The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document, but no
guarantee is given as to the correctness of its contents. Our products are under
continual improvement and we reserve the right to make changes without notice.
Trademarks
All trademarks are the properties of their respective owners.
Intel® and Pentium® are registered trademarks of Intel Corporation.
AMD, Athlon™, Athlon™ XP, Thoroughbred™, and Duron™ are registered trademarks of AMD Corporation.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Windows® 95/98/2000/NT/XP are registered trademarks of Microsoft Corporation.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix Technologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.
Revision History
RevisionRevision HistoryDate
V1.1Updating CPU & chipsetNovember 2007
Technical Support
If a problem arises with your system and no solution can be obtained from the user’s
manual, please contact your place of purchase or local distributor. Alternatively,
please try the following help resources for further guidance.
Visit the MSI website at http://global.msi.com.tw/index.php?
func=faqIndex for FAQ, technical guide, BIOS updates, driver updates,
and other information.
Contact our technical staff at http://support.msi.com.tw/.
ii
Safety Instructions
1. Always read the safety instructions carefully.
2. Keep this User’s Manual for future reference.
3. Keep this equipment away from humidity.
4. Lay this equipment on a reliable flat surface before setting it up.
5. The openings on the enclosure are for air convection hence protects the equipment from overheating. DO NOT COVER THE OPENINGS.
6. Make sure the voltage of the power source and adjust properly 110/220V before connecting the equipment to the power inlet.
7. Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.
8. Always Unplug the Power Cord before inserting any add-on card or module.
9. All cautions and warnings on the equipment should be noted.
10.Never pour any liquid into the opening that could damage or cause electrical
shock.
11. If any of the following situations arises, get the equipment checked by service
personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment does not work well or you can not get it work according to
User’s Manual.
The equipment has dropped and damaged.
The equipment has obvious sign of breakage.
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT UNCONDITIONED, STORAGE TEMPERATURE ABOVE 600 C (1400F), IT MAY DAMAGE THE EQUIPMENT.
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
iii
FCC-B Radio Frequency Interference Statement
This equipment has been
tested and found to comply
with the limits for a Class B
digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the measures listed
below.
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
Consult the dealer or an experienced radio/television technician for help.
Notice 1
The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.
VOIR LA NOTICE D’ INSTALLATION AVANT DE RACCORDER AU RESEAU.
Micro-Star International
MS-9642
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
iv
WEEE (Waste Electrical and Electronic Equipment) Statement
processors in Socket M and supports one 240-pin 533/
667MHz DDR2 DIMM slot to provide the maximum of
2GB memory capacity.
In the entry-level and mid-range market segment, the
Fuzzy 945GM2/945GME2 can provide a high-performance solution for today’s front-end and general purpose workstation, as well as in the future.
1-1
MS-9642 Mainboard
Mainboard Specifications
Processor
- Intel® Core 2 Duo/Core Duo/Core Solo/Celeron M/Celeron LV
423 BGA (with BGA Passive Cooler) CPU in Socket M
- Supports 3 pin CPU Fan Pin-Header with Fan Speed Control
- Supports Intel Dual Core Technology to 533/667MHz and up
Chipset
- North Bridge: Intel® 945GM/ 945GME chipset
- South Bridge: Intel® ICH7M chipset
Memory
- DDR2 533/667 SDRAM (2GB Max)
- 1 DDR2 DIMM slot (240pin / 1.8V)
LAN
- Supports 3 PCI Express Gb Ethernet by Intel® 82573L or one
Intel® 82562GZ 10/100 LAN (optional)
Audio
- HDA Codec by Realtek® ALC888 7.1 channel
- Compliant with Azalia 1.0 Spec.
- 6 watt amplifier (optional)
IDE
- 1 IDE port by ICH7M
- Supports Ultra DMA 66/100 mode
- Supports PIO, Bus Master operation mode
SATA
- SATA ports by ICH7M
- Supports two SATA devices
- Supports storage and data transfers at up to 150MB/s
ImmunityEN 55024:1998+A1:2001+A2:2003Product family standard
BSMI
CNS 13438 乙類(1997年版)
AS/NZS CISPR 22:2004
C-Tick
FCC CFR Title 47 Part 15 Subpart B: 2005 Class B
FCC
CISPR 22: 2005
VCCI V-3:2004, Class B
VCCI
VCCI V-4:2004, Class B
Standard number
EN 55022:1998+A1:2000+A2:2003 Class BProduct family standard
EN 6100-3-2:2000 Class D
EN 6100-3-3:1995+A1:2001
fluctuation and flicker in low-
MTBF - Reliability Prediction
Calculation Model
Telcordia Issue 1
Operation
Temperature(°C)
40
Operation
Environment
GB, GC -
Ground Benign,
Controlled
Duty Cycle MTBF(hr.)
6,116.549285 163,491
1-9
MS-9642Mainboard
1-10
Hardware Setup
Chapter 2
Hardware Setup
This chapter provides you with the information about
hardware setup procedures. While doing the installation,
be careful in holding the components and follow the
installation procedures. For some components, if you
install in the wrong orientation, the components will not
work properly.
Use a grounded wrist strap before handling computer
components. Static electricity may damage the
components.
2-1
MS-9642 Mainboard
Quick Components Guide
Back Panel
I/O, p.2-8
PCI-E Slot,
p.2-18
J3, p.2-15
BIOS
JAUD1, p.2-11
JAMP1, p.2-11
ATX1, p.2-7
JCOMP4/5, p.2-17
CPU, p.2-3
PCI Slot, p.2-18
JLPT1, p.2-15
F_USB2, p.2-14
IDE1,
p.2-9
CLR_CMOS1, p.2-17
PCI-E Slot,
p.2-18
SATA1/2, p.2-10
CPUFAN1,
p.2-12
JFP1, p.2-12
J1, p.2-17
JLVDS1, p.2-16
DDRII DIMM,
p.2-6
JCI1,p.2-9
SYSFAN1,
p.2-12
J2, p.2-13
2-2
Hardware Setup
CPU (Central Processing Unit)
The mainboard supports Intel® Core 2 Duo/ Core Duo/ Core Solo/ Celeron M/
Celeron LV 423 BGA (with BGA Passive Cooler) processors in Socket M. When youare installing the CPU, make sure the CPU has a heat sink and a cooling fan
attached on the top to prevent overheating. If you do not have the heat sink and
cooling fan, contact your dealer to purchase and install them before turning on the
computer.
