Plug and play o/s, Pci latency timer, Allocate irq to pci vga – Kontron CP305 BIOS User Manual

Page 58: Pci latency timer allocate irq to pci vga, Pci/pnp setup cp305 bios

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PCI/PnP Setup

CP305 BIOS

Page 48

ID 1035-8356, Rev. 1.0

P R E L I M I N A R Y

Plug and Play O/S

This function is used to modify the settings for Plug and Play operating system support.

Optimal and Fail-Safe default settings: No

PCI Latency Timer

This function is used to specify the PCI Latency Timer. It sets the latency of all PCI devices on
the PCI bus.

Optimal and Fail-Safe default settings: 64

Allocate IRQ to PCI VGA

This function is used to allow or restrict the system from giving the VGA adapter card an inter-
rupt address.

Optimal and Fail-Safe default settings: Yes

SETTING

DESCRIPTION

No

Use this setting to allow the BIOS to configure all the devices in the system if the operating
systems do not meet the Plug and Play specifications.

Yes

Use this setting to allow the operating system to change the interrupt, I/O, and DMA set-
tings if the system is running Plug and Play aware operating systems.

SETTING

DESCRIPTION

32
64
96
128
160
192
224
248

Use this setting to set the number of PCI clocks for the latency timer.

SETTING

DESCRIPTION

Yes

Use this setting to allow the allocation of an IRQ to a VGA adapter card that uses the PCI
local bus.

No

Use this setting to prevent the allocation of an IRQ to a VGA adapter card that uses the PCI
local bus.

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