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...

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...

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...

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...

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...

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...

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...

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...

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)...