HP Unified Extensible Firmware Interface - Manual (Page 97)

Figure 88 Advanced Options — Consistent Device Naming screen
Setting PCI Express 64-Bit BAR Support
Force PCIe resources to use 32–bit MMIO addressing. Disabling 64–bit BAR support might be
necessary for certain legacy option card device to function properly when Boot Mode is set to
“Legacy Boot.”
To set PCI express 64-bit BAR support:
1.
From the System Utilities screen, select System Configuration
→BIOS/Platform Configuration
(RBSU)
→Advanced Options→Advanced System ROM Options→PCI Express 64-Bit BAR Support
and press Enter.
2. Select one of the following options:
•
Enabled (default)
•
Disabled
3. Press F10 to save your selection.
Accessing the BIOS/Platform Configuration (RBSU) menu 97