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 performance.
Therefore, the description may be slightly different from the latest
BIOS and should be held for reference only.
2. While booting up, the BIOS version is shown in the 1st line ap-
pearing after the memory counting. It is usually in the format:
example: W7125NMS V1.0B32 061704
where:
1st digit refers to BIOS maker as A=AMI(R); W=AWARD(R)
2nd - 5th digit refers to the model number.
6th digit refers to nVIDIA chipset.
7th - 8th digit refers to the customer, MS=all standard customers.
V1.0 refers to the BIOS version.
061704 refers to the date this BIOS is released. 
						

							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 described in this chapter are
under continuous update for better system performance. Therefore,
the description may be slightly different from the latest BIOS and
should be held for reference only.
Selecting the First Boot Device
You are allowed to select the 1st boot device without entering the BIOS setup utility
by pressing . When the same message as listed above appears on the screen,
press  to trigger the boot menu.
The POST messages might pass by too quickly for you to respond in time. If so,
restart the system and press  after around 2 or 3 seconds to activate the boot
menu similar to the following.
The boot menu will list all the bootable devices. Select the one you want to boot from
by using arrow keys, then press . The system will boot from the selected
device.  The selection will not make changes to the settings in the BIOS setup utility,
so next time when you power on the system, it will still use the original first boot
device to boot up.
Select First Boot Device
Floppy : 1st Floppy
IDE-0 : IBM-DTLA-307038
CDROM : ATAPI CD-ROM DRIVE 40X M
[Up/Dn] Select [RETURN] Boot [ESC] cancel 
						

							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 field. A sub-
menu contains additional options for a field
parameter. You can use arrow keys  ( ↑↓ ) to
highlight the field and press  to call up
the sub-menu. Then you can use the control
keys to enter values and  move from field to
field within a sub-menu. If you want to return
to the main menu, just press the .
General Help 
The BIOS setup program provides a General  Help screen. You can call up this screen
from any menu by simply pressing . The Help screen lists the appropriate keys
to use and the possible selections for the highlighted item.  Press  to exit the
Help screen.
 Move to the previous item
 Move to the next item
 Move to the item in the left hand
 Move to the item in the right hand
Select the item
Jumps to the Exit menu or returns to the main menu from a
submenu
Increase the numeric value or make changes
Decrease the numeric value or make changes
Previous Values
Load Optimized Defaults
Save all the CMOS changes and exit 
						

							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 power management.
PNP/PCI Configurations
This entry appears if your system supports PnP/PCI.
H/W Monitor
Use this menu to specify your settings for hardware.
Cell Menu
Use this menu to specify your settings for CPU/AGP frequency/voltage control and
overclocking.Once you enter Phoenix-Award
® BIOS CMOS Setup Utility, the Main Menu will
appear on the screen. The Main Menu allows you to select from twelve setup func-
tions and two exit choices. Use arrow keys to select among the items and press
 to accept or enter the sub-menu. 
						

							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 Master/Slave
Press PgUp/ or PgDn/ to select [Manual], [None] or [Auto] type.  Note that the
specifications of your drive must match with the drive table.  The hard disk will not
work properly if you enter improper information for this category.  If your hard disk
drive type is not matched or listed, you can use [Manual] to define your own drive
type manually.
If you select [Manual], related information is asked to be entered to the following
items.  Enter the information directly from the keyboard.  This information should be
provided in the documentation from your hard disk vendor or the system manufacturer.
Access ModeThe settings are CHS, LBA, Large, Auto.
CapacityThe formatted size of the storage device.
CylinderNumber of cylinders. The items in Standard CMOS Features Menu includes some basic setup items.
Use the arrow keys to highlight the item and then use the  or  keys to
select the value you want in each item. 
						

							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 Errors]The system doesn’t stop for any detected error.
[All, But Keyboard] The system doesn’t stop for a keyboard error.
[All, But Diskette]The system doesn’t stop for a disk error.
[All, But Disk/Key]The system doesn’t stop for either a disk or a key-
board error.
System Information
Press  to enter the sub-menu and the following screen appears:
CPU Type/BIOS Version/System Memory/Total  Memory
The items show the CPU type, BIOS version and memory status of your
system (read only). 
						

							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 (Advanced Programmable Interrupt
Controller). Due to compliance with PC2001 design guide, the system is able to run in
APIC mode. Enabling APIC mode will expand available IRQ resources for the system.
Settings: [Enabled], [Disabled].
MPS Table Version
This field allows you to select which MPS (Multi-Processor Specification) version to
be used for the operating system. You need to select the MPS version supported by
your operating system. To find out which version to use, consult the vendor of your
operating system. Settings: [1.4], [1.1].
Full Screen LOGO Display
This item enables you to show the company logo on the bootup screen. Settings are:
[Enabled]Shows a still image (logo) on the full screen at boot.
[Disabled]Shows the POST messages at boot. 
						

							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 priority list. Boot Sequence
Press  to enter the sub-menu and the following screen appears: