AMPTRON DX-6900 User manual

DX-6900
True Green VESA Master
486 System Board
Cnurti
EPA POLLUTION PREVENTER
User's Guide
Version 1.73
Printed in U.SA.

Table Of Contents
Introduction
System Features
****** *°'°****** ''*'"******** '*°"**°°****'° '***°'*°*°°****°°
..
System Board Configuration
*www.w
Board Description.... **********'***''°°* '****'************************°********°*°***°**°
2
Jumper Settings.
***'********* ******°***'**"°******°''**"***°********''°''*°''**"'°****** **
....
Misc. Configuration Jumpers... 3 *****"****'****************'*********'**********************
CPU Jumper Setting.. e********eseceeecoessse
VL-Bus Configuration..
Green Function Jumper. ***********************°.****°**************
Memory Sub-System..
*** ********** *************. **.* ******.
Cache Sub-system..
..
Cache Memory Configuration..
Cache
Configuration
-
Jumper
Setting.
9
************* ****.
.
System BIOS Configuration
wwwwwww
**wwwww
*w.w.wWww.ww. ww
System BIOS Setup. 10 ******* *************************************************
Entering BIOS Setup Program. ***°*°***°°****°****°°****** "******°° ***°°*'°°°***°°
10
Standard Setup Option. .11
*************.**********
Load BIOS and
Setup
Defaults
.11 ************
DX-6900

DX-6900
System Board Configuration
System Features
Advanced Setup... ********* **"
****'************* 12
****
Congratulations on the purchase of your 486 VL-Bus system board. It is a high performance
microcomputer system board that extends the capabilities of the ISA architecture with high
performance
VESA
Local Bus.
By
implementing
VL-Bus,
the
system
board
allows
high
speed
VL
Bus peripherals to communicate directly with CPU to achieve incredible performance boost. The
standard 1BMAT bus architecture uses an 8 MHz, 16 bit bus. However, the VL-Bus bring 32 bit bus
and up to CPUCLK operational speed for the local bus peripherals for increased system
performance to users.
Chipset Features Setup.
.14 ***°******"***
Power Management Setup.
.16
** '*****'********* *************************
Password Setting. .17
***********
****'****
******************
In addition of supporting 486SX, 487SX, 486DX, and 486DX2 CPUs, this system board is also
equipped to support the next generation of 486 microprocessor the 486DX4(P24C). This
microprocessor is capable of running triple clock within the CPU for up to 100MHz
Exiting Setup Utility.
.17 **'** '**'****'*** ******
Keyboard Turbo Switch...
17 '***** '******"********
Moreover,
this 486
VL-Bus
system
board is
buit with true
green
power
saving
features.
The
SMM/SMI system management protocol the chip set implemented gives you maximum power
saving with SL enhanced CPUs from Intel, and Cyrix in a transparent manner regardless of
operating system with full user control in BIOS.
Intel 486DX4-100(33)MHz, DX/DX2-33/66MHz, 80486SX-33MHz; 1BM, SGSs
and Cyrix 486DX2-66MHz, DX2-80MHz; and AMD AM486DX4-33/100MHz
486DX/Dx2-33/66MHz are supported.
Built-in upgradability The 237-pin, ZIF CPU socket allow easy upgradein
the future
Trademarks Acknowledgment
SMM/SMI powermanagement detects video and IRQ status. Support CPU
StopClock
to
OMHz with SL enhanced
CPUs and
8MHz
clock down
mode
through chipset for other CPUs.
IBM, PC, XT, AT, and OS/2 are products and trademarks of International
Business Machines Corporation.
APM(Advance Power Management) Mode is fully supported.
VESA standard Local Bus with Bus Mastering for high speed VL Bus
peripherals to communicate directly with CPU.
AMI is a trademark of American Megatrends Inc.
Optional 64KB, 128 KB, 256KB, 512KB or 1MB external write back, direct-
mapped cache.
