Uh... Posted: Tue Nov 11, 2008 11:10 am... Posted: Wed Nov 12, 2008 11:49 am Click to expand... Click to expand... You have just elegantly underlined Bunsen's observation…

Thanks. I'll look into that. Posted: Tue Nov 11, 2008 11:10 am ... Posted: Wed Nov 12, 2008 11:49 am Anybody. Click to expand... Not big on the ole patience there, huh…

It needs a SWIM chip too doesn't it? Maybe that chip is gone, but the power is still hooked up, so the floppy drive powers on and starts to read the disk but then nothing is there …

I'm pretty sure that ROM support for those devices was removed after the Rev.A machines. Luckily you can drop a 333MHz CPU module into a Rev.A : - and a bare Rev.A board should no…

Posted: Tue Nov 11, 2008 11:10 am ... Posted: Wed Nov 12, 2008 11:49 am Anybody. Click to expand... Not big on the ole patience there, huh? First thing to check inside would…

Are you going to offer backlight replacement service now?

There is no magic bullet but persistence, and even that will fail if the PB is unserviceable. Check the AC adapter, for output voltage and temperature, after 5min and 1hr. Is it …

Anybody.

Installed new pram battery as I say on another thread, and these replacement cells seem to work fine, though to be honest, not having a multimeter, I haven't tested the charge prop…

When I powered down for the final time, the battery still had well over 30% charge and it was no more than an hour later when I attempted and failed to boot it up again. I reset t…

There are quite a few possibilities. Just for one, the battery was barely-charged, and the presence of the CD-ROM drive (which is constantly polled by the system 'in case' there i…

I picked up a 3400 on eBay a week or two ago. It was sold w/o an ac adapter but w/ a charged battery. When it arrived, I played with it a bit, booting it up on two occasions. Aft…

I am 99.99% certain these hacks will only work on a 233Mhz Rev A board. Click to expand... Make that 100% on the floppy drive. Maybe there are further hacks that can be done t…

Which reminds me..one of these days I've gotta find a Rev. A iMac somewhere...would be a neat machine to play around with, not to mention that if I keep it original and in good nic…

I'm about to put down $21 for this item: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230304040895 Click to expand... So buy it already! [] ]'>

I am 99.99% certain these hacks will only work on a 233Mhz Rev A board.

From what I gather, 8.6 is the minimum that will run on this iMac, and you say it would need less than 8.6. Does that mean there's no way to get this to work?

^^digging around it looks like the floppy port will only run on systems below 8.6, if the iMac has had the firmware update applied for OS X then that too could be a factor.

Yep, booted into OS 9 and the drive didn't do much except spin and then stop. I also tried inserting a disk before booting and nothing much happened. You would think it would spi…

I assume you're using OS 9 or earlier to try and read the floppy, being as there's no support in OS X

After playing with the drive for a while, I was unable to get it to actually read a disk. It is getting power because it spins for a moment after a disk is inserted, but it seems …

J12: It was actually a common hack back in the day to mount a 20 pin boxed header here and connect a surplus Mac floppy drive to it - worked out cheaper than buying a USB FDD, if y…

I just mounted a connector onto the floppy drive port and tried it. The drive is getting power, it spins when you insert a disk.

I have noticed on an old 333 MHz iMac logic board that there are traces for what appear to be: J12 = Mac floppy drive J11 = CD analog audio J4 = Serial port (Used for IrDA in or…

Expansion chassis are very uncommon. At least one company, possibly Magma, advertised one for the SE and Portable, so anything post SE/II was expandable via an external box. Assumi…