Acer Aspire 3300s Service Guide

							35Chapter 2
The following table describes each parameter under the sub-menu.  Settings in boldface are the default and 
suggested values. 
 
The other two parameters under the Advanced Chipset Features are presented below.  Settings in boldface 
are the deafult and suggested values.
ParameterDescriptionOptions
System Performance The DRAM timing is controlled by the DRAM 
Timing Registers.  The timings programmed into 
this register are dependent on the system 
design.  Slower rates may be required in certain 
system designs to support loose layouts or 
slower memory.Normal Mode
Safe Mode
Fast mode
Turbo Mode
Ultra Mode
CAS Latency Setting When synchronous DRAM is installed, the 
number of clock cycles of CAS latency depends 
on the DRAM timing.2T, 2.5T, 3T
ParameterDescriptionOptions
Memory Hole at 15M-16M You can reserve this area of system memory for 
ISA adapter ROM.  When this area is reserved, it 
cannot be cached.  The user information of 
peripherals that need to use this area of system 
memory usually discuss their memory 
requirements. Disabled
Enabled
AGP Aperture Size (MB) This item lets you determine the effective size of 
the AGP Graphic Aperture.  64, 4,8,16,32,128 and 256. 
						

							Chapter 236
Integrated Peripherals
The following table describes each Integrated Peripherals parameters.  Settings in boldface are the default 
and suggested values.  
ParameterDescriptionOptions
Internal PCI/IDE This setting enables or disables the internal 
primary and secondary PCI & IDE controllers. Both, Disabled, Primary, 
Secondary
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIOSetting these items to “Auto” activates the HDD 
speed auto-detect function.  The PIO mode 
specifies the data transfer rate of the HDD.  For 
example, mode 0 data transfer rate is 3.3MB/s, 
mode 1 is 5.2 MB/s, mode 2 is 8.3MB/s, mode 3 
is 11.1 MB/s and mode 4 is 16.6MB/s.  If your 
hard disk performance becomes unstable, you 
may manually try the slower mode. Auto, mode 1, mode 2, mode 3 
and mode 4
Primary Master UltraDMA
Primary Salve UltraDMA
Secondary Master UltraDMA
Secondary Slave UltraDMAThese items allow you to set the Ultra DMA 33/
66/100 mode supported by the hard disk drive 
connected to your primary and secondary IDE 
connectors.Auto
Disables
IDE Burst Mode This allows your hard disk controller to use the 
fast block mode to transfer data to and from the 
hard disk drive.  Enabled
Disabled
AC97 Audio Enabling the on-die AC97 Auto if no add-on PCI 
audio device. Auto
Disabled
System Share Memory Size For SiS650 chipset, the system shares memory 
to the onboard VGA card.  This setting controls 
the exact memory size shared to the VGA card.  4, 8, 16, 32, 64MB
USB Controller  This item is used to enable or disable the on-chip 
USB.  Enabled
Disabled 
						

							37Chapter 2
USB Keyboard Support This item lets you enable or disable the USB 
keyboard driver within the onboard BIOS.  The 
keyboard driver simulates legacy keyboard 
command and lets you use a USB keyboard 
during POST or after boot if you do not have a 
USB driver in the operating system.  Enabled
Disabled
USB Mouse Support This item lets you enable or disable the USB 
mouse driver within the onboard BIOS.  The 
keyboard driver simulates legacy mouse 
command and lets you use a USB mouse during 
POST or after boot if you do not have a USB 
driver in the operating system.  Enabled
Disabled
Onboard LAN function To enable or disable the onboard LAN controllerEnabled
Disabled
Onboard LAN Boot ROM This setting determines whether or not to 
activate the boot ROM of the onboard LAN chip.  Enabled
Disabled
IDE HDD Block Mode Block mode is also called block transfer, multiple 
commpands or multiple sector read/write.  If your 
IDE hard drive supports block mode (most new 
drives do), select “Enabled” for automatic 
detection of the optimal number of block read/
write per sector the drive can support.  Enabled
Disabled
Onboard FDC Controller  Setting this parameter to “Enable” allows you to 
connect your floppy disk drives to the onboard 
floppy disk connector instead of a separate 
controller card.  Change the setting to “Disabled” 
if you want to use a separate controller card.  Enabled
Disabled
ParameterDescriptionOptions 
						

