MSI Km4mv Manual

							3-8
 MS-6734 M-ATX Mainboard
CPU Internal Cache
The item allows you to turn on or off CPU’s internal (L1) cache. Settings: Enabled
and Disabled.
CPU L2 Cache ECC Checking
This setting allows you to enable or disable the ECC (Error-Correcting Code)
feature for error detection and correction when data passes through L2 (external)
cache memory. Setting options: Enabled, Disabled.
Swap Floppy
Setting to Enabled will swap floppy drives A: and B:.
Seek Floppy
Setting to Enabled will make BIOS seek floppy drive A: before booting the system.
Settings: Disabled, Enabled.
Boot Up NumLock Status
This setting is to set the Num Lock status when the system is powered on.
Setting to On will turn on the Num Lock key when the system is powered on.
Setting to Off will allow users to use the arrow keys on the numeric keypad.
Setting options: On, Off.
Typematic Rate Setting
When Disabled, the following two items (Typematic Rate and Typematic Delay)
are irrelevant. Keystrokes repeat at a rate determined by the keyboard controller
in your system. When Enabled, you can select a typematic rate and typematic
delay.
Typematic Delay (Msec)
This item allows you to select the delay between when the key was first pressed
and when the acceleration begins. Settings: 250, 500, 750 and 1000.
Typematic Rate (Chars/Sec)
After Typematic Rate Setting is enabled, this item allows you to set the rate
(characters/second) at which the keys are accelerated. Settings: 6, 8, 10, 12, 15,
20, 24 and 30.
Security Option
This specifies the type of BIOS password protection that is implemented. Settings
are described below:
Option Description
SetupThe password prompt appears only when end users try to run
Setup.
SystemA password prompt appears every time when the computer is
powered on or when end users try to run Setup. 
						

							3-9 BIOS Setup
APIC Mode
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 and 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.
HDD  S.M.A.R.T.  Capability
This allows you to activate the S.M.A.R.T. (Self-Monitoring Analysis & Reporting
Technology) capability for the hard disks. S.M.A.R.T is a utility that monitors your disk
status to predict hard disk failure. This gives you an opportunity to move data from a
hard disk that is going to fail to a safe place before the hard disk becomes offline.
Settings: Enabled and Disabled. 
						

							3-10
 MS-6734 M-ATX Mainboard
Advanced Chipset Features
DRAM Clock/Drive Control
Press  and the following sub-menu appears.
Current FSB / DRAM / DDR Frequency
These items show the current FSB/DRAM/DDR frequency. (read only)
DRAM Clock
This item is used to configure the clock frequency of the installed DRAM.
Settings: By SPD, 100MHz, 133MHz, 166MHz, 200MHz.
DRAM Timing
Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module.  Setting to Auto By SPD enables DRAM timings to be
determined by BIOS based on the configurations on the SPD.  Selecting Manual
allows users to configure the DRAM timings manually.  Options: Auto By SPD, Manual,
Turbo, Ultra.
MSI Reminds You...
Change these settings only if you are familiar with the chipset. 
						

							3-11 BIOS Setup
DRAM CAS Latency
When synchronous DRAM is installed, the number of clock cycles of CAS latency
depends on the DRAM timing. The settings are: 1.5, 2, 2.5, 3.
Bank Interleave
This field selects 2-bank or 4-bank interleave for the installed SDRAM.  Disable the
function if 16MB SDRAM is installed.  Settings: Disabled, 2 Bank and 4 Bank.
Precharge To Active (Trp)
This item controls the number of cycles for Row Address Strobe (RAS) to be allowed
to precharge.  If insufficient time is allowed for the RAS to accumulate its charge
before DRAM refresh, refreshing may be incomplete and DRAM may fail to retain
data.  This item applies only when synchronous DRAM is installed in the system.
Available settings: 2T, 3T.
Trans Non-DDR400/DDR400
This controls the timing delay (in clock cycles) before non-DDR400 and DDR400
starts a write command after receiving it.  Settings: 6T/8T, 7T/10T, 5T/6T, 8T/12T.
12T increases the delay time while 5T provides the least timing delay.   This option is
effective only if DDR400 is running.
Active to CMD (Trcd)
When DRAM is refreshed, both rows and columns are addressed separately.  This
setup item allows you to determine the timing of the transition from RAS (row address
strobe) to CAS (column address strobe).  The less the clock cycles, the faster the
DRAM performance.  Setting options: 2T, 3T.
DRAM Burst Length
This setting allows you to set the size of Burst-Length for DRAM.  Bursting feature is
a technique that DRAM itself predicts the address of the next memory location to be
accessed after the first address is accessed.  To use the feature, you need to define
the burst length, which is the actual length of burst plus the starting address and
allows internal address counter to properly generate the next memory location.  The
bigger the size, the faster the DRAM performance.  Settings: 4, 8.
DRAM Command Rate
This setting controls the SDRAM command rate.  Selecting 1T allows SDRAM signal
controller to run at 1T (T=clock cycles) rate.  Selecting 2T makes SDRAM signal
controller run at 2T rate.  1T is faster than 2T.  Setting options: 1T Command, 2T
Command.
DDR Voltage
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. 
						

