User`s guide

T-MOPSlcdSA User's Guide
Appendix B: BIOS Operation 50
50
19.5 PCI PnP Menu
All entries in this part of the BIOS setup utility are vital to your system. Change settings only if you
are sure of what you are doing. Some changes may not be suitable for your complete system and
may lead to unwanted system behavior.
Feature Option Description
Advanced PCI/PnP Settings
Plug & Play OS(*) No
Yes
Selects a Plug & Play operating system:
No: Lets the BIOS configure all the devices in the system.
Yes: Lets the operating system configure plug & play devices.
PCI Latency Timer 32, 64, 96, 128,
160, 192, 224,
248
Sets value of latency-timer register for the PCI device
(in units of PCI clocks).
Palette Snooping Disabled
Enabled
Disabled/Enabled: Switches palette snooping feature off or on.
When enabled, the PCI graphic adapter is informed about an ISA or a
none PnP-PCI graphic adapter. Always check graphic adapter card
manual before setting this feature.
PCI IDE BusMaster Disabled
Enabled
Selects PCI IDE bus mastering feature:
Disabled: Prevents PCI IDE bus mastering.
Enabled: Allows PCI IDE bus mastering.
IRQ 5(**) Reserved
Available
Selects the use of the IRQ resource:
Available: this IRQ is available for PCI/PnP devices.
Reserved: this IRQ is reserved for use of legacy ISA devices.
IRQ9 Reserved
Available
See above.
IRQ10 Reserved
Available
See above.
IRQ11 Reserved
Available
See above.
IRQ14 Reserved
Available
See above.
IRQ15 Reserved
Available
See above.
Notes:
In the Option column, bold shows default settings.
(*) Set this parameter to “no” if you are not sure whether the OS you use meets the PnP
specification.
(**) Up to BIOS version PEXTR112 the default setting was Reserved.