Sonnet Technologies Crescendo_NuBus Processor Upgrade Card - Manual (Page 89)

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Problem: Computer has blank screen and no tone.
Possible
Solutions:
1) The Crescendo card and/or video adapter board may
be improperly installed. Unplug the Crescendo from
the PDS slot (and if applicable, video adapter board
from middle NuBus slot) and reseat them in their
slots.
2) If installed, remove the Level 2 cache card installed in
the Level 2 Cache Card Slot.
3) Zap the PRAM (an area of the Mac’s memory that
stores such information as preference settings). Restart
your Mac and hold down the Command-Option-P-R
keys until the computer chimes three times. After the
computer finishes booting, open the Date & Time
control panel from the Control Panels Folder (located
inside the Systems Folder) and reset the date and time.
You may also want to reset your preference settings
for the Mouse and Keyboard control panels.
Problem: You have a flashing disk icon.
Possible
Solutions:
1) Are you trying to boot from a drive connected to an
ATTO or Adaptec SCSI accelerator card? If so, they are
not compatible with the Crescendo card. Hold down
the Command-Option-Shift-Delete keys to boot from
the internal drive.
2) Check internal and external SCSI cable connections.
Problem: Computer does not seem to run any faster.
Possible
Solutions:
Rebuild the Desktop file (an invisible resource file where
the computer stores important system information).
Restart your computer and hold down the Command-
Option keys until the Desktop rebuild dialog box
appears; click ‘OK’.
Troubleshooting Guide