----- Original Message ----- From: "Eric Rasmussen" <[EMAIL PROTECTED]> To: "Compact Macs" <[email protected]> Sent: Monday, January 10, 2005 5:42 AM Subject: Re: 800k vs. 400k floppy drives
> > all. It was mentioned I needed a "newer" 800k drive. If the 800k > > drives in > > an SE aren't the newest ones, what ones *are* and where would I find > > one? > > Phil's list of part numbers > > http://www.mandrake.demon.co.uk/Apple/part_nos.txt > > gives some more information but no dates: > > 661-0305 Disk Drive 800K -Black Serial # (MFD-51W) > 661-0345 Disk Drive 800K -Red Serial # (MFD-51W-03) > > So the number on the side of the actual drive should be MFD-51W-03 > [basically anything higher than the original MFD-51W ...] > > Below, Phil seems to indicate that the platinum A9M0106 external 800K > floppy drives all contain MFD-51W-03 drives: > > M0131 Mac 800K Drive -Beige > 661-0305 Disk Drive 800K -Black Serial # (MFD-51W) > A9M0106 Apple 3.5 Drive IIgs, IIc+, Mac > 661-0345 Disk Drive 800K -Red Serial # (MFD-51W-03) > > I have a drive with a red-number sticker placed over a black-number > label that was presumably upgraded in the factory, before being sold. > I'm not sure where it came from--either a Mac Plus or an M0131 drive. > > Best of luck, Eric Thanks for your pointers, Eric. I was able to find a few drives in my closet that fit the description you gave. However, the "red serial" MFD-51W-03 drives don't work any better than the SE drives I tried the first time around. I dissassembled an external Apple 3.5" drive (the platinum kind). Inside, there are two connectors: the cable coming in is connected to a small circuit board, which is then in turn connected to the drive itself. I figured the small circuit board was some sort of circuit to handle the drives daisy-chain ability. I hooked up the drive itself to the 512k motherboard. The machine exhibited exactly the same behavior as with the SE 800k drives-- the drive went immediately into an "eject" cycle (though there was no disk in the drive) that was so rapid I could not even get a disk into the drive. On a whim, I then hooked up the 512k to the drive through the little circuit board that was inside the external drive casing. The drive did not go into the eject cycle, so I stuck in a 400k disk. To my surprise, I got a happy Mac. May elation was soon crushed, as the machine locked up when it hit the "Welcome to Macintosh." screen. The dialog box came up with that message, and immediately the dialog box started flashing rapidly and the computer locked up. I tried a number of known-good bootable 400k disks all to the exact same end. For fun I tried to boot an 800k disk. I got a sad Mac. The conclusion I have come to: Either there is something wrong with the disk controller hardware on my Mac 512k, or there is a modification I need to make somewhere before the procedure you described will work. I tend to want to think more it is the latter. -Nat -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com ---------------------------------------------------------------
