MSI Ms6728 Ver 1 Manual

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MS-6728 ATX Mainboard
Advanced Chipset Features
DRAM  Timing Setting...
Press  and to enter the sub-menu screen.
Configure SDRAM Timing by SPD
Selects whether DRAM timing is controlled by the SPD (Serial Presence
Detect) EEPROM on the DRAM module.  Setting to Enabled enables the
following fields automatically to be determined by BIOS based on the
configurations on the SPD.  Selecting Disabled allows users to configure
these fields manually.
MSI Reminds You...
Change these settings only if you are familiar with the chipset. 
						

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BIOS Setup
CAS# Latency
This controls the timing delay (in clock cycles) before SDRAM starts
a read command after receiving it.  Settings: 2, 2.5 (clocks).  2 (clocks)
increases the system performance the most while 2.5 (clocks) provides
the most stable performance.
RAS# Precharge
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: 2 clocks, 3 clocks, 4 clocks.
RAS# to CAS# Delay
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: 2 clocks, 3 clocks, 4 clocks, .
Precharge Delay
This setting controls the precharge delay, which determines the timing
delay for DRAM precharge.  Settings: 5 clocks, 6 clocks, 7 clocks, 8
clocks, .
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.
Available settings: 4, 8.
AGP Aperture Size (MB)
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 
						

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MS-6728 ATX Mainboard
dedicated to graphics memory address space.  Host cycles that hit the aperture
range are forwarded to the AGP without any translation.  The option allows the
selection of an aperture size of 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and
256 MB.
Internal Graphics Mode Select (For 865G only)
The field specifies the size of system memory allocated for video memory.
Settings: Disabled, 1MB, 4MB, 8MB, 16MB, 32MB. 
						

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BIOS Setup
Power Management Features
APCI Standby State
This item specifies the power saving modes for ACPI function. If your operat-
ing system supports ACPI, such as Windows 98SE, Windows ME and Win-
dows 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 system
context is lost (CPU or chipset) and hardware maintains all sys-
tem 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.
AutoBIOS determines the best automatically.
Re-Call VGA BIOS at S3 Resuming
Selecting Enabled allows BIOS to call VGA BIOS to initialize the VGA card
when system wakes up (resumes) from S3 sleep state. The system resume time
is shortened when you disable the function, but system will need an AGP 
						

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MS-6728 ATX Mainboard
driver to initialize the VGA card. Therefore, if the AGP driver of the card does
not support the initialization feature, the display may work abnormally or not
function after resuming from S3.
Power Management/APM
Setting to Enabled will activate an Advanced Power Management (APM)
device to enhance Max Saving mode and stop CPU internal clock. Settings:
Disabled, Enabled.
Suspend Time Out (Minute)
After the selected period of system inactivity, all devices except the CPU shut
off. Settings: Disabled, 1, 2, 4, 8, 10, 20, 30, 40, 50, 60.
Power Button Function
This feature sets the function of the power button. Settings are:
On/OffThe power button functions as normal  power off button.
SuspendWhen you press the power button, the computer enters
the suspend/sleep mode, but if the button is pressed for
more than four seconds, the computer is turned off.
Restore on AC/Power Loss
This setting specifies whether your system will reboot after a power failure or
interrupt occurs. Available settings are:
Power OffLeaves the computer in the power off state.
Power OnLeaves the computer in the power on state.
Last StateRestores the system to the previous status before power
failure or interrupt occurred.
Set Monitor Events
Press  and the following sub-menu appears. 
						

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BIOS Setup
FDC/LPT/COM Ports, Primary/Secondary Master/Slave IDE
These items specify if the BIOS will monitor the activity of the specifi\
ed
hardware peripherals or components. If set to Monitor, any activity
detected on the specified hardware peripherals or components will wake
up the system or prevent the system from entering the power saving
modes. Settings:  Monitor, Ignore .
Set WakeUp Events
Press  and the following sub-menu appears.
USB Device Wakeup From S3
This item allows the activity of the USB devices (keyboard and mouse) \
to
wake up the system from S3 sleep state. Setting:   Enabled, Disabled.
Resume On PME#
This field specifies whether the system will be awakened from power
saving modes when activity or input signal of the specified hardware
peripheral or component is detected. Settings:  Enabled, Disabled .
Resume By RTC Alarm
This is used to enable or disable the feature of booting up the system o\
n
a scheduled time/date from the soft off (S5) state. Settings:  Enabled,
Disabled . 
						

