gwyn@smoke.BRL.MIL (Doug Gwyn) (07/26/90)
In article <43316@apple.Apple.COM> dlyons@Apple.COM (David A. Lyons) writes: >(By the way, has anybody else had trouble using the high-speed SCSI card >after installing the special OS and drivers that come with it, over your >existing 5.0.2 installation? My system was hanging about 2/3 of the way >through my boot, apparently in the middle of a SCSI read. I solved the >problem temporarily by turning off the DMA switch on the card, but that >shouldn't be necessary--I don't have a large memory card or any other DMA >peripherals in that particular system.) The point at which the boot was "hanging" corresponds to the place I had problems when I had a DMA-incompatible memory card configuration (2MB OctoRAM using 256K SIMMs); I think that's the first spot where the GS/OS (potentially DMA) driver is used instead of slot firmware. If you have a TWGS it needs a PAL upgrade in order to work with the new SCSI card in DMA mode.
dlyons@APPLE.COM (David A. Lyons) (07/26/90)
Unfortunately, I have no TWGS in my system either...my hang remains a mystery for now.