User`s manual

Chapter 7: BIOS
7-15
SATA RAID Option ROM/UEFI Driver
Select Enabled to boot the system from a SATA RAID device or a UEFI
(Unifi ed Extensible Firmware Interface) device. The options are Enabled or
Disabled.
Port 0~5 Hot Plug
Select Enabled to enable hot-plug support for a port specifi ed by the user.
The options are Enabled and Disabled.
PCIe/PCI/PnP Confi guration
This submenu allows the user to confi gure the following PCIe/PCI/PnP settings.
Launch Storage OpROM Policy
This feature selects the Storage Option ROM to be used to bootup the system
from a storage device when there are multiple Storage Option ROMs available.
The options are UEFI Only and Legacy Only.
PCI Latency Timer
Use this feature to set the latency timer of each PCI device installed on a PCI bus.
Select 64 to set the PCI latency to 64 PCI clock cycles. The options are 32 PCI
Bus Clock, 64 PCI Bus Clock, 96 PCI Bus Clock, 128 PCI Bus Clock, 160 PCI Bus
Clock, 192 PCI Bus Clock, 224 PCI Bus Clock, and 248 PCI Bus Clock.
PERR# Generation
Select Enabled to allow a PCI device to generate a PERR number for a PCI Bus
Signal Error Event. The options are Enabled and Disabled.
SERR# Generation
Select Enabled to allow a PCI device to generate a SERR number for a PCI Bus
Signal Error Event. The options are Enabled and Disabled.
Maximum Payload
Select Auto to allow the system BIOS to automatically set the maximum payload
value for a PCI-E device to enhance system performance. The options are Auto,
128 Bytes and 256 Bytes.
Maximum Read Request
Select Auto to allow the system BIOS to automatically set the maximum read request
size for a PCI-E device to enhance system performance. The options are Auto, 128
Bytes, 256 Bytes, 512 Bytes, 1024 Bytes, 2048 Bytes, and 4096 Bytes.