							3-12
 MS-6734 M-ATX Mainboard
AGP & P2P Bridge Control
Press  and the following sub-menu appears.
AGP Aperture Size
This setting controls just how much system RAM can be allocated to AGP for video
purposes.  The aperture is a portion of the PCI memory address range dedicated to
graphics memory address space.  Host cycles that hit the aperture range are for-
warded to the AGP without any translation.  The option allows the selection of an
aperture size of 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, 256MB, 512MB and 1G.
AGP Mode
The item sets an appropriate mode for the installed AGP card.  Setting options: 1x, 2x,
4x.  Select 4x only if your AGP card supports it.
AGP Driving Control
This field is used to adjust the AGP driving force.  Selecting Manual allows you to
select an AGP driving force in AGP Driving Value.  It is strongly suggested to select
Auto to avoid causing any system error.
AGP Driving Value
This item specifies an AGP driving force.
AGP Fast Write
This option enables or disables the AGP Fast Write feature. The Fast Write technol-
ogy allows the CPU to write directly to the graphics card without passing anything
through the system memory and improves the AGP 4X speed. Select Enabled only
when your AGP card supports the feature.  Options: Disabled, Enabled.
AGP 3.0 Calibration cycle
This setting disables/enables the AGP auto calibration. Setting options: Disabled,
Enabled.
VGA Share Memory Size
The system shares memory to the onboard VGA card.  This setting controls the
exact memory size shared to the VGA card.  Setting options: 16MB, 32MB, 64MB.
CPU Disconnect Control
The item is to reduce the power consumption of the AMD K7 system.  When set to
Enabled, the processor is allowed to disconnect the s2k interface when the AMD k7
system is in some power saving states.  Options: Enabled, Disabled. 
						

							3-13 BIOS Setup
Integrated Peripherals
Onboard 1394 Chip
This setting is used to enable/disable the onboard IEEE 1394 controller.  Setting
options: Disabled, Enabled.
VIA OnChip IDE Device
Press  to enter the sub-menu and the following screen appears:
On-Chip Serial ATA
This setting is used to specify the SATA controller. Settings: Disable, Enabled.
IDE DMA Transfer Access
This item is used to enable or disable the DMA transfer function of the IDE Hard Drive.
The settings are: Enabled, Disabled.
OnChip IDE Channel 0/1
The integrated peripheral controller contains an IDE interface with support for two
IDE channels. Choose Enabled to activate each channel separately. Settings: Enabled,
Disabled. 
						

							3-14
 MS-6734 M-ATX Mainboard
Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for
each of the four IDE devices that the onboard IDE interface supports. Modes 0
through 4 provide successively increased performance. In Auto mode, the system
automatically determines the best mode for each device. The settings are: Auto,
Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.
Primary/Secondary Master/Slave UltraDMA
Ultra DMA/33 implementation is possible only if your IDE hard drive supports it and the
operating environment includes a DMA driver (Windows 95 OSR2 or a third-party IDE
bus master driver). If your hard drive and your system software both support Ultra
DMA/33, Ultra DMA/66 and Ultra DMA/100 select Auto to enable BIOS support. The
settings are: Auto, Disabled.
VIA OnChip PCI Device
Press  to enter the sub-menu and the following screen appears:
AC97 Audio
Auto allows the motherboard’s BIOS to detect whether you’re using any audio device.
If so, the onboard audio controller will be enabled.  If not, the onboard audio controller
will be disabled. If you want to use different controller cards to connect audio
connectors, set the field to Disabled. Setting options: Disabled, Auto.
OnChip LAN
Setting to [Auto] allows the BIOS to auto-detect the LAN controller and enable it.
Setting options: Auto and Disabled.
Onboard Lan Boot ROM
The item enables or disables the initialization of the onboard LAN Boot ROM during
bootup. Selecting Disabled will speed up the boot process.
OnChip USB Controller
This setting is used to enable/disable the onboard USB1.1 controller. Setting options:
Disabled, Enabled.
OnChip USB2.0 Controller
This setting is used to enable/disable the onboard USB2.0 controller. Setting options:
Disabled, Enabled.
USB Device Function
This setting is used to enable/disable the onboard USB device controller. Setting
options: Disabled, Enabled. 
						

