MSI K8n Neo4 Manual

2-27 Hardware SetupPCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hard-
ware lines over which devices can send interrupt signals to the microprocessor. The
PCI IRQ pins are typically connected to the PCI bus INT A# ~ INT D# pins as follows:
Order 1Order 2Order 3Order 4
PCI Slot 1INT A#INT B#INT C#INT D#
PCI Slot 2INT B#INT C#INT D#INT A#
PCI Slot 3INT C#INT D#INT A#INT B#
PCI Slot 4INT D#INT A#INT B#INT C# 

3-1 BIOS Setup
Chapter 3. BIOS Setup
This chapter provides information on the BIOS Setup program and allows
you to configure  the system for optimum use.
You may need to run the Setup program when:
”An error message appears on the screen during the system
booting up, and requests you to run SETUP.
”You want to change the default settings for customized
features.
BIOS Setup
MSI Reminds You...
1. The items under each BIOS category described in this chapter are
under continuous update for better system...

3-2
MS-7125 ATX Mainboard
Entering Setup
Power on the computer and the system will start POST (Power On Self Test) process.
When the message below appears on the screen, press  key to enter Setup.
Press DEL to enter SETUP
If the message disappears before you respond and you still wish to enter Setup,
restart the system by turning it OFF and On or pressing the RESET button. You may
also restart the system by simultaneously pressing , , and  keys.
MSI Reminds You...
The items under each BIOS category...

3-3 BIOS Setup
Control Keys
Getting Help
After entering the Setup menu, the first menu you will see is the Main Menu.
Main Menu
The main menu lists the setup functions you can make changes to. You can use
the arrow keys ( ↑↓ ) to select the item. The on-line description of the highlighted
setup function is displayed at the bottom of the screen.
Sub-Menu
If you find a right pointer symbol (as shown in the right  view) appears to the left
of certain fields that means a sub-menu can be launched from this...

3-4
MS-7125 ATX Mainboard
The Main Menu
Standard CMOS Features
Use this menu for basic system configurations, such as time, date etc.
Advanced BIOS Features
Use this menu to setup the items of AWARD
® special enhanced features.
Advanced Chipset Features
Use this menu to change the values in the chipset registers and optimize your system’s
performance.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
Power Management Setup
Use this menu to specify your settings for...

3-5 BIOS Setup
Load Optimized Defaults
Use this menu to load the BIOS values for the best system performance, but the
system stability may be affected.
BIOS Setting Password
Use this menu to set the password for BIOS.
Save & Exit Setup
Save changes to CMOS and exit setup.
Exit Without Saving
Abandon all changes and exit setup. 

3-6
MS-7125 ATX Mainboard
Standard CMOS Features
Date
This allows you to set the system to the date that you want (usually the current date).
 The format is   .
dayDay of the week, from Sun to Sat, determined by
BIOS.  Read-only.
monthThe month from Jan. through Dec.
dateThe date from 1 to 31 can be keyed by numeric
function keys.
yearThe year can be adjusted by users.
Time
This allows you to set the system time that you want (usually the current time).  The
time format is   .
IDE Primary/Secondary...

3-7 BIOS Setup
HeadNumber of heads.
PrecompWrite precompensation.
Landing ZoneCylinder location of the landing zone.
SectorNumber of sectors.
Drive A
This item allows you to set the type of floppy drive installed. Available options: [None],
[360K, 5.25 in.], [1.2M, 5.25 in.], [720K, 3.5 in.], [1.44M, 3.5 in.], [2.88M, 3.5 in.].
Halt  On
The setting determines whether the system will stop if an error is detected at boot.
Available options are:
[All Errors]The system stops when any error is detected.
[No...

3-8
MS-7125 ATX Mainboard
Advanced BIOS Features
Quick Boot
Setting the item to [Enabled] allows the system to boot within 5 seconds since it will
skip some check items.  Available options: [Enabled], [Disabled].
Boot To OS/2
This allows you to run the OS/2
® operating system with DRAM larger than 64MB.
When you choose [No], you cannot run  the OS/2® operating system with DRAM
larger than 64MB.  But it is possible if you choose [Yes].
IOAPIC  Function
This field is used to enable or disable the APIC...

3-9 BIOS Setup
1st/2nd/3rd Boot Device
The items allow you to set the sequence of boot devices where BIOS attempts to load
the disk operating system.
Boot Other Device
Setting the option to [Enabled] allows the system to try to boot from other device if the
system fails to boot from the 1st/2nd/3rd boot device.
Hard Disk Boot Priority
Press  to enter the sub-menu. Then you may use the arrow keys ( ↑↓ ) to
select the desired device, then press ,  or ,  key to
move it up/down in this hard disk boot...