MrFahrenheit
Well-known member
I’ve been having a heck of a time trying to copy files from my backup media (9.1GB magneto optical disks) onto an internal SCSI hard disk.
The external MO drive is a Sony 5.25” drive, which has functioned just fine up until now. I have ruled out the drive because, I have two and I’ve tried both. Same problems.
The internal hard drive, I’ve also changed out once. First was a Hitachi 34GB u320 drive (with the proper adapter and terminators). That drive decided to stop working so I changed it for a Fujitsu 34GB u320 drive.
I’m running Mac OS 7.6.1 on an overclocked and recapped Mac LC475, with a real 68040 CPU rated for 40mhz. Heat sink applied.
I’ve had two different RAM SIMMs installed: a 128MB and a 16MB when I was needing to constantly turn it off and on again.
I have the MO disks formatted for HFS and I’ve copied CD ISO files to them. I’m using Toast CD 4.1.3 to mount them on the desktop as a virtual disk, and I’m copying the contents over to the internal SCSI drive.
Before you ask, external device is SCSI ID 2, internal drive is 0. Termination exists on the internal bus at the SCA80 to 50 converter and I have a termination block on the external MO drive. No other devices.
I’ve changed the terminator and the external and internal drives and the SCSI cables.
I get random freezes, but only during Finder file copies. It will run for hours on end without issue. Randomly, it will freeze at some point during a copy and I have to turn the machine off and on. The mouse pointer moves but nothing else is happening.
The board was nice and clean prior to recapping and it’s nice and clean after. It has worked flawlessly for years until this event.
The last freeze caused the partition I was copying to not to mount on reboot. I got an error type -127 (see screen).
I tried deleting and recreating the partition with FWB HDT 3.0.2 but it crashes to the desktop.
Any suggestions ?
The external MO drive is a Sony 5.25” drive, which has functioned just fine up until now. I have ruled out the drive because, I have two and I’ve tried both. Same problems.
The internal hard drive, I’ve also changed out once. First was a Hitachi 34GB u320 drive (with the proper adapter and terminators). That drive decided to stop working so I changed it for a Fujitsu 34GB u320 drive.
I’m running Mac OS 7.6.1 on an overclocked and recapped Mac LC475, with a real 68040 CPU rated for 40mhz. Heat sink applied.
I’ve had two different RAM SIMMs installed: a 128MB and a 16MB when I was needing to constantly turn it off and on again.
I have the MO disks formatted for HFS and I’ve copied CD ISO files to them. I’m using Toast CD 4.1.3 to mount them on the desktop as a virtual disk, and I’m copying the contents over to the internal SCSI drive.
Before you ask, external device is SCSI ID 2, internal drive is 0. Termination exists on the internal bus at the SCA80 to 50 converter and I have a termination block on the external MO drive. No other devices.
I’ve changed the terminator and the external and internal drives and the SCSI cables.
I get random freezes, but only during Finder file copies. It will run for hours on end without issue. Randomly, it will freeze at some point during a copy and I have to turn the machine off and on. The mouse pointer moves but nothing else is happening.
The board was nice and clean prior to recapping and it’s nice and clean after. It has worked flawlessly for years until this event.
The last freeze caused the partition I was copying to not to mount on reboot. I got an error type -127 (see screen).
I tried deleting and recreating the partition with FWB HDT 3.0.2 but it crashes to the desktop.
Any suggestions ?