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128K with -A ROMs and OA-D34V-22 floppy
Posted by: decle on 2022-03-22 07:03:14 The prevailing wisdom seems to be that the Mac 128K with 64K -A ROMs (342-0220-A and 342-0221-A) cannot be used with the 400K OA-D34V-22 floppy drive. For example: 400k Drive Repair Guide - A Call to Arms!!!!!! I just uploaded a 400k drive LUBE video. I used Silicone Grease rather than Lithium since Silicone won't damage rubber or plastic. 68kmla.org Mac 128K Disk "X" blinking icon and other questions Hello, I'm resurrecting my old beloved Macintosh 128K and recently had it reramed by Charles at Maccaps. After buttoning things back up and turning on the power, I noticed my disk drive had the "click of death" and unplugging the rear sensor from the logic board and cleaning it didn't correct... 68kmla.org However, I don't believe this is correct as can be seen here (apologies for the strobing video, the camera on my phone does not like the Mac video refresh rate): What I have found is that my D34V-22 seems to be very sensitive to electrical noise. It's not possible to run it successfully without the caddie, which makes sorting out issues more challenging. However, once it's wrapped in its aluminium blanket it seems to be willing to play ball with the -A ROMs in my 128K, and System 2.0 appears to boot reliably.
Posted by: ricogonzo on 2023-03-25 21:45:20 I have a similar setup. My mac is a 512k with manufacturer date of 2nd week of July 84. My floppy is also a D34V-22 and is also sensitive to noise and only works with aluminum shield. The serial number on my drive is 943452 which is close to yours. AND, I also have Version A ROMs. I did notice in video that your IWM chip is Version A and mine is Version B. Do you know what month yours was manufactured? I have read so much about the incompatibility with Version A ROMs and this drive and yet mine works flawlessly everytime.
Posted by: wagbox on 2024-09-20 23:54:10 I know this thread is super old, but in case anyone comes across it, I have an early 128k (week 9) with the original, unupgraded board which has this drive in it transplanted from a 512k, and it works just fine.
Posted by: Joopmac on 2024-10-13 00:04:43 I also have doubts because all my drives work with -a roms and the -a roms also accepts the newer -22 drives
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