							Chapter 238
Power Management Setup
The Power Management menu lets you configure your system to most effectively save energy while operating 
in a manner consistent with your own style of computer use.  
The following screen shows the Power Management parameters and their default settings:
The following table describes the parameters found in this menu.  Settings in boldface are the default and 
suggested settings.
ParameterDescriptionOptions
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.  Enabled
Disabled
ACPI Suspend Type This item specifies the power saving modes for 
ACPI function.  S1(POS): The S1 sleep mode is 
a low power state. In this state, no system 
context (CPU or chipset) is lost and hardware 
maintains all system context.  S3 (STR): The S3 
sleep mode is s power-down state in which 
power is supplied only to essential components 
such as main memory and wake-capable 
devices and all system context is saved to main 
memory.  The information stored in memory will 
be used to restore the PC to the previous state 
when an wake-up event occurs.  S1&S3: Both S1 
and S3 will be adopted.  S3
S1
S1&S3 
						

							39Chapter 2
Video Off Option This item is to control the mode in which the 
monitor will shut down.  
Always On: Always keep the monitor on.  
Suspend --> Off: During suspend mode, the 
monitorwill shut down. Susp, Stby --> During 
suspend or standby mode, the monitor will shut 
down.  All Modes --> Off: The monitor is turned 
off during doze, standby or suspend mode. Always On
Suspend Off
Susp, Stby --> Off
All Modes
Video Off Method This item determines the manner in which the 
monitor is blanked.  
V/H SYNC+Blank: This selection will cause the 
system to turn off the vertical and horizontal 
synchronization ports and write blanks to the 
video buffer.  Blank Screen: This option only 
write blanks to the video buffer.  DPMS 
Supported: Initial display power management 
signaling.  V/H SYNC+Blank
Blank Screen
DPMS Supported
Modem Use IRQ This setting names the interrupt request (IRQ) 
line assigned to the modem (if any) on your 
system.  Activity of selected IRQ always 
awakens the system. 3, 4, 5, 7, 9, 10, 11, AUTO.
HDD Power Down  If HDD activity is not detected for the length of 
time specified in this field, the hard disk drive will 
be powered down while all other devices remain 
active.  Disabled
1~15 Mins
Soft-off by PWR-BTTN This feature allows users to configure the power 
button function.  Instant Off: The power button 
functions as a normal power-
on/-off button. 
Delay 4 Sec: 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 will be 
turned off.  
Aftrer PC Power Lost This item specifies when your system reboot 
after a power failure or interrupt occurs.  Power Off
Power On
Last State
Power On by Ring When enabled, any fax/modem activity wakes up 
the system from suspend mode. Disabled
Enabled
Wake-Up by PCI Card Use PCI Wake-up system.  PCI must meet PCI 
2.2 specification.  Disabled 
Enabled
Resume by Alarm Use this option to set the date and time for your 
computer to boot up. 
Date (of month) Alarm* - Indicate the month for 
system to boot up.  Set it to 0 if you want to boot 
up everyday. 
Time (hh:mm:ss) Alarm* - Indicate the hour, 
minute and second for system to boot up. Disabled
Enabled
*Set Resume by Alarm to 
Enable, then press “Enter” to 
show the range of Date and 
Time Alarm. 
ParameterDescriptionOptions 
						