Important
1. Overheating will seriously damage the CPU and system. Always make
sure the cooling fan can work properly to protect the CPU from overheating.
2. Make sure that you apply an even layer of heat sink paste (or thermal tape)
between the CPU and the heatsink to enhance heat dissipation.
3. While replacing the CPU, always turn off the power supply or unplug the
power supply’s power cord from the grounded outlet first to ensure the
safety of CPU.
2-3
MS-9642 Mainboard
CPU & Cooler Set Installation
1.Place the CPU on top of the socket. Make sure to align the gold arrow on the CPU
with the arrow key on the socket.
2.Push the CPU down until its pins securely fit into the socket.
3.On the front end of the CPU socket is a
locking mechanism designed into the
form of a screw. Make sure that you
actuate or deactuate this mechanism
with a screwdriver before and after installing the CPU.
4.Release the metal clips on the retention
mechanism.
Important
Mainboard photos shown in this section are for demonstration only and may
differ from the actual look of your
mainboard.
2-4
Hardware Setup
5. Mount the cooler set (fan & heatsink
bundled) on top of the CPU and fit it into
the retention mechanism.
6. Secure the metal clips back to the
retention mechanism.
7. Connect the fan power cable from the
mounted fan to the 3-pin fan power connector on the mainboard.
2-5
MS-9642 Mainboard
Memory
The DIMM slots are intended for system memory modules.
DDR2
240-pin, 1.8V
Installing Memory Modules
1. The memory module has only one notch on the center and will only fit in the right
orientation.
2. Insert the memory module vertically into the DIMM slot. Then push it in until the
golden finger on the memory module is deeply inserted in the DIMM slot.
Important
You can barely see the golden finger if the memory module is properly inserted
in the DIMM slot.
3. The plastic clip at each side of the DIMM slot will automatically close.
64x2=128 pin56x2=112 pin
2-6
Volt
Notch
Hardware Setup
Power Supply
ATX 20-Pin System Power Connector: ATX1
This connector allows you to connect to an ATX power supply. To connect to the ATX
power supply, make sure the plug of the power supply is inserted in the proper
orientation and the pins are aligned. Then push down the power supply firmly into the
connector.
Power supply of 350watts (and above) is highly recommended for system
stability.
2-7
MS-9642 Mainboard
Back Panel
Serial Port
Mouse
LAN Port
Line-In
Line-Out
Mic-In
VGA Port
Serial Port Connector
The serial port is a 16550A high speed communications port that sends/ receives 16
bytes FIFOs. You can attach a serial mouse or other serial devices directly to the
connector.
VGA Connector
The DB15-pin female connector is provided for VGA monitors.
Mouse/Keyboard Connector
The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/keyboard.
USB Connectors
The OHCI (Open Host Controller Interface) Universal Serial Bus root is for attaching
USB devices such as keyboard, mouse, or other USB-compatible devices.
Audio Port Connectors
These audio connectors are used for audio devices. You can differentiate the color
of the audio jacks for different audio sound effects.
Blue audio jack - Line In is used for external CD player, tapeplayer or
Green audio jack - Line Out, is a connector for speakers or headphones.
Pink audio jack - Mic In, is a connector for microphones.
LAN (RJ-45) Jack
The standard RJ-45 jack is for connection
to single Local Area Network (LAN). You
can connect a network cable to it.
LED ColorLED StateCondition
Left Orange On (steady state)LAN link is established.
GreenOff10 Mbit/sec data rate is selected.
RightOn100 Mbit/sec data rate is selected.
Orange On1000 Mbit/sec data rate is selected.
KeyboardUSB Ports
other audio devices.
OffLAN link is not established.
On (brighter & pulsing)The computer is communicating with another computer on the LAN.
LAN Ports
Link IndicatorActivity Indicator
2-8
Hardware Setup
Connectors
Chassis Intrusion Connector: JCI1
This connector connects to the chassis intrusion switch cable. If the chassis is
opened, the chassis intrusion mechanism will be activated. The system will record
this status and show a warning message on the screen. To clear the warning, you
must enter the BIOS utility and clear the record.
1
CHASSIS
2
GND
JCI1
44-Pin IDE Connector: IDE1
This 44-pin IDE connector connects to an optional converter that enables connection
to one 44-pin IDE device and one 40-pin IDE device, such as hard disk drives, CDROM and other IDE devices.
Connect to 44-pin
IDE device
IDE1
Connect to IDE1
Connect to 40-pin
IDE device
Important
If you install two IDE devices on the same cable, you must configure the drives
separately to master / slave mode by setting jumpers. Refer to IDE device’s
documentation supplied by the vendors for jumper setting instructions.
2-9
MS-9642 Mainboard
Serial ATA Connectors: SATA1, SATA2
SATA1~SATA2 are high-speed SATA interface ports and support SATA data rates of
150MB/s. Each SATA connector can connect to 1 hard disk device and is fully compliant with Serial ATA 1.0 specifications.
SATA1
SATA2
Important
Please do not fold the Serial ATA cable into 90-degree angle. Otherwise,
data loss may occur during transmission.
2-10
Hardware Setup
Audio Amplifier Connector: JAMP1
The JAMP1 is used to connect audio amplifiers to enhance audio performance.
Pin Definition
JAMP1
1
PIN SIGNAL
1AMP_L2AMP_L+
3AMP_R4AMP_R+
Front Audio Connector: JAUD1
The JAUD1 connects to an optional audio bracket that provides extra front panel
audio IO jacks.
The fan power connectors support system cooling fan with +12V. When connecting
the wire to the connectors, always take note that the red wire is the positive and
should be connected to the +12V, the black wire is Ground and should be connected
to GND. If the mainboard has a System Hardware Monitor chipset on-board, you must
use a specially designed fan with speed sensor to take advantage of the CPU fan
control.
SENSOR
+12V
GND
CPUFAN1
SENSOR
+12V
GND
SYSFAN1
Important
Please refer to the recommended CPU fans at Intel® official website or consult
the vendors for proper CPU cooling fan.
Front Panel Connector: JFP1
The mainboard provides one front panel connector for electrical connection to the
front panel switches and LEDs. The JFP1 is compliant with Intel® Front Panel I/O
Connectivity Design Guide.
