Media:286i L ROM -41731.bin\|286i L ROM from 417311]]

2026-09-14T15:01:01Z

Kaypro 286i C #417311

2026-09-02T17:43:36Z

Marketing info

← Older revision		Revision as of 17:43, 2 September 2026
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	Note: While the marketing shows a black case the versions of the machine we see in the market are white/beige.		Note: While the marketing shows a black case the versions of the machine we see in the market are white/beige.

			==AD==

			[[File:Kaypro 286i ad.jpg\|400px]]

	==News==		==News==

2026-09-02T16:05:09Z

2026-09-02T16:04:22Z

2026-09-02T16:02:56Z

Kaypro 286i C #417311

← Older revision		Revision as of 16:02, 2 September 2026
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	[[File:417311 MB.jpg\|400px]]		[[File:417311 MB.jpg\|400px]]<br>Motherboard
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	[[File:417311 HD FD Control.jpg]]		[[File:417311 HD FD Control.jpg]]<br>Harddrive and Floppy Drive Controller<br>(Hard Drive is replaced so this could be a replacement.)
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	[[File:417311 81-623 front.jpg\|400px]]		[[File:417311 81-623 front.jpg\|400px]]<br>Serial and Parallel Port Card 81-622
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	[[File:417311 81-623 back.jpg\|400px]]		[[File:417311 81-623 back.jpg\|400px]]
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	[[File:417311 1.2 FD Mitsubishi MF504B.jpg]]<br>Possibly the original drive.		[[File:417311 1.2 FD Mitsubishi MF504B.jpg]]<br>A: Drive<br>Possibly the original drive.
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	[[File:417311 360 FD ND-04DT-A.jpg]]<br>Machine likely did not come with any B: drive.		[[File:417311 360 FD ND-04DT-A.jpg]]<br>B: Drive<br>Machine likely did not come with any B: drive.
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2026-09-02T15:58:47Z

286i Motherboard

← Older revision		Revision as of 15:58, 2 September 2026
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	Both MBN6575 and MBN14302 have pin1 lifted and bodged to pin 7 on U53.		Both MBN6575 and MBN14302 have pin1 lifted and bodged to pin 7 on U53.

	On MBN6575 U47 is ~~lebeled~~ 18-1524 (Likely flipped digit from 81-1524).		On MBN6575 U47 is labeled 18-1524 (Likely flipped digit from 81-1524).

	On MBN14302 U47 is marked "H" and U27 is "L" both have Mitsubishi foil over the windows.		On MBN14302 U47 is marked "H" and U27 is "L" both have Mitsubishi foil over the windows.