MSI 845 Ultra C Manual

Chapter 3
3-10OptionDescription
SetupThe password prompt appears only when end users try to
run Setup.
AlwaysA password prompt appears every time when the com-
puter is powered on or when end users try to run Setup. Swap   Floppy
Setting to Enabled will swap floppy drives A: and B:.
Seek  Floppy
This setting causes the BIOS to search for floppy disk drives at boot time.
When enabled, the BIOS will activate the floppy disk drives during the boot
process: the drive activity light will come on and the head...

AMI BIOS Setup
3-11 L1 Cache
Cache memory is additional memory that is much faster than conventional
DRAM (system memory). When the CPU requests data, the system transfers
the requested data from the main DRAM into cache memory, for even faster
access by the CPU. The setting enables/disables the internal cache (also known
as L1 or level 1 cache). Setting to Enabled will speed up the system performance.
Flash Protection
This function protects the BIOS from accidental corruption by unauthorized
users or...

Chapter 3
3-12 Advanced Chipset FeaturesConfigure DRAM Timing by
This setting determines whether DRAM timing is controlled by the SPD (Serial
Presence Detect) EEPROM on the DRAM module. Setting to SPD enables
CAS# Latency, RAS# Precharge, RAS# to CAS# Delay, and Precharge Delayautomatically to be determined by BIOS based on the configurations on the
SPD. Selecting Manual allows users to configure these fields manually.
CAS# Latency
The field controls the CAS latency, which determines the timing delay...

AMI BIOS Setup
3-13 installed in the system. Setting options: 2 Clocks, 3 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: 3 Clocks, 2 Clocks.
Precharge Delay
This setting controls the precharge delay, which determines the timing delay
for DRAM...

Chapter 3
3-14 Power Management SetupIPCA  Function
This item is to activate the ACPI (Advanced Configuration and Power Man-
agement Interface) function. If your operating system is ACPI-aware, such as
Windows 98SE/2000/ME, select Yes. Available options: Yes and No.
ACPI  Standby  State
This item specifies the power saving modes for ACPI function. 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 system...

AMI BIOS Setup
3-15 (Suspend to RAM) sleep state. Settings: Enabled and Disabled.
Mouse Wakeup From S3
This item allows the activity of the mouse to wake up the system from S3
(Suspend to RAM) sleep state. Settings: Enabled and Disabled.
Keyboard Wakeup From S3
This item allows the activity of the keyboard to wake up the system from S3
(Suspend to RAM) sleep state. Settings: Enabled and Disabled.
Specific Key for Wakeup
This setting allows users to set a specific key for the Keyboard Wakeup
From S3...

Chapter 3
3-16 Note: If you change these settings, you must reboot the system until it
enters the operating system and then power off the system. By doing
so, the changed settings will come into effect next time when you
power on the system.Wake Up On Ring
When setting to Enabled, the feature allows your system to be awakened from
the power saving modes through an incoming call from the modem. Settings:
Enabled and Disabled.
Wake Up On PME
When setting to Enabled, the feature allows your system to be...

AMI BIOS Setup
3-17 PNP/PCI ConfigurationsThis section describes configuring the PCI bus system and PnP (Plug & Play)
feature.  PCI, or Personal Computer 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 ESCD
The ESCD (Extended System...

Chapter 3
3-18 The setting must be set to Enabled if any ISA bus adapter in the system
requires VGA palette snooping.
PCI Slot1/6 IRQ, PCI Slot2/5 IRQ, PCI Slot3 IRQ, PCI Slot4 IRQ
This item specifies the IRQ line for each PCI slot. Settings: 3, 4, 5, 7, 9, 10, 11
and Auto. Selecting Auto allows BIOS to automatically determine the IRQ line
for each PCI slot.
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 AMIBIOS...

AMI BIOS Setup
3-19 Integrated PeripheralsUSB  Controller
This setting is used to enable/disable the onboard USB controllers. Settings:
All USB Port, Disabled, USB Port 0&1, USB Port 2&3.
USB  Legacy  Support
Set to All Device if your need to use any USB device in the operating system
that does not support or have any USB driver installed, such as DOS and SCO
Unix. Set to No Mice only if your want to use any USB device other than the
USB mouse. Setting options: Disabled, No Mice, All Device.
On-Chip...