JFP1
9
10
-
Power
Switch++
Power
LED
JFP1 Pin Definition
PINSIGNALDESCRIPTION
1HD_LED +Hard disk LED pull-up
2FP PWR/SLPMSG LED pull-up
3HD_LED -Hard disk active LED
4FP PWR/SLPMSG LED pull-up
5RST_SW -Reset Switch low reference pull-down to GND
6PWR_SW +Power Switch high reference pull-up
7RST_SW +Reset Switch high reference pull-up
8PWR_SW -Power Switch low reference pull-down to GND
9RSVD_DNUReserved. Do not use.
+
Reset
Switch
-
-
HDD
LED
12
2-12
Hardware Setup
Serial Port Connector: J2
The J2 is a RS232/422/485 COM port pinheader that connects to serial devices.
J2
226
1
C
O
M
2
Voltage Select Serial Port Serial Port Voltage Select
The mainboard provides one USB 2.0 pinheader (optional USB 2.0 bracket available)
that is compliant with Intel® I/O Connectivity Design Guide. USB 2.0 technology increases data transfer rate up to a maximum throughput of 480Mbps, which is 40
times faster than USB 1.1, and is ideal for connecting high-speed USB interface
peripherals such as USB HDD, digital cameras, MP3 players, printers, mo-
dems and the like.
F_USB2
2
1
Pin Definition
PIN SIGNALPIN SIGNAL
1VCC2VCC
3USB0-4USB15USB0+6USB1+
7GND8GND
9Key (no pin)10 USBOC
10
9
USB 2.0 Bracket
(Optional)
Important
Note that the pins of VCC and GND must be connected correctly to avoid
possible damage.
2-14
Hardware Setup
Digital IO Connector: J3
The J3 connects to the General-Purpose Input/Output (GPIO) peripheral module.
The mainboard provides a 26-pin header for connection to an optional parallel port
bracket. The parallel port is a standard printer port that supports Enhanced Parallel
Port (EPP) and Extended Capabilities Parallel Port (ECP) mode.
The LVDS (Low Voltage Differential Signal) connector provides a digital interface
typically used with flat panels. After connecting an LVDS interfaced flat panel to the
JLVDS1, be sure to check the panel datasheet and set the J1 LVDS Power Selection
Jumper to a proper voltage.
After hardware installation is done,
select the LVDS panel type and tune
the LVDS backlight in the BIOS
Setup Utility.
2-16
Hardware Setup
Jumpers
LVDS Power Selection Jumper: J1
Use this jumper to specify the LVDS power.
1
J1
COM Port Power Jumpers: JCOMP4, JCOMP5
These jumpers specify the operation voltage of the serial port COM4 & COM5.
Pin Signal Name
1 VCC3
2 LCD_SRC (default VCC3)
3 VCC5
JCOMP4
3
JCOMP5
13
3
1
3
+5V
+5V
1
3
1
3
1
+12V
1
+12V
Clear CMOS Jumper: CLR_CMOS1
There is a CMOS RAM onboard that has a power supply from external battery to keep
the data of system configuration. With the CMOS RAM, the system can automatically
boot OS every time it is turned on. If you want to clear the system configuration, set
the CLR_CMOS1 (Clear CMOS Jumper ) to clear data.
1
CLR_CMOS1
1
3
Clear Data
1
3
Keep Data
Important
You can clear CMOS by shorting 1-2 pin while the system is off. Then return
to 2-3 pin position. Avoid clearing the CMOS while the system is on; it will
damage the mainboard.
PCI Express architecture provides a high performance I/O infrastructure for Desktop
Platforms with transfer rates starting at 2.5 Giga transfers per second over a PCI
Express x1 lane for Gigabit Ethernet, TV Tuners, 1394 controllers, and general purpose I/O. Also, desktop platforms with PCI Express Architecture will be designed to
deliver highest performance in video, graphics, multimedia and other sophisticated
applications. Moreover, PCI Express architecture provides a high performance graphics
infrastructure for Desktop Platforms doubling the capability of existing AGP 8x designs with transfer rates of 4.0 GB/s over a PCI Express x16 lane for graphics
controllers, while PCI Express x1 supports transfer rate of 250 MB/s.
PCI Express x16 Slot
PCI Express x1 Slot
PCI (Peripheral Component Interconnect) Slot
The PCI slot supports LAN cards, SCSI cards, USB cards, and other add-on cards
that comply with PCI specifications. At 32 bits and 33 MHz, it yields a throughput rate
of 133 MBps.
32-bit PCI Slot
PCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines
over which devices can send interrupt signals to the microprocessor. The PCI IRQ
pins are typically connected to the PCI bus pins as follows:
Order 1Order 2Order 3Order 4
32-bit PCI1INT A#INT B#INT C#INT D#
Important
When adding or removing expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card
to configure any necessary hardware or software settings for the expansion
card, such as jumpers, switches or BIOS configuration.
2-18
Chapter 3
BIOS Setup
This chapter provides information on the BIOS Setup
program and allows you to configure the system for
optimum use.
You may need to run the Setup program when:
² An error message appears on the screen during the
system booting up, and requests you to run SETUP.
² You want to change the default settings for cus-
tomized features.
BIOS Setup
3-1
MS-9642 Mainboard
Entering Setup
Power on the computer and the system will start POST (Power On Self Test) process.
When the message below appears on the screen, press <F1> key to enter Setup.
Press F1 to enter SETUP
If the message disappears before you respond and you still wish to enter Setup,
restart the system by turning it OFF and On or pressing the RESET button. You may
also restart the system by simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys.
Important
1.The items under each BIOS category described in this chapter are under
continuous update for better system performance. Therefore, the description may be slightly different from the latest BIOS and should be held for
reference only.
2.Upon boot-up, the 1st line appearing after the memory count is the BIOS
version. It is usually in the format:
P9642IMS V1.0 111507 where:
1st digit refers to BIOS maker as A = AMI, W = AWARD, and P =
PHOENIX.
2nd - 5th digit refers to the model number.
6th digit refers to the chipset as I = Intel, N = nVidia, and V = VIA.
7th - 8th digit refers to the customer as MS = all standard customers.
V1.0 refers to the BIOS version.
111507 refers to the date this BIOS was released.
3-2
BIOS Setup
Control Keys
<↑>Move to the previous item
<↓>Move to the next item
<←>Move to the item in the left hand
<→>Move to the item in the right hand
<Enter> Select the item
<Esc>Jumps to the Exit menu or returns to the main menu from a
<+/PU>Increase the numeric value or make changes
<-/PD>Decrease the numeric value or make changes
<F6>Load Optimized Defaults
<F7>Load Fail-Safe Defaults
<F10>Save all the CMOS changes and exit
submenu
Getting Help
After entering the Setup menu, the first menu you will see is theMain Menu.