Intel, PENTIUM, A80486DX2, A80486DX, A80486Sx, A80487SX,
AB0386DX A80387, A80486DX4 are trademarks of Intel Corps.
2 banks of 72 pin SIMM and 1 bank of 30 pins SIMM module memory on the
MS, MS DOS and Microsoft are trademark of Microsoft Corps.
system board allow flexible solution, and it is expendable from 1MB to
64MB.
Timing option to support local bus device at high clock rate.
Other trademarks
belong to their respective
owners.
System and video BIOs shadowing with caching options for enhanced
performance.
On board 3.3V voltage regulator for Dx4(P24C) CPU.
Three Master VESA Local Bus slots, seven 16-bit ISA I/O slots.
Published and printed in U.S.A.
w.D. 1995 Doc #: 6990495
DX6900

2
System BoardConfiguration
System Board Configuration
3
DX-6900 DX-6900
Board Description
Jumper Settingss
This 486 VL-Bus system board has several jumper switches that must be set to define both the
board and system configurations. They are turn on and off by placing or removing a cover cap over
the pins. Placing the cover cap is called 'Shorting' the jumper.
The
locations of
jumpersS
are detailed on the
Board
Configuration
at the
beginning
of
this
chapter.
The functions and there corresponding settings or pin assignments are described as follow:
JPI
JP3
| nnn
T
Misc. Configuration Jumpers
Bank 6
JP 1- External Battery Connector/ Clear CMOS
Pinout/ Shorting
Assignment
=
1 Ext.
Battery (+) Connector
Ext.
Battery (-)
Connector
2 3 On-Board
Lithium Battery
Cache
Bank o
UUUU
34
Clear CMOS
Scket
Important Please make sure the pins 2 3 are shorted before using the system
board.
The
system
board is
shipped
from
the
factory
with the
pin
3 4
shorted
top
prevent battery drain during storage. Failure to reset this jumper to pins 23
would disable
the board from
powering
up
486
JP1O
JP14
ZIF
OOCKO
Coche
Bank 1
JULI
JP36
JP27
JP 15-Keylock & Power LED
JP30 JP34
JP16
P35
JP24 ' d JP31
Pinout
Assignment
JP26 JP33
1 LED
Power
2 N/C
JP15
JP18
JP19 JP20 JP22 JP23
Ground
Keyiock
Speaker
Turbo Resef
Green 4
Keyboard Lock
LCD SWIIGT
00NIANAwwww.wwwww.
5 Ground
JP 18-Speaker
Pinout Assignment
Speaker Data Out
4 5V

System Board Configuration
System Board Configuration
5
DX-6900
DX-6900
CPU Jumper Setting
JP 19 Turbo LED
Pinout
Assignment
CPU Clock Selection Jumper
LED (+)
CPU Clock Input
CPU Freq.
JP 6
JP 7
JP 8
LED (-)
2
25MHz
SX -25MHz
Open Open
Short
DX2 50MHz
JP 20 System Reset
DX/SX -33MHz
Pinout
Assignment
33MHz
DX2-66MHz
Short Short
Short
DX4- 100MHz
Reset
40MHz DX- 40MHz
Open
Short Short
2 Ground
DX2-80MHz
5OMHz
DX - 50MHz
Short
Open Open
JP 22- Turbo Switch
State
Shorting
CPU Type Selection Jumper
Turbo
Open
486 Non-SL Enhanced
486 SL Enhanced
Non-Turbo
1-2
Intel/ AMD
AMD
Intel
Cyrix
SX
DX
DX2
DX4
DX
DX4 DX, DX2
DX2-V80
JP 2, JP 3 - Reserved
DX2 DX2
Reserved
Factory Default
Voltage
5V 3.3V 5V
3.3V
5V
3.3V
4V
JP 2 2 3
JP 24
JP 2 25
JP 26
JP 3 Open 2 3 1 2 2 3
1~2
2-3 12
1 2
JP 27
Open
Open
12,34
2 3
JP 28
2 3
1-2
2-
1~2,3-4,5-6
JP 29
Open
Open
12
1-2,3-4, 5-6
JP 30
Open
Open
2-3,4-5
5 6
JP 31
Open Factory Reserved Jumper, Must Remain Open.
