MSI K9a2 Cff Manual

2-18MS-7388 MainboardJumpers
Clear CMOS Jumper: JBAT1
There is a CMOS RAM onboard that has a power supply from an external battery to
keep the data of system configuration. With the CMOS RAM, the system can auto-
matically boot OS every time it is turned on. If you want to clear the system configuration,
set the jumper to clear data.Important
You can clear CMOS by shorting 2-3 pin while the system is off. Then return
to 1-2 pin position. Avoid clearing the CMOS while the system is on; it will
damage the...

2-19Hardware SetupSlots
PCI (Peripheral Component Interconnect) Express Slot
The PCI Express slot supports the PCI Express interface expansion card.PCI Express x1 SlotImportant
The mainboard supports CrossFire technology with two PCI Express x16
slots.Mazarine PCI Express x16 Slot  (PCI_EX1)
supports up to PCI Express 2.0x16 speedBlue PCI Express x 16 Slot  (PCI_EX2)
supports up to PCI Express 2.0x8 speed 

2-20MS-7388 Mainboard
ATi CrossFire (Multi-GPU) Technology
ATi CrossFire (Multi-GPU) technology is an exciting new technology developed by ATI
that allows the power of multiple Graphics. CrossFire requires a CrossFire Edition
graphics card and a compatible standard Radeon (CrossFire Ready) graphics card
from the same series. To utilize this technology, always install the CrossFire Edition
graphics card in the Master PCIE 2.0X16 (PCI_EX1) slot and install the CrossFire
Ready graphics card in the Slave...

2-21Hardware Setup3.When all of the hardware and software has been properly set up and installed,
reboot the system. After entering the O.S., click the “Catalyst™ Control Center”
icon      on the desktop. There is a setting in the Catalyst™ Control Center that needs
to be enabled for CrossFire™ to operate. The following aspect appears in Catalyst™
Control Center:Important
A CrossFireX™ system has four possible display modes:
• SuperTiling
• Scissor Mode
• Alternate Frame Rendering
• Super Anti-aliasing....

2-22MS-7388 Mainboard32-bit PCI Slot PCI (Peripheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply with PCI specifications.
PCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines
over which devices can send interrupt signals to the microprocessor. The PCI IRQ
pins are typically connected to the PCI bus pins as follows:Order 1Order 2Order 3Order 4
PCI Slot 1INT A#INT B#INT...

BIOS Setup
3-1Chapter 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:
²An error message appears on the screen during the
system booting up, and requests you to run SETUP.
²You want to change the default settings for cus-
tomized features. 

MS-7388 Mainboard
3-2Entering SetupImportant
1.The items under each BIOS category described in this chapter are under
continuous update for better system performance. Therefore, the descrip-
tion may be slightly different from the latest BIOS and should be held for
reference only.
2.Upon boot-up, the 1st line appearing after the memory count is the BIOS
version. It is usually in the format:
A7388AMS V1.0 083007 where:
1st digit refers to BIOS maker as A = AMI, W = AWARD, and P =
PHOENIX.
2nd - 5th digit...

BIOS Setup
3-3 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...

MS-7388 Mainboard
3-4 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 AMI®
 special enhanced features. 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
This entry shows your PC health status....

BIOS Setup
3-5 Load Optimized Defaults
Use this menu to load the default values set by the mainboard manufacturer specifi-
cally for optimal performance of the mainboard. 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.