Apple PC Compatibility Card - Manual (Page 294)

294 Appendix D
Memory aperture test fails, diagnostics program locks, or the computer restarts during
aperture test.
If you see a message that the memory aperture location is conflicting with
your system memory, restart the Installer program as follows:
C: <return>
CD\MACH64 <return>
INSTALL <return>
Enable Memory Aperture, selecting a location above but not overlapping
System Memory (S), BIOS (B), or Reserved (R) locations.
The resolution I want is not available (dimmed).
The BIOS has been instructed that the mode is not available. If you’re sure
your monitor supports the resolution, run the Installer program again and use
the custom configuration option.
A menu item is not available (dimmed).
The mode or test is not available for the current configuration. For example,
aperture tests are not available if the aperture is turned off. CRT mode and
pixel depth are determined by the current installation, DAC type, memory
size, and memory type.
A FIFO test error occurred.
The effects of a bad command FIFO should be visible (for example, the
display may be blank or there may be “garbage” on the screen).
A quick memory test error occurred.
Run the Detailed RAM Test to confirm the error and identify the address of
the error.
A detailed memory test error occurred.
Run the Detailed RAM Test several times to confirm the error. Take note of
any messages and error codes that are displayed.