JP 32
Open
1-2 1 2 1 2
12
JP 33
2 3
1-2
1-2
1 2
1-2
3-4
3 4 3 4
34
|JP 34
Short Short
Open
Open
Open
Short Short
Short
Open
JP 35
Shon
Please see next page for additional CPU(SxB6, Cx486DX4, AMD DX4-120)
configurations.

System Board Configuration
System Board Configuration 7 6
DX-6900 DX-6900
CPU Type Selection Jumper {Cont.
VL-Bus Configuration
This system board is fuly compatible with the new Cyrix and AMD microprocessors except the
Green Mode for Cyrix DXA CPU. If Cyrix DX4 CPU is installed, the "Power Management Mode
Select' must be disabled in yourBIOS seting(see Power Management Setup in the User's Guide).
However, there are two type of CXDX4 CPUs, they difer only on their pin assignment. The first
type(GP4)
follow the
Intel P24D
pin-out,
the second
type(GP)
follow the
Cx486DX(M7) pin-out.
You
need to be certain that you received this information when you acquired the CPU.
JP 16, JP 17 -VL-Bus Wait State
Normal
Extra Wait State
Description
(<or = 33MHz) (33MHz)
Before installation, you need to check the BIOS' Release Date(this Date is shown during the BIOS
JP 16
Open
Short
VESA Clock
boot-up
screen
before the
memory
count).
All three
type
of CPUs
required
new BIOs.
If
the
Release Date is earlier then 7/2/95, it need to be upgraded with BIOS with Release Date 7/2/95 or
JP 17
Open
Short VESA Wait State
later
If the BIOS ersion is correct, the next step is to setup the jumpers according to the following table.
Green Function Jumper
Cyrix
AMD
JP 23 Forced Green Mode Trigger Switch
5x86(M1sc)
Cx486DX4-GP
Cx486DX4-GP4
486DX4-120 Shorting
State
(M7 Pin-out)
(P24D Pin-out)
Trigger once
Forces system into green mode
JP 24 immediately
JP 25
1-2
1 2
Trigger again
Normal operation
JP 26
This jumper may be connected to the Reset Button on the computer case if the
case does not has a separated button for this function, you may then use the
power-off to reset the system when it is needed.
JP 27
2 3 1
2,34
JP 28
1 2, 3
4,5
6 1
2, 4~5
WARNING - This is a trigger switch, do not keep this jumper short or the
system will have problem waking up or boot after reset. For this reason, do
not use the Turbo Button on the system chassis for this switch since one
may forget to release the button after it triggered the system into the green
mode.
JP 29
12, 3 4, 5~6
1 2,4 5
30
2 3, 4-5
3
4,
5 6
31 Open
Open
JP 32
1-2
1-2
JP 33
1 2, 3~4
12,34
JP 34
Open
Open
JP 35
Short
Short

8
System Board Configuration
System Board Configuration
DX-6900
DX-6900
9
Memory Sub-System
Cache Sub-system
There are 2 banks of 72 pins SIMM socket and 1 bank of 30 pins SIMM socket on this board, each
bank of 72 pins SIMM consists of only one SIMM socket as denoted as Bank 1, Bank 2; Bank 0 is
the sockets for the 30 pins' SIMMs. These three banks are not required to be filled in sequence as
Cache Memory Configuration
in Bank 0 first and Bank 3 last. The system board has auto-detection circuitry to sense which bank
Please refer to the "Board
Description"
at the
beginning
of this
chapter
for their
physical
locations
Since single bank installations the high lighted Conf. Types, prevent the cache sub-system from
using interleaving access, the "Auto Configuration" in the Advanced Chipset Setup must be
disabled and the "Cache Read Wait State" must also be set to "3-2-2-2" to ensure proper operation.
or banks are filled. Any SIMM modules listed below with Fast Page Mode, single(S) or double(D)
side can be used.