Main Menu
The main menu lists the setup functions you can make changes to. You can use the
arrow keys ( ↑↓ ) to select the item. The on-line description of the highlighted setup
function is displayed at the bottom of the screen.
Sub-Menu
If you find a right pointer symbol (as shown in the right view)
appears to the left of certain fields that means a sub-menu can
be launched from this field. A sub-menu contains additional options for a field parameter. You can use arrow keys ( ↑↓ ) to
highlight the field and press <Enter> to call up the sub-menu. Then you can use the
control keys to enter values and move from field to field within a sub-menu. If you
want to return to the main menu, just press the <Esc >.
General Help <F1>
The BIOS setup program provides a General Help screen. You can call up this screen
from any menu by simply pressing <F1>. The Help screen lists the appropriate keys
to use and the possible selections for the highlighted item. Press <Esc> to exit the
Help screen.
3-3
MS-9642 Mainboard
The Menu Bar
Main
Use this menu for basic system configurations, such as time, date etc.
Advanced
Use this menu to set up the items of special enhanced features available on your
system’s chipset.
PC Health
This entry monitors your hardware health status.
Security
Use this menu to set Supervisor and User Passwords.
System
This entry shows your system summary.
Boot
Use this menu to specify the priority of boot devices.
Exit
This menu allows you to load the BIOS default values or factory default settings into
the BIOS and exit the BIOS setup utility with or without changes.
3-4
BIOS Setup
Main
Date (mm:dd:yy)
The date format is <Day>, <Month> <Date> <Year>.
Time (hh:mm:ss)
The time format is <Hour> <Minute> <Second>.
IDE Channel 0/1 Master/Slave
Press PgUp/<+> or PgDn/<-> to select [Manual], [None] or [Auto] type. Note that the
specifications of your drive must match with the drive table. The hard disk will not
work properly if you enter improper information for this category. If your hard disk
drive type is not matched or listed, you can use [Manual] to define your own drive
type manually.
If you select [Manual], related information is asked to be entered to the following
items. Enter the information directly from the keyboard. This information should be
provided in the documentation from your hard disk vendor or the system
manufacturer.
Access Mode The settings are CHS, LBA, Large, Auto.
CapacityThe formatted size of the storage device.
CylinderNumber of cylinders.
HeadNumber of heads.
PrecompWrite precompensation.
Landing Zone Cylinder location of the landing zone.
SectorNumber of sectors.
3-5
MS-9642 Mainboard
Halt On
The setting determines whether the system will stop if an error is detected at boot.
When the system stops for the errors preset, it will halt on for 15 seconds and then
automatically resume its operation. Available options are:
[All Errors]The system stops when any error is detected.
[No Errors]The system doesn’t stop for any detected error.
[All, But Keyboard]The system doesn’t stop for a keyboard error.
Base/Extended/Total Memory
The three items show the memory status of the system. (Read-only)
3-6
BIOS Setup
Advanced
Advanced BIOS Features
The sub-menu is used to configure chipset features for optimal system performance.
Quick Power On Self Test
Select [Enabled] to reduce the amount of time required to run the power-on self-
3-7
MS-9642 Mainboard
test (POST). A quick POST skips certain steps. We recommend that you normally disable quick POST. Better to find a problem during POST than lose data
during your work.
Boot Up NumLock Status
This setting is to set the Num Lock status when the system is powered on.
Setting to [On] will turn on the Num Lock key when the system is powered on.
Setting to [Off] will allow users to use the arrow keys on the numeric keypad.
Typematic Rate Setting
This item is used to enable or disable the typematic rate setting including Typematic
Rate & Typematic Delay.
Typematic Rate (Chars/Sec)
After Typematic Rate Setting is enabled, this item allows you to set the rate
(characters/second) at which the keys are accelerated.
Typematic Delay (Msec)
This item allows you to select the delay between when the key was first
pressed and when the acceleration begins.
APIC Mode
This field is used to enable or disable the APIC (Advanced Programmable Interrupt Controller). Due to compliance with PC2001 design guide, the system is
able to run in APIC mode. Enabling APIC mode will expand available IRQ resources for the system.
MPS Version Control For OS
This field allows you to select which MPS (Multi-Processor Specification) version to be used for the operating system. You need to select the MPS version
supported by your operating system. To find out which version to use, consult
the vendor of your operating system.
3-8
BIOS Setup
Advanced Chipset Features
The sub-menu is used to configure chipset features for optimal system performance.
DRAM Timing Selectable
Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module. Setting to [By SPD] enables DRAM timing to be
determined automatically by BIOS based on the configurations on the SPD.
Selecting [Manual] allows users to configure the following fields manually.
CAS Latency Time
This controls the timing delay (in clock cycles) before SDRAM starts a read
command after receiving it. Smaller clocks increase system performance while
bigger clocks provide more stable system performance.
DRAM RAS# to CAS# Delay
This field allows you to set the number of cycles for a timing delay between the
CAS and RAS strobe signals, used when DRAM is written to, read from or
refreshed. Fast speed offers faster performance while slow speed offers
more stable performance.
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.
Precharge Delay (tRAS)
The field specifies the idle cycles before precharging an idle bank.
3-9
MS-9642 Mainboard
System Memory Frequency
Use this item to configure the clock frequency of the installed DRAMs.
**VGA Setting**
The following items allow you to configure the VGA settings of the system.
PEG/Onchip VGA Control
This setting allows you to select whether to use the onchip graphics processor
or the PCI Express card.
When set to [Onchip VGA], the motherboard boots up using the onboard graphics processor, even when a PCI Express graphics card is installed.
When set to [PEG Port], the motherboard boots up using the PCI Express graphics card, if one is installed. Otherwise, it defaults to the onboard graphics
processor.
When set to [Auto], the BIOS checks to see if a PCI Express graphics card is
installed. If it detects that a PCI Express graphics card is present, the motherboard
boots up using that card. Otherwise, it defaults to the onboard graphics
processor.
On-Chip Frame Buffer Size
The field specifies the size of system memory allocated for video memory.
Boot Display
Use the field to select the type of device you want to use as the display(s) of
the system.
LVDS Panel Type
This setting specifies the resolution of the LVDS panel.
LVDS Backlight Control
This setting controls the brightness level of the LVDS panel backlight.
