MSI Kt4avl Manual

							3-25
BIOS Setup
IR Pin Select
Set to IRRX/IRTX when using an internal IR module connected to the IR
header.  Set to SINB/SOUTB. when connecting an IR adapter to COM B.
Parallel Port
This field specifies the base I/O port address of the onboard parallel port.
Selecting Auto allows AMIBIOS to automatically determine the correct base
I/O port address.  Settings: Auto, 378, 278, Disabled.
Port Mode
This item selects the operation mode for the onboard parallel port: ECP,
Normal, Bi-Dir or EPP.
EPP Version
The item selects the EPP version used by the parallel port if the port is set
to EPP mode.  Settings: 1.7, 1.9.
Port IRQ
When OnBoard Parallel Port is set to Auto, the item shows Auto indicat-
ing that BIOS determines the IRQ for the parallel port automatically.
Port DMA
This feature needs to be configured only when Parallel Port Mode is set
to the ECP mode.  When Parallel Port is set to Auto, the field will show
Auto indicating that BIOS automatically determines the DMA channel
for the parallel port.
OnChip IDE Controller
This setting controls the onboard IDE controller.  Setting options: Disabled,
Primary, Secondary, Both.
OnBoard LAN
This setting controls the onboard LAN controller.  Setting options: Disabled,
Enabled.
OnBoard LAN P.M.E.
This feature allows the onboard LAN to be awakened from the power
saving modes through any event on PME (Power Management Event).
Setting options: Disabled, Enabled. 
						

							3-26
 MS-6712 ATX Mainboard
AC’97 Audio
Auto allows the mainboard to detect whether an audio device is used.  If an
audio device is detected, the onboard AC’97 (Audio Codec’97) controller
will be enabled; if not, it is disabled.  Disable the controller if you want to use
other controller cards to connect an audio device.  Settings: Auto, Disabled.
MC’97 Modem
Auto allows the mainboard to detect whether a modem is used.  If a modem is
detected, the onboard AC’97 modem controller will be enabled; if not, it is
disabled.  Disable the controller if you want to use other controller cards to
connect a modem.  Settings: Auto, Disabled.
OnChip USB Controller
This setting is used to enable/disable the onboard USB ports.  Setting options:
Disabled, 2 USB Ports, 4 USB Ports, 6 USB Ports.
USB Legacy Support
Set to All Device if you need to use any USB device in the operating
system that does not support or have any USB driver installed, such as
DOS and SCO Unix.  Set to No Mice only if you want to use any USB
device other than the USB mouse.
Port 64/60 Emulation
This field controls the USB Port 64/60 Emulation function. When the
function is enabled, the USB keyboard is allowed to type some special
combination keys. Setting options: Disabled, Enabled. 
						

							3-27
BIOS Setup
PC Health Status
This section shows the status of your CPU, fan, overall system status, etc.
Monitor function is available only if there is hardware monitoring mechanism
onboard.
Chassis Intrusion
The field enables or disables the feature of recording the chassis intrusion
status and issuing a warning message if the chassis is once opened.  To clear
the warning message, set the field to Reset.  The setting of the field will auto-
matically return to Enabled later.  Settings: Enabled, Reset, Disabled.
CPU Fan Detection
When enabled, the system will automatically monitor the CPU fan during
boot-up.  If it detects that the CPU fan is not rotating, the system will show an
error message on the screen and halt the boot-up process.  The function is
built with CPU fan power connector (CFAN1) only and enables you to
protect the CPU form possible overheating problem.  If you don’t connect the
CPU fan to the CPU fan power connector, we recommend that you disable the
feature.  Settings: Enabled, Disabled.
CPU/System Temperature, CPU/System Fan Speed, Vcore, +5.0V,
+12.0V, -12.0V, -5.0V, Battery, +5V SB
These items display the current status of all of the monitored hardware de-
vices/components such as CPU voltages, temperatures and all fans’ speeds. 
						

							3-28
 MS-6712 ATX Mainboard
Use this menu to specify your settings for frequency/voltage control.
Spread Spectrum
When the motherboard’s clock generator pulses, the extreme values (spikes)
of the pulses creates EMI (Electromagnetic Interference).  The Spread Spec-
trum function reduces the EMI generated by modulating the pulses so that the
spikes of the pulses are reduced to flatter curves.  If you do not have any EMI
problem, leave the setting at Disabled for optimal system stability and
performance.  But if you are plagued by EMI, select one of the options for
EMI reduction.  Remember to disable Spread Spectrum if you are overclocking
because even a slight jitter can introduce a temporary boost in clockspeed
which may just cause your overclocked processor to lock up.  Available options:
+/-0.25%, +/-0.5%, +/-0.75%, Disabled.
CPU FSB Clock
This item allows you to select the CPU Front Side Bus clock frequency (in
MHz) and overclock the processor by adjusting the FSB clock to a higher
frequency. Select the number between 100~280 for needed frequency.
CPU Ratio/Vcore (V)
The settings are used to adjust the CPU clock multiplier (ratio) and CPU
corevoltage (Vcore). These settings offer users a tool to overclock the system.
Frequency/Voltage Control 
						

