Simon_Carr
Well-known member
Hello Again,
Having got my maxxed-out Centris back up and running a couple of months ago, I've suddenly hit a problem. I was installing Mathematica on the Centris a few weeks back, when suddenly it all went awry; I don't think it was anything to do with the installation of Mathematica, but after doing that the Centris stopped working properly. In a nutshell, here is what has happened:
Any suggestions regarding what I can try next? I will take the logic board out of the computer and give it a thorough check and (another) clean, but does anyone have any ideas where I should be looking? It cannot be a major problem, as the Centris seems to nearly get there, and when I boot from floppy the Centris passes all the initial checks that allow a happy mac to show, but I'm completely stumped!
Cheers,
Simon
Having got my maxxed-out Centris back up and running a couple of months ago, I've suddenly hit a problem. I was installing Mathematica on the Centris a few weeks back, when suddenly it all went awry; I don't think it was anything to do with the installation of Mathematica, but after doing that the Centris stopped working properly. In a nutshell, here is what has happened:
- The Centris started having real problems reading the SCSI2SD which is the main drive for the computer;
- I tried a whole range of different things relating to the SCSI2SD, but started getting system faults and errors, especially with regard to reading from any SCSI device; This culminated in the computer failing to start up at all. I cant remember whether I got a sad mac or bomb at start up, unfortunately.
- I removed the SCSI2SD completely, wiped the SD card and have been trying to do a re-install of the system 7.5.3 software, both from CD-ROM and Floppy Disks; Despite repeated attempts, the computer kept losing sight of the SCSI2SD and failing to install the system software. The computer sometimes saw the SCSI2SD, and would ask to initialise, but this would always fail after a short time. After one or two efforts, as well as not seeing the SCSI2SD, the Centris no longer read or recognised the CD drive
- Thinking it might be an issue with the SCSI2SD, I tried to install using a blank (but known to be working) Apple Hard Disk, from floppy disks. Still no joy;
- I have then just tried to get the computer to start up fro the Disk Tools 1 floppy. The computer starts up, and I get a happy mac icon, and the system boots up to the desktop, with the menu bar across the top of the screen. However, I don't get any disks appearing on the desktop (not even the floppy disk that is being used to drive the system), and the pointer just sits as the wristwatch, which is initially spinning (accompanied by sound of the floppy disk being read), but then freezes, and there is no noise from the floppy disk. At this point the computer hangs up; I can still move the pointer around the screen, but the computer is no longer responsive.
- I have repeatedly tried this startup, with the same result, even after leaving the computer for over an hour to see if it can get over the hang-up, but with no joy.
Any suggestions regarding what I can try next? I will take the logic board out of the computer and give it a thorough check and (another) clean, but does anyone have any ideas where I should be looking? It cannot be a major problem, as the Centris seems to nearly get there, and when I boot from floppy the Centris passes all the initial checks that allow a happy mac to show, but I'm completely stumped!
Cheers,
Simon