MSI 945gm2 H Manual

3-12MS-7210 Micro-ATX Mainboard
DRAM 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. Setting
options: [6 DRAM Clocks], [5 DRAM Clocks], [4 DRAM Clocks].
DRAM RAS Activate to Prec
This setting determines the time RAS takes...

3-13 BIOS SetupIntegrated Peripherals
USB Controller
This setting disables/enables theUSB controller. Setting options: [Enabled], [Disabled].
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. Set to Disabled only if you want to use any USB device other than the USB
mouse. Setting options: [Disabled], [Enabled].
Onboard LAN Controller
This setting allows you...

3-14MS-7210 Micro-ATX Mainboard
On-Chip ATA Device
Press  to enter the sub-menu and the following screen appears:
PCI IDE BusMaster
This item allows you to enable/ disable the PCI IDE busmaster. Setting options:
[Disabled], [Enabled].
ATA/IDE Configuration
This item is used to specify the SATA & IDE devices. The setting options are:
CompatibleYou can use the IDE channels with the SATA devices and
IDE devices.
EnhancedYou can use two IDE devices and all of four SATA devices.
DisabledDisable all IDE and...

3-15 BIOS SetupI/O Devices Configuration
Press  to enter the sub-menu and the following screen appears:
OnBoard Floppy Controller
This item allows you to enable/ disable the floppy controller. Setting options:
[Disabled], [Enabled].
COM Port 1/ 2
Select an address and corresponding interrupt for Serial Port 1/ 2. Setting options:
[3F8/IRQ4], [2E8/IRQ3], [3E8/IRQ4], [2F8/IRQ3], [Disabled].
Parallel Port
This specifies the I/O port address and IRQ of the onboard parallel port. Setting
options: [378/IRQ7],...

3-16MS-7210 Micro-ATX MainboardPower Management Setup
ACPI 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]. Setting options: [Yes] and [No].
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,
you can choose to enter the Standby mode in...

3-17 BIOS SetupRe-Call VGA BIOS from S3
When ACPI Standby State is set to [S3/STR], users can select the options in this
field. Selecting [Enabled] allows BIOS to call VGABIOS 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...

3-18MS-7210 Micro-ATX Mainboard
Resume By PS/2 Mouse
This setting only works Resume By PS/2 KB is set to [Hot Key]. This setting
determines whether the system will be awakened from what power saving
modes when input signal of the PS/2 mouse is detected. Setting options: [Disabled],
[Enabled].
Resume By LAN
This setting determines whether the system will be awakened from what power
saving modes when input signal of the LAN device is detected. Setting options:
[Disabled], [Enabled].
Resume by PCI Device...

3-19 BIOS SetupPNP/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 communi-
cating 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.
Primary Graphics Adapter
This setting...

3-20MS-7210 Micro-ATX Mainboard
PCI Latency Timer
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. Setting options: [32], [64], [96], [128], [160],
[192], [224], [248].
PCI slot 1/2 IRQ
This item specifies the IRQ line for each PCI slot.
IRQ Resource Setup
Press  to...

3-21 BIOS SetupDMA Resource Setup
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 avail-
able 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.