							3-15 BIOS Setup
USB Legacy Keyboard/MS Support
Select Enabled if you need to use a keyboard/mouse in the operating system. Setting
options: Enabled, Disabled.
Super IO Device
Press  to enter the sub-menu and the following screen appears:
Onboard FDC Controller
Select Enabled if your system has a floppy disk controller (FDD) installed on the
system board and you wish to use it. If you install add-on FDC or the system has no
floppy drive, select Disabled in this field. The settings are: Enabled and  Disabled.
Onboard Serial Port 1
Select an address and corresponding interrupt for the first serial port. The settings
are: 3F8/IRQ4, 2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.
directional transmission/reception is allowed. Under Half Duplex mode, only
asynchronous, bi-directional transmission/reception is allowed.
Onboard Parallel Port
There is a built-in parallel port on the on-board Super I/O chipset that provides Standard,
ECP, and EPP features.  It has the following options:
Disabled
3BC/IRQ7Line Printer port 0
278/IRQ5Line Printer port 2
378/IRQ7Line Printer port 1
Parallel Port Mode
SPP  : Standard Parallel Port
EPP  : Enhanced Parallel Port
ECP :  Extended Capability Port
ECP + EPP: Extended Capability Port + Enhanced Parallel Port
SPP/EPP/ECP/ECP+EPP
To operate the onboard parallel port as Standard Parallel Port only, choose “SPP.” To
operate the onboard parallel port in the EPP mode simultaneously, choose “EPP.” By
choosing “ECP”, the onboard parallel port will operate in ECP mode only. Choosing
“ECP + EPP” will allow the onboard parallel port to support both the ECP and EPP
modes simultaneously.
EPP Mode Select
The onboard parallel port is EPP Spec. compliant, so after the user chooses the
onboard parallel port with the EPP function, the following message will be displayed 
						

							3-16
 MS-6734 M-ATX Mainboard
on the screen: “EPP Mode Select.” At this time either EPP 1.7 spec or EPP 1.9 spec
can be chosen.
ECP Mode Use DMA
The ECP mode has to use the DMA channel, so choose the onboard parallel port with
the ECP feature.  After selecting it, the following message will appear:   “ECP Mode
Use DMA.” At this time, the user can choose between DMA channel 3 or 1.
Init Display First
This item specifies which VGA card is your primary graphics adapter.  Settings: PCI
Slot and AGP. 
						

							3-17 BIOS Setup
Power Management Setup
IPCA Function
This item is to activate the ACPI (Advanced Configuration and Power Management
Interface) function. If your operating system is ACPI-aware, such as Windows 98SE/
2000/ME, select Enabled. Available options: Enabled, Disabled.
Sleep State
This item specifies the power saving modes for ACPI function. If your operating
system supports ACPI, such as Windows 98SE, Windows ME and Windows 2000,
you can choose to enter the Standby mode in S1(POS) or S3(STR) fashion through
the setting of this field. Options are:
S1/POSThe S1 sleep mode is a low power state.  In this state, no sys-
tem context is lost (CPU or chipset) and hardware maintains all
system context.
S3/STRThe S3 sleep mode is a lower power state where the information
of system configuration and open applications/files is saved to
main memory that remains powered while most other hardware
components turn off to save energy. The information stored in
memory will be used to restore the system when a “wake up”
event occurs.
Power Management Option
This item is used to select the degree (or type) of power saving and is related to
these modes: Suspend Mode and HDD Power Down.  There are three options for
power management:
Min SavingMinimum Power Management.  Suspend Mode=1 Hour
Max SavingMaximum Power Management.  Suspend Mode=1 Min
User DefineAllows end users to configure each mode separately.
MSI Reminds You...
S3-related functions described in this section are available only when
your BIOS supports S3 sleep mode.