3-10
Integrated Peripherals
Onboard Device
BIOS Setup
USB Controller
This setting is used to enable/disable the onboard USB controller.
USB 2.0 Controller
This setting is used to enable/disable the onboard USB 2.0 controller.
USB Keyboard/Mouse Support
Set to [Enabled] if your need to use a USB-interfaced keyboard/mouse in the
3-11
MS-9642 Mainboard
operating system that does not support or have any USB driver installed,
such as DOS and SCO Unix.
Azalia/AC97 Audio Select
Azalia is the codename of “High Definition Audio.” This setting controls the
High Definition Audio interface integrated in the Southbridge.
Audio Amplifier Control
This setting disables/enables the audio amplifier.
Amplifier dB
When the Audio Amplifier Control is set to [Enabled], users may adjust
the amplifier dB range between the lowest useful output and the largest
useful output level.
Onboard Ethernet #1/ #2/ #3
These settings disable/enable the onboard Ethernet controller.
Onboard LAN1/ LAN2/ LAN3 Boot ROM
The items enable or disable the initialization of the onboard LAN Boot ROMs
during bootup. Selecting [Disabled] will speed up the boot process.
3-12
Super IO Device
Serial Port Setting
BIOS Setup
Onboard Serial Port 1 / 2 / 3 / 4 / 5
Select an address for Serial Port 1/2/3/4/5.
Serial Port 1 / 2 / 3 / 4 / 5 Use IRQ
Select a corresponding interrupt for Serial Port 1/2/3/4/5.
3-13
MS-9642 Mainboard
Serial Port 2 / 3 Mode
These settings specify the transmission mode of the Serial Port 2 & 3.
RS-422 defines a Balanced (differential) interface, specifying a single,
unidirectional driver with multiple receivers (up to 32). RS-422 will support
Point-to-Point, Multi-Drop circuits, but not Multi-Point.
RS-485 defines a Balanced (differential) interface, specifying bidirectional,
half-duplex data transmission. Up to 32 transmitters and 32 receivers may
be interconnected in any combination, including one driver and multiple
receivers (multi-drop), or one receiver and multiple drivers.
Watch Dog
You can enable the system watch-dog timer, a hardware timer that generates either an NMI or a reset when the software that it monitors does not
respond as expected each time the watch dog polls it.
Watch Dog Timer (Minutes)
Select the watch-dog timer period.
Onboard Parallel Port
There is a built-in parallel port on the on-board Super I/O chipset that provides Standard, ECP, and EPP features. It has the following options:
[Disabled]
[3BC/IRQ7]Line Printer port 0
[278/IRQ5]Line Printer port 2
[378/IRQ7]Line Printer port 1
Parallel Port Mode
[SPP]Standard Parallel Port
[EPP]Enhanced Parallel Port
[ECP]Extended Capability Port
[ECP + EPP]Extended Capability Port + Enhanced Parallel Port
To operate the onboard parallel port as Standard Parallel Port only, choose
[SPP]. To operate the onboard parallel port in the EPP mode simultaneously,
choose [EPP]. By choosing [ECP], the onboard parallel port will operate in
ECP mode only. Choosing [ECP + EPP] will allow the onboard parallel port to
support both the ECP and EPP modes simultaneously.
EPP Mode Select
The onboard parallel port is EPP Spec. compliant, so after the user chooses
the onboard parallel port with the EPP function, the following message will
be displayed on the screen: “EPP Mode Select.” At this time either [EPP 1.7]
spec or [EPP 1.9] spec can be chosen.
ECP Mode Use DMA
The ECP mode has to use the DMA channel, so choose the onboard parallel
port with the ECP feature. After selecting it, the following message will
appear: “ECP Mode Use DMA.” At this time, the user can choose between
DMA channel [3] or [1].
3-14
BIOS Setup
Chassis Intrusion Detect
The field enables or disables the feature of recording the chassis intrusion
status and issuing a warning message if the chassis is once opened. To
clear the warning message, set the field to [Reset]. The setting of the field
will automatically return to [Enabled] later.
Power 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].
ACPI Suspend Type
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 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,
[S3(STR)]The S3 sleep mode is a lower power state where the
no system context is lost (CPU or chipset) and hardware maintains all system context.
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.
3-15
MS-9642 Mainboard
Soft-Off by PWR-BTTNN
This feature allows users to configure the power button function. Settings are:
[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
USB KB Wake-Up from S3
This setting allows you to enter “Any Key” (max. 8 numbers) to wake up the
system from S3 state.
Resume By Alarm
When [Enabled], your can set the date and time at which the RTC (real-time
clock) alarm awakens the system from suspend mode.
Date (of Month) Alarm
When Resume By Alarm is set to [Enabled], the field specifies the month
for Resume By Alarm.
Time (hh:mm:ss) Alarm
You can choose what hour, minute and second the system will boot up.
PWRON After PWR-Fail
This item specifies whether your system will reboot after a power failure or
interrupt occurs. Available settings are:
suspend/sleep mode, but if the button is pressed for more
than four seconds, the computer is turned off.
[Off]Leaves the computer in the power off state.
[On]Leaves the computer in the power on state.
[Former-sts] Restores the system to the status before power fail-
ure or interrupt occurred.
3-16
PC Health
Smart Fan Setting
BIOS Setup
Smart System / CPU Fan Temp.
Select a temperature setting here, and if the temperature of the CPU/system
climbs up to the selected temperature setting, the system will automatically
3-17
MS-9642 Mainboard
increase the speed of the CPU/system fan to cool down the overheated CPU/
system.
System / CPU Temp Tolerance
You can select a fan tolerance value here for the specific range for the Smart
System / CPU Fan Temp. items. If the current temperatures of the fans reachthe maximum threshold (the temperatures set in the Smart System / CPU Fan
Temp. plus the tolerance values you set here), the fans will speed up for
cooling down. On the contrary if the current temperatures reach the minimum
threshold (the set temperatures minus the tolerance values), the fans will slow
down to keep the temperatures stable.
Current System Temp, Current CPU Temperature, System Fan Speed,
CPU Fan Speed, CPU Voltage, 12V, 5V, DDRII, VBAT (V), 5VSB (V)
These items display the current status of all of the monitored hardware devices/
components such as CPU voltage, temperatures and all fans’ speeds.
3-18
BIOS Setup
Security
Set Supervisor Password
Supervisor Password controls access to the BIOS Setup utility.