							Chapter 240
PnP/PCI Configuration
   
The following table describes the parameters found in this menu.  Settings in boldface are the default and 
suggested settings.
NOTE: It is strongly recommended that only experienced users should make any changes to the default 
settings. 
ParameterDescriptionOptions
Reset Configuration Data Selecting “Enabled” to reset Extended System 
Configuration Data (ESCD) only if you installed 
a new add-on and the system reconfiguration 
has caused such a serious conflict that the 
operating system can not boot.  Otherwise, you 
should leave it unchanged. Disabled
Enabled
Resources Controlled By This BIOS can automatically configure all of the 
boot and Plug and Play compatible devices.  
You can also set it as Manual and go into each 
of the sub menu to choose specific resources.   Auto (ESCD)
Manual
IRQ Resources The items are adjustable only when “Resources 
Controlled By” is set to Manual. By pressing 
“Enter” to access the sub menu.  PCI Device
Reserved
PCI/VGA Palette Snoop Disabled - Data read or written by the CPU is 
only directed to the PCI VGA device’s palette 
registers. 
Enabled - Data read or written by the CPU is 
directed to both the PCI VGA device’s palette 
registers and the ISA VGA device’s palette 
registers, permitting the palette registers of both 
VGA devices to be identical.  Disabled
Enabled
*If any ISA bus adapter in the 
system requires VGA Palette 
snooping, the setting must be set 
to “Enabled”. 
						

							41Chapter 2
PC Health Status
The following table describes the parameters found in this menu: 
ParameterDescriptionOptions
Shutdown Temperature This option is for setting the shutdown temperature 
level for the processor.  When the processor 
reaches the temperature you set, the ACPI-aware 
system will be shut down.  
Current System/CPU 
Temperature, CPU/
System fan, Vcore, ect.These items display the current status of all of the 
mainboard hardware devices/components such as 
CPU voltages, temperatures and all fans’ speeds.   
						

							Chapter 242
Frequency Control
The following table describes the parameters found in this menu.  Settings in boldface are the default and 
suggested settings.
ParameterDescriptionOptions
Set CPU Ratio End users can overlock the processor by 
specifying the CPU ratio (clock multiplier) in this 
field.Auto
Manual
CPU Clock Ratio If the CPU Ratio is set to Manual, end users can 
choose a suitable ratioto support the CPU.  8x to 50x
Auto Detect DIMM/PCI Clk This option allows you to enable/disable the 
feature of auto detecting the clock frequency of 
the installed DIMM/PCI bus. Enabled 
Disabled
Spread Spectrum When the motherboard’s clock generator pulses, 
the extreme values (spikes) of the pulses creates 
EMI (Electromagnetic Interference).  The spread 
Spectrum function reduces the EMI generated by 
modulating the pulses so that the spikes of the 
pulses are reduced to flatter curves.  If you do 
not have any EMI problem, leave the setting at 
Disabled for optimal system stability and 
performance.  But if you are plagued by EMI, 
setting to Enabled for EMI reduction.  Remember 
to disable Spread Spectrum if you are 
overlocking because even a slight jitter can 
introduce a temporary boost in clockspeed which 
may just cause your overlock ed processor to 
lock up.  
DRAM Frequency This setting let end users select the DRAM 
frequency.  By SPD
200 Mhz
266 Mhz
333 Mhz 
						

							43Chapter 2
Load Default Settings
The default settings are the default values set by the mainboard manufacturer specifically for optimal 
performance of the mainboard.  When you select the item, a message as below appears:
Pressing Y (Yes) loads the BIOS default values for the most stable system performance.  
						

							Chapter 244
Set Supervisor/User Password
When you choose to set supervisor password, a message as below will appear on the screen:
At the prompt, type your password.  Your password can be up to six characters in length.  After typing the 
password, press “Enter”.  At the next prompt, re-type your password and press “Enter” again to confirm the 
new password.  After the password entry, the screen automatically reverts to the main screen.  
To disable the password, press “Enter” when prompted to enter the password.  The following screen will 
display a message confirming that the password has been disabled.