							3-29
BIOS Setup
MSI Reminds You...
Changing CPU Ratio/Vcore could result in the instability of the
system; therefore, it is NOT recommended to change the default
setting for long-term usage.
DDR Voltage (V)
Adjusting the DDR voltage can increase the DDR speed.  Any changes made
to this setting may cause a stability issue, so changing the DDR voltage for
long-term purpose is NOT recommended.
Termination Vol (V)
The settings are used to adjust the termination voltage. Setting options:
Auto, 1.27, 1.29.
AGP Voltage (V)
AGP voltage is adjustable in the field, allowing you to increase the perfor-
mance of your AGP display card when overclocking, but the stability may be
affected. Setting options: Auto, 1.6, 1.7, 1.8. 
						

							3-30
 MS-6712 ATX Mainboard
Set Supervisor/User Password
When you select this function, a message as below will appear on the screen:
Type the password, up to six characters in length, and press . The
password typed now will replace any previously set password from CMOS
memory. You will be prompted to confirm the password. Retype the pass-
word and press . You may also press  to abort the selection and
not enter a password.
To clear a set password, just press  when you are prompted to enter
the password. A message will show up confirming the password will be
disabled. Once the password is disabled, the system will boot and you can
enter Setup without entering any password.
When a password has been set, you will be prompted to enter  it every time
you try to enter Setup. This prevents an unauthorized person from changing
any part of your system configuration.
Additionally, when a password is enabled, you can also have AMIBIOS to
request a password each time the system is booted. This would prevent unau-
thorized use of your computer. The setting to determine when the password
prompt is required is the PASSWORD CHECK option of the ADVANCED
BIOS FEATURES menu. If the PASSWORD CHECK option is set to Always,
the password is required both at boot and at entry to Setup. If set to Setup,
password prompt only occurs when you try to enter Setup.
MSI Reminds You...
About Supervisor Password & User Password:
Supervisor password: Can enter and change the settings of
the setup menu.
User password:Can only enter but do not have the
right to change the settings of the setup
menu. 
						

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BIOS Setup
Load High Performance/BIOS Setup Defaults
The two options on the main menu allow users to restore all of the BIOS
settings to High Performance defaults or BIOS Setup defaults. The High Per-
formance Defaults are the values set by the mainboard manufacturer for the
best system performance but probably will cause a stability issue. The BIOS
Setup Defaults are the default values also set by the mainboard manufacturer
for stable performance of the mainboard.
When you select Load High Performance Defaults, a message as below appears:
Pressing ‘Enter’ loads the default BIOS values that enable the best system
performance but may lead to a stability issue.
When you select Load BIOS Setup Defaults, a message as below appears:
Pressing ‘Enter’ loads the default values that are factory settings for stable
system performance.
MSI Reminds You...
The option is for power or overclocking users only. Use of high
performance defaults will tighten most timings to increase the
system performance. Therefore, a high-end system configura-
tion is a must, which means you need high-quality VGA adapter,
RAM and so on. We don’t recommend that users should apply
the high performance defaults in their regular systems.
Otherwise, the system may become unstable or even crash. If the
system crashes or hangs after enabling the feature, please CLEAR
CMOS DATA to resolve the problem. For more information, re-
fer to “Clear CMOS Jumper:JBAT1” in Chapter 2. 
						

							A-1
Using 4- or 6-Channel Audio Function
Appendix: Using 4- or 6-Channel Audio
Function
The motherboard is equipped with Realtek ALC650 chip, which pro-
vides support for  6-channel audio output, including 2 Front, 2 Rear, 1 Center
and 1 Subwoofer channel.  ALC650 allows the board to attach 4 or 6 speakers
for better surround sound effect.  The section will tell you how to install and
use 4-/6-channel audio function on the board.
TOPICS
Installing the Audio Driver A-2
Using 4-/6-Channel Audio Function A-4
Testing the Connected Speakers A-14
Playing KaraOK A-16 
						

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 MS-6712 ATX Mainboard
Installing the Audio Driver
You need to install the driver for Realtek ALC650 chip to function properly
before you can get access to 4-/6-channel audio operations.  Follow the pro-
cedures described below to install the drivers for different operating systems.
Installation for Windows 98SE/ME/2000/XP
For Windows® 2000, you must install Windows® 2000 Service Pack2 or
later before installing the driver.
The following illustrations are based on Windows
® XP environment and
could look slightly different if you install the drivers in different operating
systems.
1.Insert the companion CD into the CD-ROM drive.  The setup screen
will automatically appear.
2.Click Avance ALC650 Sound Drivers.
Click here
MSI Reminds You...
The AC97 Audio Configurationsoftware utility is under con-
tinuous update to enhance audio applications. Hence, the program
screens shown here in this appendix may be slightly different from
the latest software utility and shall be held for reference only. 
						

							A-3
Using 4- or 6-Channel Audio Function
3.Click Next to start installing files into the system.
4.Click Finish to restart the system.
Click here
Click here
Select this
option