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Mac IICX, Mode 32, 32 bit addressing, 32MB ram - Error -34 "disk full" when saving to disk

Sideburn

Well-known member
Anyone know what the cause of this "disk full" error I keep keep getting when 32 bit addressing is enabled to access my full 32MB of ram?
Its a Mac IICX and certain programs cant save to disk.. They error out with a -34 Disk Full alert.

so far the problem apps i've discovered are:

THINK C - building a project
Photoshop 3.0 - saving an image (however using an export plugin does save the file).. Save and save as fail no matter what image file format I select.
ElecricImage 2.0 - rendering a single image works but rendering an animation brings up disk full error during one of its operations.

I have tried, System 7.1, 7.5.5, extensions disabled, etc. Can not figure out how to resolve it and cannot find any info online about it.

Any idea?
 

joshc

Well-known member
Sorry to ask the obvious but how much space is free on the disk? This shouldn’t relate to RAM.
 

Sideburn

Well-known member
Found it after posting.. its a conflict with Apple Thread Manager. At least it is in system 7
my 7.5.3 doesn't have that though and it fails still there..
 

Sideburn

Well-known member
Me neither, and I dont remember it from back in the early days.. the only difference with this machine now from then is I had a radius rocket card in it before so that woulda been an 040 processor.

System 7.5.3 must have the thread manager built in since theres no extension and it fails there but at least its looking like I got it "resolved" our at least bandaid fixed good enough for my needs.
 

Phipli

Well-known member
Me neither, and I dont remember it from back in the early days.. the only difference with this machine now from then is I had a radius rocket card in it before so that woulda been an 040 processor.

System 7.5.3 must have the thread manager built in since theres no extension and it fails there but at least its looking like I got it "resolved" our at least bandaid fixed good enough for my needs.
I'm not sure that your logic board is perfectly functioning yet. I suspect your Nubus cards might work in another computer too.

Whatever you do, do not run a disk repair program on your hard disk.

Do you have any other macs? One from the 90s that is fully working? Yo need to back up your hard disk as soon as possible, given it has been sat for years. And don't trust it to the cx (yet).

Running a long time stored disk, they often fail after a few hours use. So the first thing you do is backup.
 

Sideburn

Well-known member
I'm not sure that your logic board is perfectly functioning yet. I suspect your Nubus cards might work in another computer too.

Whatever you do, do not run a disk repair program on your hard disk.

Do you have any other macs? One from the 90s that is fully working? Yo need to back up your hard disk as soon as possible, given it has been sat for years. And don't trust it to the cx (yet).

Running a long time stored disk, they often fail after a few hours use. So the first thing you do is backup.
Yeah I was wondering the same. My original drive is on its last leg but there wasn’t anything worthwhile on it anyway. I’ve got a newly formatted second drive in it now and an external BlueSCSI.

The logic board is passing diagnostics and disk doctor passed on the replacement drive.

All software has been working ok until i took the 32MB out of the rocket and put on the logic board and installed mode32 to get 32 bit addressing.

I then installed Strata Studio pro which installed the Thread Manager and that’s when the disk full errors began. But as mentioned above 7.5.3 still has the issue. I will try tomorrow 7.5.3 with extensions off and see what happens.

I’m running a 5 hour 3d render now in electric image and it is using all 32 MB and so far no hiccups.

I don’t have any other working Mac with a Nubus unfortunately so I can’t test the two non working cards. Both of my video display cards are working.

I have one spare parts board and another board that may be fixable but it’s a tough one to isolate. It’s starting up and the sound chips are doing a reset but the cpu is dead otherwise. All oscillators annd clocks are working properly. All Nubus chips have been removed during troubleshooting. We left off on the other thread suspecting the cpu might be bad. But pulling them out and swapping from the other board would be a challange.

Is there any other diagnostics software that extensively tests the Nubus that you know of ?
 
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Phipli

Well-known member
Yeah I was wondering the same. My original drive is on its last leg but there wasn’t anything worthwhile on it anyway. I’ve got a newly formatted second drive in it now and an external BlueSCSI.

The logic board is passing diagnostics and disk doctor passed on the replacement drive.

All software has been working ok until i took the 32MB out of the rocket and put on the logic board and installed mode32 to get 32 bit addressing.

I then installed Strata Studio pro which installed the Thread Manager and that’s when the disk full errors began. But as mentioned above 7.5.3 still has the issue. I will try tomorrow 7.5.3 with extensions off and see what happens.