There are certain restrictions in term of the combination of SIMM modules you may use for the 3
banks. Please refer to the table below for all usable combinations, the Bank 0 has to be filled fully(4
pcs.) with same type of SIMMs if Bank 0 is to be used.
SRAM Type
Tag RAM
Conf. Total Bank 0 Bank 1
PCs.
Type Cache Size (U21, 22, 23, 24) (U28, 29, 30, 31)
U 20
Note: The total size of any combination of the SIMM modules installed can
NOT exceed 64MB
Required
=
A 64K
8Kx 8
8Kx8
x8
SIMM Type
128K
32K x8
BKx 8 5
Bank 0
Bank 1
Bank 2
256K
32K x8
32K x 8
32K x8 9
(30 Pins x 4)
(72 Pins U 17) (72
Pins U 18)
256K 64Kx 8
32Kx 8
256K x 9/8 1MB None OMB None OMB
256Kx36/32 S - 1MB
512K
64Kx 8
64Kx8
32Kx8
9
First
1Mx 9/8-4MB
256Kx36/32 S - 1MB
1Mx36/32 S - 4MB
1Mx36/32 S- 4MB
512K
128Kx 8
32K x8
Possible 4M x 9/8- 16MB
4Mx36/32 S - 16MB
4Mx36/32 S-16MB
64Kx8 9
Combination
16M x 9/8 - 64MB
G
1024K 128K x 8
128K x 8
16Mx36/32 S- 64MB 16Mx36/32 s-64MB
None OMB
256Kx36/32 S - 1MB
None None -OMB
Cache Configuration-Jumper Setting
256Kx36/32S-1MB
Second
512Kx36/32 D - 2MB
512Kx36/32 D -2MB
Possible
1Mx36/32 S - 4MB
1Mx36/32 S 4MB
Conf. Size JP 5
JP 10
JP 11 JP 12 JP 13 JP 14
2Mx36/32D- 8MB
4Mx36/32 S - 16MB
8Mx36/32D -32MB
Combination
2Mx36/32 D - 8MB
Type
4Mx36/32 S-16MB
8Mx36/32 D- 32MB A 2 3
2-3
16Mx36/32 S - 64MB 16Mx36/32 S - 64MB
64K
Open
Open
Open
open
B
128K
1 2 1 2
Open
Open
Open
Short
2 2-
-3
256K 3 Open
Open
Short Short
One easy rule to follow is that if the Bank 0 is populated, than Bank 1 and Bank 2
can not be used for any double side SIMM module.
256K 12, 34
1 2 Open
Open
Short Short
D
Note -"Double Side SIMM" also refer to as "Double RAS" or "Double Density".
E
512K
2 3, 4 5 2 3
Open
Short Short
Short
F 512K
1-2,3-4,5 6
1-2
Open
Short
Short
Short
1024K
2 3, 4-5, 6 7 2 3
Short
G
Short
Short Short
JP36
Factory
Reserved Jumpe
Reserved
Factory Default
=
JP 36
Short

System B/OS Configuration
DX-6900 System BIOS Configuration
11
10
DX-6900
System BIOS Setup
Standard Setup Option
After
you
have
configured
the
system
board
and assembled
all
the
components,
you
need
to enter
the system configuration information to the system BlOS through the AMI WinBIOS Setup
programs.
This
AMI WinBIOS
Setup program
and
the
system
configuration
information are
embedded in the system board and it is backup by the on-board battery.
Date, and Time Options
If you would like to set Date, and Time option, move cursor to highlight the items and use
PgUp/PgDn to modily the data.
This system board is equipped with the latest AMI WinBIOS for easy configuration where mouse is
enabled if you have a mouse attached. You may either use the keyboard or use the mouse to pick
Hard DiskC & D Types
According to your
actual
equipment, you can select the type
of hard disks
for
C,
D, E, a F
from 'Not Installed' to type 46 for standard hard disks. As lor type 47, user may define by
himself.
and change configuration options.
