Planar Dome Md5/PCI, Installation Manual

Page: 131 / 150

Installing the Md5/PCI Board in a Digital UNIX Workstation 119
Supporting VGA with the Md5/PCI board
The 32-bit slots on the Digital UNIX workstation do not
support the Md5/PCI board’s VGA, so you must install
the Md5/PCI board in a 64-bit slot if you are using it to
support VGA. Unfortunately, the 64-bit slots on the 500au
workstation (and possibly on other Digital UNIX work-
stations) are not fully PCI compliant. To use the Md5/PCI
board in a 64-bit slot, you must first use a Digital display
board to set the 64-bit slots to accept non-Digital PCI
boards.
To set the 64-bit slot to accept a DOME PCI board
1. Install the Digital display board in one of the
64-bit slots.
2. Turn on the workstation.
The boot prompt appears on the VGA console.
3. Type this command at the boot prompt:
>>>set pci_device_override 2309105d
This command allows the DOME display board to be
recognized in a 64-bit slot.
4. Turn off the power to your workstation.
5. Remove the Digital board from the 64-bit slot.
6. Enable VGA mode on the Md5/PCI board by following
the instructions in “To enable VGA mode” on page 121.