Set User Password
User Password controls access to the system at boot.
Security Option
This specifies the type of BIOS password protection that is implemented. Settings are
described below:
OptionDescription
[Setup]The password prompt appears only when end users try to run
[System]A password prompt appears every time when the computer is
Speed, System Memory Type, Video Controller, BIOS Date, BIOS Version
These items show the hardware specifications of your system. Read only.
3-20
BIOS Setup
Boot
Hard Disk Boot Priority
This setting allows users to set the boot priority of the specified hard disk devices.
First press <Enter> to enter the sub-menu. Then you may use the arrow keys ( ↑↓ )
to select the desired device, then press <+>, <-> or <PageUp>, <PageDown> key to
move it up/down in the priority list.
First / Second / Third Boot Device
The items allow you to set the sequence of boot devices where BIOS attempts to load
the disk operating system.
Boot Other Device
Setting the option to [Enabled] allows the system to try to boot from other device if the
system fails to boot from the first/second/third boot device.
3-21
MS-9642 Mainboard
Exit
Load Fail-Safe Defaults
Use this menu to load the default values set by the BIOS vendor for stable system
performance.
Load Optimized Defaults
Use this menu to load the default values set by the mainboard manufacturer specifically for optimal performance of the mainboard.
Save & Exit Setup
Save changes to CMOS and exit setup.
Exit Without Saving
Abandon all changes and exit setup.
3-22
System Resources
Chapter 4
System Resources
This chapter provides information on the following
system resources:
extrn WD_Timer_Item:near
mov si,offset MENUITEMGROUP:Watch_Dog_Item
call F000_GetItem_Value
test al, Watch_Dog_Cmos_bits
jz @F ;jump if disable
mov dx, 04Eh ;Enter config
mov al, 087h
out dx,al
NEWIODELAY
out dx,al
NEWIODELAY
mov al,07h ;Logical Device 8
mov dx, 04Eh
out dx,al
NEWIODELAY
mov ax,08h
inc dx
out dx,al
NEWIODELAY
mov al, 2Dh
mov dx, 04Eh
out dx,al
NEWIODELAY
inc dx
in al, dx
and al, 0FEh
out dx,al
NEWIODELAY
mov al, 0F5h ;For By Pass
mov dx, 04Eh
out dx,al
NEWIODELAY
mov al,08h
inc dx
out dx,al
NEWIODELAY
4-2
WD_reboot:
mov si,offset MENUITEMGROUP:WD_Timer_Item
call F000_GetItem_Value
mov ah, al
mov al,0F6h ;Set time
mov dx, 04Eh
out dx,al
NEWIODELAY
mov al, ah ;fill time 9641_046
inc dx
out dx,al
NEWIODELAY
mov dx, 04Eh ;Exit config
mov al, 0AAh
out dx, al
NEWIODELAY
@@:
endif ;Superio_Support_Watch_Dog
System Resources
4-3
MS-9642 Mainboard
tialize the hard drive controller
Award POST Code
Award BIOS Error Message and Check Point (POST code) List (Need to be
modified, TBD)
•Error/Process Message.
# Short Name Description Possible FRUS
1 CMOS
checksum error
- Defaults
loaded
2 CPU at nnnn Displays the running speed of the CPU. processor
3 Press ESC to
skip memory
test
4 Floppy disk(s)
fail
5 HARD DISK
initializing
Please wait a
moment
6 HARD DISK
INSTALL
FAILURE
7 Keyboard error
or no keyboard
present
8 Memory Test: This message displays during a full
Checksum of CMOS is incorrect, so the
system loads the default equipment
configuration. A checksum error may
indicate that CMOS has become corrupt.
This error may have been caused by a
weak battery. Check the battery and
replace if necessary.
The user may press Esc to skip the full
memory test.
Cannot find or initialize the floppy drive
controller or the drive. Make sure the
controller is installed correctly. If no floppy
drives are installed, be sure the Diskette
Drive selection in Setup is set to NONE or
AUTO.
Some hard drives require extra time to
initialize.
Cannot find or ini
or the drive. Make sure the controller is
installed correctly. If no hard drives are
installed, be sure the Hard Drive selection in
Setup is set to NONE.
Cannot initialize the keyboard. Make sure
the keyboard is attached correctly and no
keys are pressed during POST. To
purposely configure the system without a
keyboard, set the error halt condition in
Setup to HALT ON ALL, BUT KEYBOARD.
The BIOS then ignores the missing
keyboard during POST.
memory test, counting down the memory
areas being tested.
System board
System board
system board
System board
System board
System board
DIMM
System board
4-4
• Check Point List
POST (hex) Description
CFh Test CMOS R/W functionality.
C0h Early chipset initialization:
C1h Detect memory
A1h Set Initial Conditions (Default Values) in EBP
A2h Determine FSB frequency.
A3h Begin Detection of installed DIMMS
A4h Check for Column Latency
A5h 200Mhz or 266Mhz
A6h Check for tRAS timing
A7h Check for tRP timing
A8h Check for tRCD timing
A9h Check for ECC Support
AAh Check for refresh timing
ABh Verify that the DIMM's are in matched pairs
C3h Expand compressed BIOS code to DRAM
C5h Call chipset hook to copy BIOS back to E000 & F000 shadow
01h Expand the Xgroup codes locating in physical address 1000:0
02h Reserved
03h Initial Superio_Early_Init switch.
04h Reserved
05h 1. Blank out screen
06h Reserved
07h 1. Clear 8042 interface
08h 1. Test special keyboard controller for Winbond 977 series Super
2Eh Reserved
2Fh Reserved
30h Reserved
31h Reserved
32h Reserved
33h Reset keyboard except Winbond 977 series Super I/O chips.
34h Reserved
35h Reserved
36h Reserved
37h Reserved
38h Reserved
39h Reserved
3Ah Reserved
3Bh Reserved
3Ch Test 8254
3Dh Reserved
3Eh Test 8259 interrupt mask bits for channel 1.
3Fh Reserved
40h Test 8259 interrupt mask bits for channel 2.
41h Reserved
42h Reserved
43h Test 8259 functionality.
44h Reserved
45h Reserved
46h Reserved
47h Initialize EISA slot
48h Reserved
49h 1. Calculate total memory by testing the last double word of each 64K page.
4Ah Reserved
4Bh Reserved
4Ch Reserved
4Dh Reserved
4Eh 1. Program MTRR of M1 CPU
4Fh Reserved
2. Put information on screen display, including Award title, CPU type, CPU speed
….