Entering BIOS Setup Program
Floppy Drives A & B
Turn on or Reboot the system. After the system finished testing the on-board memory, the message
"Hit DEL if you want to run SETUP" will appear. Press "DEL" key at this time will bring you into the
According to your actual equipment, set floppy drive A & B whose five options are as
highlighted.
BIOS Setup program.
Use
keyboard
"Tab"
key
to
choose
different
group
windows, "Arrow"
keys
to
high-ight
items, and
use the "Enter" key to select option or you may use the mouse to "Click" on item you want to select
and change. Press "ALT+ H" keys will bring up the Help Screen.
Load BIoS and Setup Defaults
There are three sets of BIOS values stored in the ROM files
After the BIOs Setup program in entered, you may want to do choose the "Standard" icon in thee
The "Original" default values
"SETUP" group window for date, time, and all disk drives information. If you have IDE Hard Drive(s)
installed,
the "Detect
C" and
"Detect
D" icons
in the
"Utility"
group
window
can
be use to
automatically enter your hard drive(s) information.
The "Optimal" default values
The "Fail-Save" default values
At any time you may press "ESC" key to exit the window, and choose the "Do not save and exit"
option to keep the original configuration.
The "Original" default values are those original options you have changed in the current sessio.
You may use this option to restore the original values you changed in the current session if you
changed your mind before they are saved. Once the changes are saved, this option does not
restore the original values.
The "Optimal" default values are those settings which should provide optimum performance for the
system. They are the best case defautvalues
The "Fail-Save" default values, which are the most conservative case defaults, but also are the
most stable default values for the system. They are to be used if the system is performing erratically
because of the hardware problems.

12
System BIOS Configuration
DX-6900
DX-6900
System BlOS Configuration
13
Advanced Setup
External & lnternal Cache Memory
Due to frequent update of system BIOs, the actual options available in your system board BIOS
setups may vary comparing with this manual. If technicaly necessary, we would provide a special
insert for instruction for the difference in regard to any changes of the BlOS setup option.
These options allows user to enable or disable the on-board (External) and the on-
chip(Internal) cache memories (SRAM) when special peripheral or software implemented
indicate such requirement. System over all speed will slow down considerably if these options
are disabled.
Typematic Rate Programming
By enabling this option, the user can select the rate at which a keystroke is repeated by
acjusting options "Typematic Rate Delay" and "Typematic Rate".
Password Checking
This option
allow a
password
be set
up so
that a
password wil
be
needed to
enter the
CMOS
Setup
or to boot the
system including entering
CMOS
Setup.
After this
option
is
enabled, you must use the PASSWORD icon in the security group to setup your password. If
in any case the password is lost or forgotten, the jumper JP 1 Clear CMOS can be used to
clear the configuration. WARNING -"JP 1" will clear and reset ALL and EVERY
configuration parameters. Make sure you know what you are doing or ask someone who do to
help you.
Typematic Rate Delay & Typematic Rate
When a key is pressed and held down, the character appears on the screen and after a delay
set
by
the
"Typematic
Rate
Delay",
it
keeps on repeating at
a
rate
set
by
the "Typematic Rate
value. Usually, these options are adjusted for Network, OS/2 or other similar type of
operating system when keyboard reaction become comparatively slow. By using these options,
the typematic rate can be adjusted to suit individual preference.
Virus Warning
System Keyboard
When keyboard is installed, POST routine test keyboard, otherwise, it does not.
This function, If enabled, will detects boot sector viruses and warning will be given when a
program attempted to dhange boot sector information.
Primary Display
Video &Adapter ROM Shadows
Select the primary display. If you chose "Not Install", the system will ignore the primary display
while doing the POST test.
Video and/r adapters ROM shadowing
is a
proaedure in which
BIOS codes
from
peripheral(s) adapter(s)
ROM when present are
copied
from
slower ROM to faster
RAM.
The BIOS
are then
executed
from
the faster
RAM.
