IIfx-ed Up Beyond All Recognition

Muirium

Member
What do we have here?


IIfx.jpg

Very almost literally kicking around, behind the scenes at a local museum, the beige box on the floor turns out to be a Macintosh… II… fx! Ooh, let's take a looksie.

Desktop.jpg

That's no way to treat a top of the line 1990 vintage Mac! Well, she's on the desktop now at least. Let's pop her open and see what we've got here.

Open Case.jpg

Only took one single screw to pop the lid open, quite a nice design. There's a pair of plastic levers you press in and up it goes. Also: that's the first Kensington lock I've ever seen actually installed. This was a corporate machine, going by its labels, back in its day.

Immediately obvious: one Quantum Fireball SCSI hardrive, floppy drive, two NuBus cards in the slots: they seem to both be graphics cards.

Plan.jpg

But this is where things turn from giddy discovery to a bit of a nightmare. What is all that corrosion? Let's take a look under the drive bracket.

Full Gore.jpg

Oh boy! That PRAM battery is completely and catastrophically blown. In fact, when I tried to flip it out with a screwdriver, the holder came straight off with it! Eep!

Battery.jpg

NOT the finest PRAM battery I've ever seen. I’m glad none of mine ever did this.

I think there's more going on than just a blown half-AA battery, however. The corrosion is much too extensive. It's not just focussed around that blown battery.

Slots.jpg

Rotten card slots!? What happened to you, IIfx? Which hell have you seen?

At this point, I reckoned powering up was quite out of the question. Obvs. As an SE/30 owner—currently mid-restoration, it's still Simasimac—I was interested in the salvage potential of this badly damaged IIfx though. I know its RAM is compatible, and its ROM is 32-bit clean. Let's have a look at those.

ROM and RAM.jpg

The top one is indeed a genuine IIfx ROM. Looks to be in fine fettle, as it was mounted a ways over from the kill zone. Phew!

Going by this helpful guide the codes on the RAM chips say that these are 4 megabyte and 1 megabyte SIMMs respectively. The IIfx was fully populated with 4 of each, for 20 megs total. My SE/30 has only 8x1 megabytes so the 4x4 are welcome. Well, if they still work. That one there—it was the closest to the PRAM battery—is however quite badly hit by whatever foul substance wrecked this Macintosh. Maybe beyond reuse…

Let's take a look at the hard drive. 80 megabytes of Quantum Fireball.

Quantum Fireball.jpg

I put my BlueSCSI into initiator mode to power up this drive and clone its contents. I had just assembled the desktop BlueSCSI and used it to back up my SE/30's drive and another very similar 40 megabyte Quantum Fireball drive from the museum. Initiator mode worked perfectly on those two, which I did immediately before this, using the opened SE/30's power supply. The IIfx's drive whirred into action, but sounded pretty dry and nasty, and definitely louder than its little brother. Its amber LED blinked as it should, and it went up to full speed but the BlueSCSI couldn't get it to talk. A look at the log afterwards showed a lot of this as it tried several times:

* No response from SCSI ID 1
Executing BUS RESET after aborted command
RequestSense response: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
* No response from SCSI ID 2
* No response from SCSI ID 3
* No response from SCSI ID 4
* No response from SCSI ID 5
* No response from SCSI ID 6
RequestSense response: 0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x0A 0x00 0x00 0x00 0x00 0x9E 0x00 0x00 0x00 0x00 0x00
RequestSense response: 0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x0A 0x00 0x00 0x00 0x00 0x9E 0x00 0x00 0x00 0x00 0x00
Nothing from the drive then. That's a shame. I'd hoped a IIfx might have some rare professional software on it, being the Mac Pro of its day. But this drive is thoroughly uncooperative.

So, the conclusion is that this IIfx is seriously effed! I might be able to salvage its precious 32-bit clean SE/30 compatible ROM, and mayyyybe the 16 megs of 4x4 SIMMs might work, if that damaged one isn't too corroded. Perhaps those graphics cards are in working order, I've no means to tell. But other than that, I think this one's a goner.

Such a strange way to meet you, queen of the 68030 age. It's like Sunset Boulevard.
 

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AndyMc1280

Well-known member
ooo FX-uck, to coin a phrase. Poor thing.:cry:
That's nasty. Soo glad my brother's SE30 (still on the original battery dated May '89) hadn't exploded like this. Got off lightly with gooey but not exploded caps and no board damage. Machine still in working order. All now remedied of course.
 

Muirium

Member
You may well be right about the lock. I’m kinda tempted to put it on one of my Macs if the museum are cool with that. They're not sure what to do with the IIfx as it's so clearly damaged. If I build a IIfx Reloaded it'll have to go back to them. 😄
 

Durosity

Well-known member
PSU might still be ok, and if I recall correctly it was slightly more powerful than that of the II/IIx. Nice find though, do they have any others lurking?
 

ArmorAlley

Well-known member
Such a pity.
And a word of defence for these much maligned batteries: they were great batteries in their day. They were just never designed to last 34 years. A Mac dealer back in the early '90s told me that 7 years' useful life is what you could expect out of a Macintosh then and this is what they were designed for. These Maxell batteries lasted much longer than 7 years...

Still, it is such a pity and these pictures re-affirm my dedication to tell sellers on auction sites to remove batteries from the Macs that they are selling.
1720119690875.png


On a more positive note, are there any Apple-only chips that can be salvaged from the board?
If the PSU works, that will also be a big plus.
 

MacUp72

Well-known member
wow, what a battlefield, what did it look like inside 15min after the PRAM battery nuclear attack..
 

Durosity

Well-known member
I do have an unexploded Maxell which when last tested still had about a 3v reading.. so yeah.. if they don’t explode they last a long time!
 

Durosity

Well-known member
Oh, and this is my IIFXs motherboard.. pretty awful too :(
 

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LaPorta

Well-known member
I have a very small request: if you do manage to part out things from it...can I buy the PSU? My IIfx has been hampered by a II PSU ever since I got it.
 

pizzigri

Well-known member
Every chip or IC from the fx is valuable. Inductors too. And let’s not talk about the CPU, MMU or FPU… Bolle’s Reloaded board is the way to go
 

Durosity

Well-known member
Every chip or IC from the fx is valuable. Inductors too. And let’s not talk about the CPU, MMU or FPU… Bolle’s Reloaded board is the way to go
Yeah foolishly I sold my CPU/FPU to joshc so he could fix one of his.. but now I wish I’d kept them for a reloaded board 😢
 

robin-fo

Well-known member
Yeah foolishly I sold my CPU/FPU to joshc so he could fix one of his.. but now I wish I’d kept them for a reloaded board 😢
Shouldn‘t be too hard to buy new ones

Eric Woo on eBay has 50MHz 68030s for sale at a decent price. His 68882 you‘d need to overclock though..
 
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