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  1. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    6.0.8 was set as the first partition and 8.1 was set as the second. Didn't matter if I used Silverlining or Drive Setup (not Drive Utility) to create the partition - 6.0.8 wouldn't boot into 8.1 and 8.1 would completely ignore the 6.0.8 partition. I can boot into 7.5.1 from 6.0.8 (7.5.1 is...
  2. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    I removed the Silverlining partition I had on my internal Quantum 1.2GB drive and created a new partition using Drive Utility 1.4 (the partitions created were OS 8.1 and System 6.0.8 - no System 7 stuff here). For whatever reason, this original caps IIfx doesn’t like switching from 32-bit to...
  3. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    More oddities for your reading pleasure: (1) So I booted into 6.0.8 from my 7.5.1 partition (everything is fine at this point). When booting back to 7.5.1 with the 20SC still on, I'm greeted by a System Bomb halfway through the boot process - this time it's complaining about the "Global Village...
  4. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    I was thinking more along the lines of my partition becoming corrupt by an inferior download (i.e., System Bomb), but interesting thought nevertheless. Besides it's always nice to have the original physical Apple copy for software releases. Just my preference. Small stuff like TattleTech, etc...
  5. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    I have a 7.5.3 restore disc for the Performa 5200 series. The IIfx won’t boot from it (says I need to run the disc from the Installer). The Installer says the opposite and alerts that I need to restart the computer and boot from the disc. 🤪 The only “official” install discs I have are 7.5.0 and...
  6. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    Running into a strange issue with 24-bit mode in 7.5.1 - details below: (1) When wanting to boot into 6.0.8 on the 20SC, the IIfx prompts me to restart in 24-bit mode (no problems here - everything is fine). When I want to go back to 7.5.1, the IIfx remains in 24-bit mode and boots normally with...
  7. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    I plugged in my external 1.2GB drive and changed the main SCSI ID of the internal Quantum 1.2GB drive from 0 to 1. From there I used by Silverlining 5.7 disk and reprogrammed the SCSI setting on the 80MB Quantum drive from 0 to 2. Lastly, I reset the internal Quantum 1.2GB's ID back to 0.
  8. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    Here's a pic of Drive Setup in OS 8.1: The program is called Silverlining (Version 5.7). It was bundled with the final external Apple SCSI drives that were produced by LaCie for Apple around 1997. I do have a manual but its a TeachText doc so I'll need to find a way to convert it to a PDF. I'm...
  9. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    I have the internal Quantum drive set to ID 0 and the 80MB Quantum set to ID 2 by Silverlining. There’s no conflict on the SCSI bus and everything is working fine.
  10. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    Installed Silverlining 5.7 on the 80MB Quantum drive. I can now control and set the SCSI ID through software - no need to worry about the ID selector on the back of the 20SC. This HD shuts down and restarts the IIfx when prompted - not when it feels like it. Clearly something was goofed up...
  11. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    The black terminator thing is a myth IMHO. I’ve owned a IIfx for nearly 10 years and never had any issues using whatever terminators I’ve had on hand. Besides, this isn’t a termination issue - it’s now about getting another drive to interact with the SCSI ID cable in my 20SC since my ST-225N is...
  12. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    Never really cared for that. I could reformat my 1.2GB Quantum drive and add another partition for 6.0.8 - but I'd like to know how to get the ID selector on the back of the 20SC to work with the jumper array of another drive besides the ST-225N. I had the same problem with my AVID SCSI case -...
  13. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    So I removed the ST-225N from the 20SC case. It was fairly easy - even though the HD bracket is held in by those stupid plastic pressure tabs that always get brittle and break. Fortunately, the bracket is interchangeable with both 3.5” and 5.25” drives. However, the 20SC seems to have been...
  14. Concorde1993

    My "New" Mac IIfx Sees My Seagate ST-225N as a "Large Volume That Cannot Be Used"

    Updating this as I transferred the data from the ST-225N to my 1.2GB Quantum drive that was partitioned using Silverlining 5.7 A few things: (1) The ST-225N refused to be detected and initialized by the Silverlining 5.7 software (I would get either a system bomb or the Finder would hang...
  15. Concorde1993

    Adaptec 2906: (-69) Bus Error When Accessing PowerDomain Control Utility

    Did some more reading and found reference to Firmware V1.1 here: Unfortunately Adaptec's link no longer works and a Google search provides no direct download for this Firmware revision. Also interesting is the last bullet point, which notes that optional SCSI cards in some G4 computers are not...
  16. Concorde1993

    Adaptec 2906: (-69) Bus Error When Accessing PowerDomain Control Utility

    I’m pretty sure version 1.3 came included with the updated firmware. I didn’t see a separate link to update just the firmware.
  17. Concorde1993

    Adaptec 2906: (-69) Bus Error When Accessing PowerDomain Control Utility

    So I downloaded version 1.3 of Adaptec's 2906 driver from their Microchip website, and version 6.1.2 of the PowerDomain control utility. Same problem as before - the Adaptec driver works perfectly (it recognizes my external SCSI drives and mounts them to the desktop) but the PowerDomain software...
  18. Concorde1993

    Adaptec 2906: (-69) Bus Error When Accessing PowerDomain Control Utility

    I'm using the B&W's main Quantum HD. I could run the software on one of my external SCSI drives but I'd need to install an OS first. Hopefully it's not an extensions conflict. Those can be a PITA to resolve. Funny thing is the SCSI Probe software works perfectly and I can mount any external...
  19. Concorde1993

    Adaptec 2906: (-69) Bus Error When Accessing PowerDomain Control Utility

    Well they should be compatible - they were both included in the Adaptec 2906 install disc for the PowerMac series. Anyway, I've uploaded the readme for the PowerDomain utility. On Page 19 it shows under "About PowerDomain" the 2906 card as being compatible hardware for the PowerDomain...
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