joevt's latest activity
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Jjoevt replied to the thread Reconnaissance: Modern Diagnostics for your Classic Mac.I had some more Serial Test Manager notes at https://tinkerdifferent.com/threads/new-diagnostic-tool.4593/post-39652
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Jjoevt replied to the thread Beige PowerPC G3 - IDE HardDrive Replacment?.Does that apply to all 4 revisions of the Beige G3 firmware? Does that apply to Mac OS 9 as well? I've seen Mac OS 9 is able to see...
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Jjoevt replied to the thread Imaging a Bootable Mac OS 9 CD the Hard Way.Was this image 2352/2048 times bigger than the partition created from disk2s1? If so, then it does contain all of the partitions. It's...
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Jjoevt replied to the thread Imaging a Bootable Mac OS 9 CD the Hard Way.A CD has multiple "slices": diskutil list /dev/disk18 /dev/disk18 (internal, physical): #: TYPE NAME...
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Jjoevt replied to the thread USB-Serial Adapter and Cable Options.My serial cable notes at #10
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Jjoevt replied to the thread Reconnaissance: Modern Diagnostics for your Classic Mac.Old World Power Macs have a Serial Test Manager (STM) On a Power Mac G3, it has a menu and prompt like this: >...
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Jjoevt replied to the thread Apple Network Server 700 boot issue.The default boot-device is disk2:aix disk2 is a devalias for /bandit/53c825@11/sd@2,0 The default diag-device is cd fd:diags which I...
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Jjoevt replied to the thread Battery bombed motherboard challenge.Is it the first of these? 1987-03 - 97851DB6 - MacII (800k v1) 1987-12 - 9779D2C4 - MacII (800k v2)
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Jjoevt replied to the thread Drop-In G4 CPU transplant: To G3 B/W from G4 Yikes possible?.My suggestion of creating an Open Firmware script to patch the firmware won't work if you can't boot into Open Firmware. Startup the...
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Jjoevt replied to the thread Apple ][ Card Audio Characteristics.Apple II sound is 1-bit but it's not just a square wave. There's same oscilloscope captures in this video:
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Jjoevt replied to the thread Drop-In G4 CPU transplant: To G3 B/W from G4 Yikes possible?.The firmware updaters from PowerLogix and Sonnet for G4 upgrades do not appear to be in the form of an Open Firmware script so they...
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Jjoevt replied to the thread Apple Network Server MacOS based ROMs found.@startvec.>'excp stores the default exception handler which is _exception This does a throw of the exception vector number. Maybe it can...
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Jjoevt replied to the thread Apple Network Server MacOS based ROMs found.I have a Trace for Open Firmware script that can show what's getting executed. It needs more work but can do some simple stuff. It...
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Jjoevt replied to the thread Apple Network Server MacOS based ROMs found.The nvramrc script and nvram variables that get modified by classic Mac OS are stored in OFpt resources in the Startup Disk control...
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Jjoevt replied to the thread Apple Network Server MacOS based ROMs found.Does the ANS graphics controller or internal SCSI devices work once you are booted using the 1.1.20.1 ROM? #42 describes...