2. Program write allocation for AMD K5 CPU.
2. Initialize L2 cache for P6 class CPU & program CPU with proper cacheable
range.
3. Initialize the APIC for P6 class CPU.
4. On MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical.
4-7
MS-9642 Mainboard
Auto assign ports to onboard COM ports if the corresponding item in Setup
50h Initialize USB
51h Reserved
52h Test all memory (clear all extended memory to 0)
53h Reserved
54h Reserved
55h Display number of processors (multi-processor platform)
56h Reserved
57h 1. Display PnP logo
74h Reserved
75h Detect & install all IDE devices: HDD, LS120, ZIP, CDROM…..
2. Early ISA PnP initialization
-Assign CSN to every ISA PnP device.
Show message for entering AWDFLASH.EXE from FDD (optional)
2. Initialize Init_Onbaord_AUDIO switch.
enter the CMOS setup utility.
INT 15h ax=E820h
Auto-configuration table.
2.
is set to “AUTO”.
2. Set up floppy related fields in 40:hardware.
Enter AWDFLASH.EXE if :
-AWDFLASH is found in floppy drive.
-ALT+F2 is pressed
4-8
76h Reserved
77h Detect serial ports & parallel ports.
78h Reserved
79h Reserved
7Ah Detect & install co-processor
7Bh Reserved
7Ch Reserved
7Dh Reserved
7Eh Reserved
7Fh 1. Switch back to text mode if full screen logo is supported.
-If no errors occur or F1 key is pressed to continue:
wClear EPA or customization logo.
2. Recover the text fond used by EPA logo (not for full screen logo)
3. If password is set, ask for password.
2. NET PC: Build SYSID structure
3. Switch screen back to text mode
4. Set up ACPI table at top of memory.
5. Invoke ISA adapter ROMs
6. Assign IRQs to PCI devices
7. Initialize APM
8. Clear noise of IRQs.
2. Program boot up speed
3. Chipset final initialization.
4. Power management final initialization
5. Clear screen & display summary table
6. Program K6 write allocation
7. Program P6 class write combining
2. Update keyboard LED & typematic rate
2. Build & update ESCD
3. Set CMOS century to 20h or 19h
4. Load CMOS time into DOS timer tick
5. Build MSIRQ routing table.
System Resources
4-9
MS-9642 Mainboard
Check Point & Beep Code List
Bootblock Initialization Code Checkpoints
Checkpoint Description
Before D0 If boot block debugger is enabled, CPU cache-as-RAM functionality is enabled at this
point. Stack will be enabled from this point.
D0 Early Boot Strap Processor (BSP) initialization like microcode update, frequency and
other CPU critical initialization. Early chipset initialization is done.
D1 Early super I/O initialization is done including RTC and keyboard controller. Serial port
is enabled at this point if needed for debugging. NMI is disabled. Perform keyboard
controller BAT test. Save power-on CPUID value in scratch CMOS. Go to flat mode with
4GB limit and GA20 enabled.
D2 Verify the boot block checksum. System will hang here if checksum is bad.
D3 Disable CACHE before memory detection. Execute full memory sizing module. If
memory sizing module not executed, start memory refresh and do memory sizing in
Boot block code. Do additional chipset initialization. Re-enable CACHE. Verify that flat
mode is enabled.
D4 Test base 512KB memory. Adjust policies and cache first 8MB. Set stack.
D5 Bootblock code is copied from ROM to lower system memory and control is given to it.
BIOS now executes out of RAM. Copies compressed boot block code to memory in
right segments. Copies BIOS from ROM to RAM for faster access. Performs main BIOS
checksum and updates recovery status accordingly.
D6 Both key sequence and OEM specific method is checked to determine if BIOS recovery
is forced. If BIOS recovery is necessary, control flows to checkpoint E0. See Bootblock
Recovery Code Checkpoints section of document for more information.
D7 Restore CPUID value back into register. The Bootblock-Runtime interface module is
moved to system memory and control is given to it. Determine whether to execute serial
flash.
D8 The Runtime module is uncompressed into memory. CPUID information is stored in
memory.
D9 Store the Uncompressed pointer for future use in PMM. Copying Main BIOS into
memory. Leaves all RAM below 1MB Read-Write including E000 and F000 shadow
areas but closing SMRAM.
DA Restore CPUID value back into register. Give control to BIOS POST
(ExecutePOSTKernel). See POST Code Checkpoints section of document for more
information.
DC System is waking from ACPI S3 state
E1-E8
OEM memory detection/configuration error. This range is reserved for chipset vendors
EC-EE
& system manufacturers. The error associated with this value may be different from one
platform to the next.
4-10
System Resources
Bootblock Recovery Code Checkpoints
Checkpoint Description
E0 Initialize the floppy controller in the super I/O. Some interrupt vectors are initialized.
DMA controller is initialized. 8259 interrupt controller is initialized. L1 cache is
enabled.
E9 Set up floppy controller and data. Attempt to read from floppy.
EA Enable ATAPI hardware. Attempt to read from ARMD and ATAPI CDROM.
EB Disable ATAPI hardware. Jump back to checkpoint E9.
EF Read error occurred on media. Jump back to checkpoint EB.
F0 Search for pre-defined recovery file name in root directory.
F1 Recovery file not found.
F2 Start reading FAT table and analyze FAT to find the clusters occupied by the recovery
file.
F3 Start reading the recovery file cluster by cluster.
F5 Disable L1 cache.
FA Check the validity of the recovery file configuration to the current configuration of the
flash part.
FB Make flash write enabled through chipset and OEM specific method. Detect proper
flash part. Verify that the found flash part size equals the recovery file size.
F4 The recovery file size does not equal the found flash part size.
FC Erase the flash part.
FD Program the flash part.
FF The flash has been updated successfully. Make flash write disabled. Disable ATAPI
hardware. Restore CPUID value back into register. Give control to F000 ROM at
F000:FFF0h.