Each
option
allows for a segment
of 16
KB to
be
shadowed
from
ROM to
RAM. If
one of these options
is
enabled,
and there is
BIOS present in that particular 16 KB segment, the BlOS will be shadowed.
Extended BIOS RAM Area
The AMI BIOS Setup features one user-definable hard disk type. Nomally, the data for these
disk types are stored at the 0:300 in the lower system RAM.
IDE Block Mode
If a problem occurs with software like Netware or OS/2 or similar that uses lower system
RAM, this data can be loaded at the upper limit of the DOS shell(640K). If the option is
set to DOS 1K, the DOS memory is shortened to 639KB, and the top 1KB is used for the
IDE HDD block mode transfer allows data to be transferred to and from the IDE hard dive in
multiple sectors at a time. Most new hard drive and HD controller support this function, be
sure to check with the hard drive and hard drive controller manufacturers before using this
option.
hard disk type storage.
Floppy Drive Seek at Boot
You may set this option to "Disabled" to allow a last boot and to reduce the possibility of
damage to the drives heads.
IDE LBA Mode and IDE 32 Bit Mode
These 2 options, if enabled with the use of the on-board IDE controler, would enhance you
disk sub-system performance.
Most new hard drives should
support
these
functions,
be sure to
check with the hard drive manufacturer before using these options.
System Boot Up Sequence
Video Shadow Before Video Init
The system may be set to seek the operating system during power up either rom the HopPy
drive A: or from the hard drive C: by using this option.
Enabling this option may speed up the boot up process due to the graphic nature of the
WinBIOS.
This
option
may
be
disabled
if
video
problem
is
encountered and it
should not
have any impact on the system pertormance alter boot-up.

14
System BIOS Configuration
System BiOS Configuration
15
DX-6900
DX-6900
Chipset Features Setup
Alt Bit in Tag SRAM
The default "7+1" setting would give better performance and should always set as such.
Due to frequent update of system BIOS, the actual options available in your
system board BIOS setups may vary comparing with this manual. If technically
necessary, we would provide a special insert for instruction for the difference in
regard to any changes of the BIOS setup option.
Local Ready Delay Setting
Local Bus Setting, unless otherwise required, do not change the default setting.
Most of the options in this group have major influence tothe system. If
options are notset properly, it may not only the performance will be greatly
affected, but also it may bring the system down unexpectedly in mostcases.
Therefore it is only wise to leave the defaults alone unless there are specific
reason to do any change.
Signal LDEV# Sample Time
Local Bus Setting, unless otherwise required, do not change the default setting.
Auto Config Functions
CPU ADS# Delay 1T or Not
When this item is enabled, the system BIOS will detects CPU type and board frequency and
automatically set the option on the items indicated below to the optimum setting. The system
will ignores the setting entered manually. IF this option is disabled, the items below it must be
set manually according to CPU type and speed. The following table is the auto-configuration
deBault settings for the dilferent operation frequency.
Local Bus Setting, unless otherwise required, do not change the default setting.
ISA Bus Refresh Disable Bit
"Fast' setting provide better performance.
Cache Read Hit Wait State
Divider for Refresh
This option allows you to choose the cache read operation mode during burst read. The
3-1-1-1 can be used for 33MHz system or less with 2 banks of cache memory installed.
The 3-2-2-2 should be used for system faster then 33MHz or only one bank of cache
installed.
Memory reresh setting, unless otherwise required, do not change the default setting.
System Memory Remap or Not
Enabled
this
option
will
allow the
system
to
remap
the unused
upper memory
to the extended
addresses.
Cache Write Hit Wait State
The O can be used for 33MHz system or less with 2 banks of cache memory installed.
Video, Adapter &System ROMs Cache
The video, adapter and system shadows can also be cached for improved performance.
The
should be used for system faster then 33MHz or only one bank of cache installed.
DRAM Wait State Select
The 1 can be used for 33MHz system or less. The 2 should be used for system faster
LowA20# Select, & RC Reset Select
then 33MHz.