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MS-6728 ATX Mainboard
RTC Alarm Date/Hour/Minute/Second
If Resume By Alarm  is set to Enabled , the system will automatically resume
(boot up) on a specific date/hour/minute/second specified in these fie\
lds.
Available settings for each item are: Alarm Date 01 ~ 31, Every Day
Alarm Hour 00 ~ 23
Alarm Minute 00 ~ 59
Alarm Second 00 ~ 59
Keyboard PowerOn Function
This controls how the PS/2 keyboard can power on the system.  Settings:
Any Key , Specific Key, Disabled .
Specific Key for PowerOn
This setting allows users to set a password (max. 5 letters) for the
Keyboard Wakeup  function.
Mouse PowerOn Function
This item allows the activity of the mouse to wake up the system sleep
state.  Settings:  Disabled, Any Action, Left-button, Right-button .
MSI Reminds You...
If you have changed this setting, you must let the system boot up
until it enters the operating system, before this function will work. 
						

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BIOS Setup
PNP/PCI Configurations
This section describes configuring the PCI bus system and PnP (Plug
& Play) feature.  PCI, or Peripheral Component Interconnect, is a system which
allows I/O devices to operate at speeds nearing the speed the CPU itself uses
when communicating with its special components.  This section covers some
very technical items and it is strongly recommended that only experienced
users should make any changes to the default settings.
Clear NVRAM
The ESCD (Extended System Configuration Data) NVRAM (Non-volatile
Random Access Memory) is where the BIOS stores resource information for
both PNP and non-PNP devices in a bit string format. When the item is set to
Yes, the system will reset ESCD NVRAM right after the system is booted up
and then set the setting of the item back to No automatically.
PCI Latency Timer (PCI Clocks)
This item controls how long each PCI device can hold the bus before another
takes over. When set to higher values, every PCI device can conduct
transactions for a longer time and thus improve the effective PCI bandwidth.
For better PCI performance, you should set the item to higher values. Settings
range from 32 to 248 at a 32 increment. 
						

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MS-6728 ATX Mainboard
Init. Graphics Adapter Priority
This setting specifies which VGA card is your primary graphics adapter. Setting
options are:
Internal VGAThe system initializes the onboard VGA device.
(For 865G)
AGP/Int-VGAThe system initializes the installed AGP card first.
If an AGP card is not available, it will initialize the
onboard VGA device. (For 865G)
AGP/PCIThe system initializes the installed AGP card
first.  If an AGP card is not available, it will initial-
ize the PCI VGA card.
PCI/AGPThe system initializes the installed PCI VGA card
first.  If a PCI VGA card is not available, it  will
initialize the AGP card.
PCI/Int-VGAThe system initializes the installed PCI VGA card
first.  If a PCI VGA card is not available, it  will
initialize the onboard VGA device.(For 865G)
PCI IDE BusMaster
Set this option to Enabled to specify that the IDE controller on the PCI local
bus has bus mastering capability. Setting options: Disabled, Enabled.
PCI Slot1 IRQ Priority, PCI Slot2/5 IRQ Priority, PCI Slot3 IRQ Priority,
PCI Slot4 IRQ Priority
These items specify the IRQ line for each PCI slot. Setting options: 3, 4, 5, 7, 9,
10, 11, Auto. Selecting Auto allows BIOS to automatically determine the IRQ
line for each PCI slot.
Set IRQs to PCI or ISA
Press  to enter the sub-menu and the following screen appears: 
						

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BIOS Setup
IRQ 3/4/5/7/9/10/11/14/15
These items specify the bus where the specified IRQ line is used.
The settings determine if AMIBIOS should remove an IRQ from the pool
of available IRQs passed to devices that are configurable by the system
BIOS.  The available IRQ pool is determined by reading the ESCD NVRAM.
If more IRQs must be removed from the IRQ pool, the end user can use
these settings to reserve the IRQ by assigning an ISA/EISA setting to it.
Onboard I/O is configured by AMIBIOS. All IRQs used by onboard I/O
are configured as PCI/PnP. If all IRQs are set to ISA/EISA, and IRQ 14/15
are allocated to the onboard PCI IDE, IRQ 9 will still be available for PCI
and PnP devices. Available settings: ISA/EISA and PCI/PnP.
Set DMAs to PnP or ISA
Press  to enter the sub-menu and the following screen appears:
DMA Channel 0/1/3/5/6/7
These items specify the bus that the system DMA (Direct Memory
Access) channel is using.
The settings determine if AMIBIOS should remove a DMA from the
available DMAs passed to devices that are configurable by the system
BIOS. The available DMA pool is determined by reading the ESCD
NVRAM. If more DMAs must be removed from the pool, the end user can
reserve the DMA by assigning an ISA/EISA setting to it.