I’m running a 5 hour 3d render now in electric image and it is using all 32 MB and so far no hiccups.

I don’t have any other working Mac with a Nubus unfortunately so I can’t test the two non working cards. Both of my video display cards are working.

I have one spare parts board and another board that may be fixable but it’s a tough one to isolate. It’s starting up and the sound chips are doing a reset but the cpu is dead otherwise. All oscillators annd clocks are working properly. All Nubus chips have been removed during troubleshooting. We left off on the other thread suspecting the cpu might be bad. But pulling them out and swapping from the other board would be a challange.
Going to be silly and say, set up a watch for a Centris or Quadra 650. They are not the most expensive Mac but are an absolute workhorse of a 68k Mac. Get one with an ethernet (AAUI) port on the back, they should have an FPU and more onboard RAM.

  • 040 Processor
  • 3 Nubus slots and a PDS
  • Good speed SCSI
  • Really fast graphics
  • Take cheaper 72pin RAM (up to 264MB!)
  • Tantalum capacitors so no cap leaks
  • Case is fairly rugged
They're not the prettiest Mac, but they're the Toyota Hilux of 68k macs. All you have to worry about in terms of logic board damage is the battery, so try to check the battery condition before buying.

Personally, I'd say they're worth more than they sell for. The UK 68kmla crowd are also basically the 650 owners club, or perhaps 650 Owners Anonymous. Aren't we folks :p @joshc @cheesestraws and everyone else.
 

Phipli

Well-known member
I also have a Rominator on the way if that might help diagnose…
Hummmmmmm...

No, the ROMinator is a great thing to have, but don't use it while diagnosing faults as it masks issues. Off the top of my head,

1. It skips the RAM test, so memory issues are not flagged
2. It skips the RAM checksum, so ROM issues (slot, bus whatever) are not flagged
 

Phipli

Well-known member
The logic board is passing diagnostics and disk doctor passed on the replacement drive.
Which diagnostics?

Is there any other diagnostics software that extensively tests the Nubus that you know of ?
Snooper provided a dummy Nubus card, it isn't very comprehensive though. Apple made a card for testing NuBus but... collectors like to have them on their shelf gathering dust because they have Apple written on them, so they cost a fortune.

Short answer is no.
 

Sideburn

Well-known member
Going to be silly and say, set up a watch for a Centris or Quadra 650. They are not the most expensive Mac but are an absolute workhorse of a 68k Mac. Get one with an ethernet (AAUI) port on the back, they should have an FPU and more onboard RAM.

  • 040 Processor
  • 3 Nubus slots and a PDS
  • Good speed SCSI
  • Really fast graphics
  • Take cheaper 72pin RAM (up to 264MB!)
  • Tantalum capacitors so no cap leaks
  • Case is fairly rugged
They're not the prettiest Mac, but they're the Toyota Hilux of 68k macs. All you have to worry about in terms of logic board damage is the battery, so try to check the battery condition before buying.

Personally, I'd say they're worth more than they sell for. The UK 68kmla crowd are also basically the 650 owners club, or perhaps 650 Owners Anonymous. Aren't we folks :p @joshc @cheesestraws and everyone else.
Just what I need to do. Buy another Mac!
I currently have:

3 portables (1 restored 2 in bad shape)
A Mac 512
A plus
A PowerBook 180 that needs an lcd
A PowerBook g3 lombard
A PowerBook g3 Kanga (needs restoration / repair)
A couple g5 and Mac pros in storage
The IICX
A few other more modern PPC PowerBooks / 17” MacBooks.

And my “real work” MacBook Pro

And that’s just the Apple Mac stuff!

Wow, I have a problem…
 

Sideburn

Well-known member
Hummmmmmm...

No, the ROMinator is a great thing to have, but don't use it while diagnosing faults as it masks issues. Off the top of my head,

1. It skips the RAM test, so memory issues are not flagged
2. It skips the RAM checksum, so ROM issues (slot, bus whatever) are not flagged
That’s exactly why I ordered one. To bypass the ram test while I was trying to fox the board. No need for that anymore…
 

Phipli

Well-known member
The apple diagnostics software. I forget it’s name off hand. It runs a slew of tests. Cpu, sound, ram, harddrive, video….
There are several, you probably mean MacTest, but did you use MacTest, or MacTest Pro? The latter is... More usable.
 

Sideburn

Well-known member
No it’s the one from apple. “Apple Personal Diagnostics”…

Oh and I ran MacEKG and Techtool on it
 
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