The GateA20 and the Real Time Clock should always be set to "Chipset" for better
pertormance under protected mode operation.
DRAM Page Made
Select "Fast" for this option if the SIMM modules installed support Fast Page Mode.
IO Recovery Time
AT Bus VC Recovery Time, unless otherwise required, do not change the default setting.
Keyboard Clock Select
The Keyboard Clock should be maintain at around 8MHz to conform to the AT
standard.
AT Bus Cloc
The AT bus clock should be maintain at around 8MHz to conform to the AT standard.

System B/Os Configuration
System B/OS Configuration
17
DX-6900
16
DX-6900
Power Management Setup
to "PCLK/4" make the Standby Mode dock to 8MHz.
This system board is designed to fully support the SMM/SMI power management protocol. When
the Power Management Mode option is enabled, the system will enter into Standby and then
suspend(lnactive) mode after the length of time set at the Timer options when no system activities
VGA Power Control
The "Normal" setting will work for most of the VESA compliance VGA controllers. This
option will enable the system to blank the monitor screen when power saving mode is entered.
are detected.
IDE Standby Power Down Mode
IDE Power Control
This option is a BIOSs built-in function that does not require SMI to operate, however, if this
option is enabled and you experience erratic hard drive behavior, this option must be disabled.
t means that your harddisk does not support this BIOS function
The IDE Power Control supports hard drive that has such a feature, however, if this option is
enabled and you experience erratic hard drive behavior, this option must be disabled. This
option uses the SMM/SMI specification for hard drive power saving control.
Power Management Mode Select
APM Function
This option served as a master switch to turn-on the power management mode.
APM Function allows application that uses Advance Power Management interface to control
the system power management features when the system is installed with a SL-enhanced CPU.
Standby Timer Value
This
is
the first
stage
when the system
entered
into
the
power
management
mode.
You select
the number of minutes after which the system will enter the power saving Standby Mode when
no activities as defined under the monitors options listed below are detected. You may also use
the option Clock Out On Standby Mode" to select the specihic system speed in this mode.
Password Setting
Please refer to Section "Advance Setup", Subject "PassWord Checking" for detail information to
setup password.
Inactiveimer Value
Exiting Setup Utility
This is the second stage when the system entered into the power management mode. You select
the number of minutes after which the system will enter the power saving Inactive(Suspend)
Mode when no activities as defined under the monitors options listed below are detected. This
mode only function if a SL-Enhanced CPU is installed, since only a SL-Enhanced CPU can
support Stop-Clock (O MHz) operation.
At this point, you can either choose to confirm your setup entries and exit by using "ESC" key and
taking the "Save Changes & Exit" or the "Do Not Save & Exit" option to restore the original setup
parameters and exit.
After you highlight the desired option and press <<ENTER>>, the system will reset itself. The new
or original setup parameters, depend on the option which you have chosen, will become the curent
setting.
Sampling Activity Delay, & SMI Pulse Width
Unless otherwise required, do not change the default setting.
Monitor..Port Activity
Keyboard Turbo Switch
These options allow you to specily what activities the system should monitor which will either
prevent the system rom enter into power saving mode or wake-up the system from power
saving mode when activity is detected as defined in here.
After booting the system, you can select processor clock speed (Turbo or non-Turbo) by using
keyboard command in addition to use the front-panel switch.
Your system board has speed switching circuitry allowing it to change speed during operation, even
while you are running a program. To change the processor speed, use the following keyboard
Suspend/Resume Switch
combinations
IFthis option
is
enabled,
you may
use the JP23 to force the
system
into Inactive
Mode
immediately.
High
Speed <Ctrl> + <Alt> +
<+>
Low Speed:<Ctrl>
+ <Alt> *
<->
Clock Out On Standlby Mode
Define the system speed after the system entered into Standby Mode. The PCLK equal to the
CPU Clock -if you are using DX2-66MHz, you CPU CLK is 33MHz, setting this option