MSI 925X Neo Platinum User Manual page 44

This section describes configuring the PCI bus system and PnP (Plug & Play) feature.
PCI, or Peripheral Component Interconnect, is a system which allows I/O devices to
operate at speeds nearing the speed the CPU itself uses when communicating with
its special components. This section covers some very technical items and it is
strongly recommended that only experienced users should make any changes to the
default settings.
Init Display First
This setting specifies which VGA card is your primary graphics adapter. Setting
options are:
[PCI Ex] The system initializes the PCI Express graphic first. If a PCI Ex-
press graphic card is not available, it will initialize the PCI graphic
card.
[PCI Slot] The system initializes the PCI Graphic card first. If a PCI Graphic
card is not available, it will initialize the PCI Express graphic.
PCI Slot1 IRQ, PCI Slot2 IRQ, PCI Slot3 IRQ
These items specify the IRQ line for each PCI slot. Setting options: [3], [4], [5], [7], [9],
[10], [11], [12], [14], [15], [Auto]. Selecting [Auto] allows BIOS to automatically deter-
mine the IRQ line for each PCI slot.
**PCI Express relative items**
Maximum Payload Size
This item allows you to set the maximum TLP (transaction layer packet) payload size
for the PCI Express devices. Setting options: [128], [256], [512], [1024], [2048], [4096].
MSI Reminds You...
IRQ (Interrupt Request) lines are system resources allocated to I/O
devices. When an I/O device needs to gain the attention of the operating
system, it signals this by causing an IRQ to occur. After receiving the
signal, when the operating system is ready, the system will interrupt itself
and perform the service required by the I/O device.
PNP/PCI Configurations
BIOS Setup
E-3-9