4-11
MS-9642 Mainboard
POST Code Checkpoints
Checkpoint Description
03 Disable NMI, Parity, video for EGA, and DMA controllers. Initialize BIOS, POST,
04 Check CMOS diagnostic byte to determine if battery power is OK and CMOS checksum
05 Initializes the interrupt controlling hardware (generally PIC) and interrupt vector table.
06 Do R/W test to CH-2 count reg. Initialize CH-0 as system timer. Install the POSTINT1Ch
07 Fixes CPU POST interface calling pointer.
08 Initializes the CPU. The BAT test is being done on KBC. Program the keyboard
C0 Early CPU Init Start -- Disable Cache – Init Local APIC
C1 Set up boot strap processor Information
C2 Set up boot strap processor for POST
C5 Enumerate and set up application processors
C6 Re-enable cache for boot strap processor
C7 Early CPU Init Exit
0A Initializes the 8042 compatible Key Board Controller.
0B Detects the presence of PS/2 mouse.
0C Detects the presence of Keyboard in KBC port.
0E Testing and initialization of different Input Devices. Also, update the Kernel Variables.
13 Early POST initialization of chipset registers.
20 Relocate System Management Interrupt vector for all CPU in the system.
24 Uncompress and initialize any platform specific BIOS modules. GPNV is initialized at
Runtime data area. Also initialize BIOS modules on POST entry and GPNV area.
Initialized CMOS as mentioned in the Kernel Variable "wCMOSFlags."
is OK. Verify CMOS checksum manually by reading storage area. If the CMOS
checksum is bad, update CMOS with power-on default values and clear passwords.
Initialize status register A.
Initializes data variables that are based on CMOS setup questions. Initializes both the
8259 compatible PICs in the system
handler. Enable IRQ-0 in PIC for system timer interrupt. Traps INT1Ch vector to
"POSTINT1ChHandlerBlock."
controller command byte is being done after Auto detection of KB/MS using AMI KB-5.
Traps the INT09h vector, so that the POST INT09h handler gets control for IRQ1.
Uncompress all available language, BIOS logo, and Silent logo modules.
this checkpoint.
4-12
System Resources
2A Initializes different devices through DIM.
2C Initializes different devices. Detects and initializes the video adapter installed in the
2E Initializes all the output devices.
31 Allocate memory for ADM module and uncompress it. Give control to ADM module for
33 Initializes the silent boot module. Set the window for displaying text information.
37 Displaying sign-on message, CPU information, setup key message, and any OEM
38 Initializes different devices through DIM. See DIM Code Checkpoints section of
39 Initializes DMAC-1 & DMAC-2.
3A Initialize RTC date/time.
3B Test for total memory installed in the system. Also, Check for DEL or ESC keys to limit
3C Mid POST initialization of chipset registers.
40 Detect different devices (Parallel ports, serial ports, and coprocessor in CPU, … etc.)
52 Updates CMOS memory size from memory found in memory test. Allocates memory for
60 Initializes NUM-LOCK status and programs the KBD typematic rate.
75 Initialize Int-13 and prepare for IPL detection.
78 Initializes IPL devices controlled by BIOS and option ROMs.
7C Generate and write contents of ESCD in NVRam.
84 Log errors encountered during POST.
85 Display errors to the user and gets the user response for error.
87 Execute BIOS setup if needed / requested. Check boot password if installed.
8C Late POST initialization of chipset registers.
8D Build ACPI tables (if ACPI is supported)
8E Program the peripheral parameters. Enable/Disable NMI as selected
See DIM Code Checkpoints section of document for more information.
system that has optional ROMs.
initialization. Initialize language and font modules for ADM. Activate ADM module.
specific information.
document for more information. USB controllers are initialized at this point.
memory test. Display total memory in the system.
successfully installed in the system and update the BDA, EBDA…etc.
Extended BIOS Data Area from base memory. Programming the memory hole or any
kind of implementation that needs an adjustment in system RAM size if needed.
4-13
MS-9642 Mainboard
90 Initialization of system management interrupts by invoking all handlers. Please note this
A1 Clean-up work needed before booting to OS.
A2 Takes care of runtime image preparation for different BIOS modules. Fill the free area in
A4 Initialize runtime language module. Display boot option popup menu.
A7 Displays the system configuration screen if enabled. Initialize the CPU ’s before boot,
A9 Wait for user input at config display if needed.
AA Uninstall POST INT1Ch vector and INT09h vector.
AB Prepare BBS for Int 19 boot. Init MP tables.
AC End of POST initialization of chipset registers. De-initializes the ADM module.
B1 Save system context for ACPI. Prepare CPU for OS boot including final MTRR values.
00 Passes control to OS Loader (typically INT19h).
checkpoint comes right after checkpoint 20h
F000h segment with 0FFh. Initializes the Microsoft IRQ Routing Table. Prepares the
runtime language module. Disables the system configuration display if needed.
which includes the programming of the MTRR’s.
4-14
System Resources
Beep Codes
Boot Block Beep Codes
Number of Beeps Description
1 Insert diskette in floppy drive A:
2 ‘AMIBOOT.ROM’ file not found in root directory of diskette in A:
3 Base Memory error
4 Flash Programming successful
5 Floppy read error
6 Keyboard controller BAT command failed
7 No Flash EPROM detected
8 Floppy controller failure
9 Boot Block BIOS checksum error
10 Flash Erase error
11 Flash Program error
12 ‘AMIBOOT.ROM’ file size error
13 BIOS ROM image mismatch (file layout does not match image present in flash
device)
POST BIOS Beep Codes
Number of Beeps Description
1 Memory refresh timer error.
2 Parity error in base memory (first 64KB block)
3 Base memory read/write test error
4 Motherboard timer not operational
5 Processor error
6 8042 Gate A20 test error (cannot switch to protected mode)
7 General exception error (processor exception interrupt error)
8 Display memory error (system video adapter)
9 AMIBIOS ROM checksum error
10 CMOS shutdown register read/write error
11 Cache memory test failed
4-15
MS-9642 Mainboard
Troubleshooting POST BIOS Beep Codes
Number of Beeps Troubleshooting Action
1, 2 or 3 Reseat the memory, or replace with known good modules.
4-7, 9-11 Fatal error indicating a serious problem with the system. Consult your system
8
manufacturer. Before declaring the motherboard beyond all hope, eliminate the
possibility of interference by a malfunctioning add-in card. Remove all expansion
cards except the video adapter.
‧ If beep codes are generated when all other expansion cards are absent, consult
your system manufacturer’s technical support.
‧ If beep codes are not generated when all other expansion cards are absent, one
of the add-in cards is causing the malfunction. Insert the cards back into the
system one at a time until the problem happens again. This will reveal the
malfunctioning card.
If the system video adapter is an add-in card, replace or reseat the video adapter.
If the video adapter is an integrated part of the system board, the board may be
faulty.