MSI Hetis 865gv-e Manual

							4-13BIOS 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, refresh 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 al-
lows internal address counter to properly generate the next memory
location.  The bigger the size, the faster the DRAM performance.
Available settings: [4], [8].
Internal Graphics Mode Select
The field specifies the size of system memory allocated for video memory.
Settings: [Disabled], [1MB],  [8MB], [16MB]. 
						

							4-14 Chapter 4
4.6 Power Management Features
ACPI Standby 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/XP, you can choose to enter the Standby mode in S1(POS) or S3(STR)
fashion through the setting of this field. Options are:
[S1/POS]The S1 sleep mode is a low power state.  In this state, no
system context is lost (CPU or chipset) and hardware
maintains all system context.
[S3/STR]The 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.
[Auto]BIOS determines the best mode automatically. 
						

							4-15BIOS Setup
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 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 func-
tion 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/Off]The power button functions as normal  power off button.
[Suspend]When 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 Off]Leaves the computer in the power off state.
[Power On]Leaves the computer in the power on state.
[Last State]Restores the system to the previous status before power
failure or interrupt occurred.
Set Monitor Events
Press  and the following submenu appears. 
						

							4-16 Chapter 4
FDC/LPT/COM Ports, Primary/Secondary Master/Slave IDE
These items specify if the BIOS will monitor the activity of the specified
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 submenu 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].
Keyboard Wake up From S3
You have two options:  [Any Key] & [Disabled].  Selecting [Any Key]
allows you to power on the system by pressing any key.
Mouse Wake up From S3
Selecting [Enabled] allows you to power on the system by clicking the
mouse. Setting: [Enabled], [Disabled].
Resume on Ring
You need to install a modem card supporting power on function in
order to enable the item.  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]. 
						

							4-17BIOS Setup
Resume On RTC Alarm
This is used to enable or disable the feature of booting up the system on
a scheduled time/date from the power off (S5) state. Settings: [Enabled],
[Disabled].
RTC Alarm Date/Hour/Minute/Second
If Resume On RTC Alarm is set to [Enabled], the system will automatically
resume (boot up) on a specific date/hour/minute/second specified in these
fields. Available settings for each item are:
Alarm Date01 ~ 31, Every Day
Alarm Hour00 ~ 23
Alarm Minute00 ~ 59
Alarm Second00 ~ 59 
						

							4-18 Chapter 4
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 (Nonvolatile Ran-
dom 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. 4.7 PNP/PCI Configurations 
						

							4-19BIOS Setup
Init. Graphics Adapter Priority
This setting specifies which VGA card is your primary graphics adapter. Setting
options are:
          [ Internal VGA]The system initializes the onboard VGA device.
[PCI/Int-VGA]        The system initializes the installed PCI VGAcard
first.  If a PCI VGA card is not available, it will
initialize the onboard VGA device.
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  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 deter-
mine the IRQ line for each PCI slot.
Set IRQs to PCI or ISA
Press  to enter the sub-menu and the following screen appears:
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 BIOS 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 a [ISA/EISA] setting to it.
Onboard I/O is configured by BIOS. 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]. 
						

							4-20 Chapter 4
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 used.
The settings determine if BIOS 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 a [ISA/EISA] setting to it. 
						

							4-21BIOS Setup
USB Controller
This setting is used to enable/disable the onboard USB controllers.
USB Device Legacy Support
Set to [Enabled] if your need to use any USB 1.1/2.0 device in the operating
system that does not support or have any USB 1.1/2.0 driver installed, such as
DOS and SCO Unix.  Setting options: [Disabled], [Enabled].
On-Chip IDE Configuration
Press  to enter the sub-menu and the following screen appears: 4.8 Integrated Peripherals 
						

							4-22 Chapter 4
On-Chip ATA(s) Operate Mode
This setting allows you to determine how the RAID controller on the
south bridge is going to switch to SATA controller. [Legacy Mode] means
you may use the traditional 14 and 15 IRQs, while [Native Mode] means
you may use all the available IRQs.
Legacy  Mode:
--- In this mode, system BIOS just assign the traditional 14 and 15 IRQs to
use for HDD.
--- Older  OSs  that do not support switch to Native Mode (DOS, Win2K,
Win98/ME...) should set SATA and PATA to Legacy Mode.
--- Maximum 4 ATA devices to connect.
--- Combine mode and Non-Combine mode.
† Non-Combined Mode: P-ATA devices only .
                                             Maximum of 4 devices.
† Non-Combined Mode: S-ATA devices only.
        Maximum of 2 devices.
† Combined Mode: S-ATA devices
           P-ATA devices
           Maximum of 2 devices each, thus total
          4 devices at  maximum.
Native  Mode:
--- In this mode, system BIOS will search all available IRQs to use for
HDD.
--- New OS that support switch to Native Mode (WinXP, Windows .NET
Server) can set SATA and PATA to Native Mode.
--- Comprehend both Legacy and/or Native Modes.
--- Maximum 6 ATA devices to connect (4 for P-ATA & 2 for S-ATA).
ATA Configuration
The field lets you to configure the available ATA controller.  Setting
options: [Disabled], [P-ATA Only], [S-ATA Only], [P-ATA+S-ATA].
S-ATA Keep Enabled
This item is available for you to enable/disable the onboard S-ATA.
Setting options: [Yes], [No].