There are a couple 68040 accelerators for the IIfx, along with the Radius Rocket, thats it.

It might be overheating. The original thermal paste between the CPU and heatsink has almost certainly dried out, if it hasn't been renewed. Also check that the heatsink clip is t…

LEM says not

Very nice modification. Shame that OS X won't support the resolution. Wonder if you can get a CRT tube that will got higher than 640x480 in the same dimensions.

On a side note. Did they ever make a compatible PPC upgrade for the IIfx? Or is expansion seriously limited due to the unique architecture of the motherboard?

Howdy all I've got a ye olde G3 beige desktop, with a zip drive, 256MB RAM, 8GB disk, etc. OS X 10.2.8. It will work correctly for about 30 mins - an hour, but will then turn off…

Back in the day when Gamba was with us (RIP, Gamba.) Click to expand... Wait what happened to him?

Are there any DIP switches on the card that need adjusting, or have you tried adjusting the backside cache speed using CPU Director? JB

grats! Id love to find one myself one day Click to expand... It is surprising what you can find by posting an ad for 'unwanted macs, will pickup' Over the past year I have fou…

I've been running this 8500 with a Sonnet 500MHz G3 processor for years. I've had no issues with it and I've been quite satisfied. I've rigged this machine with 768MB of memory, …

Just out of curiosity, regarding all this thread, didn't Apple have more than one manufacturer for the CRTs? I'm thinking something like that wouldn't be any different of a situat…

grats! Id love to find one myself one day

That last paragraph is key, and very good news for me, who has a IIfx to get up and running soon.

Make sure you installed the batteries correctly and they're the type that are supposed to be soldered. If I were you, I would install 3.6 V battery holders so you don't have to bo…

I recapped both of my IIx systems and the IIx spare motherboard, they are reliable now. Not realy that many capacitors (or values) needed.

As I have no idea how to test the onboard capacitors I will have to replace them all. oof Click to expand... Well that's a good thing anyway, as they are over 20 years old!

Surface mount caps can leak from underneath and sometimes you wont see the goo until you remove them. Click to expand... 9 out of 10 times i hear that i think people are mistak…

If you've got an SE there's about a 50/50 chance of having one or the other from my observations. The Samsungs are rare in Classics and Pluses/pre-Pluses. As I mentioned in my stic…

PSU is a refurb I purchases as initially I thought it was faulty. As I have no idea how to test the onboard capacitors I will have to replace them all. oof

Surface mount caps can leak from underneath and sometimes you wont see the goo until you remove them. Capacitors inside the PSU itself are probably due for replacement anyway.

No luck even after the MC68030 which was 'borrowed' from a working Mac.

So, I've recently discovered that Carnegie Mellon's computer club owns a Lisa 2/10 (unfortunately with Mac XL mods). I'm trying to get this machine operable again, but we want to …

From my notes: The IIfx introduced a new implementation of Mac SCSI that was faster than previous versions. Unfortunately, IIfx SCSI introduced a set of quirks that are unique to …

Check Scott's stickied thread on CRTs - the compacts used CRTs made by both Clinton Electronics and Samsung.

The 550 board is, if I recall, identical to the Color Classic II and is easily swappable. Keep in mind the 520 and 550 use the 68030; the machines mentioned in the original post al…