Problem: Panasonic LF/RF 7010 optical & W95
Posted on 1997-12-14
I had a few problems with getting this drive going again, but I finally managed by cleaning the lens; thanks to those who suggested that. Now it works perfectly in DOS, using an Adaptec 1542C, aspi4dos.sys, and uni_asp.sys, a CorelScsi driver. However Win 95 is a different story; I seem to get random crashes, sometimes a fatal error, at other times it will just freeze and fill half the screen with symbols, or occasionally a single horizontal line near the top of the screen, which made me think it might be a display
I've tried disabling hardware acceleration and other settings on the card, and this seems to help as does running with a VGA driver, but it still crashes near the end of large backups. I've noticed that the throughput seems much higher than in DOS, so I also tried slowing the
disk down by using the troubleshooting settings on the "performance" tab. Again, disabling sync. buffer, and write cacheing also seems to help slightly, and finally, I've tried disabling sync transfers in the settings tab of the native win 95 driver. Icidentally, the crashes always result in a scrambled File system on the disk, with lost chains, crosslinked entries, etc.
Another, possibly related problem is that I have a Wangtek 5525 Tape drive that won't work on it's own in Win95 AND DOS, but will work when another SCSI device is in the chain. I'm sure that I've adjusted the terminations correctly in both instances; though the optical disk will work on its own, I still get the problems I mentioned above.
I have a Matrox Mystique, on a UM8810 board, latest bios with an AMD 5x86 and eide HD. The 7010 was manufactured in 92 and has the original bios
Anyone have any ideas? I've tried looking for drivers from Panasonic or Plasmon/Reflection, but have had no luck. Someone suggested an Optisys driver, but $495 is beyond my pocket.