MI941 LGA775 Core™ 2 Duo Intel® G41 Chipset Mini-ITX Motherboard USER’S MANUAL Version 1.
Acknowledgments AMI is a registered trademark of American Megatrends, Inc. PS/2 is a trademark of International Business Machines Corporation. Intel is a trademark or registered trademark of Intel Corporation. Microsoft Windows is a registered trademark of Microsoft Corporation. Winbond is a registered trademark of Winbond Electronics Corporation. All other product names or trademarks are properties of their respective owners.
Table of Contents Introduction ....................................................... 1 Checklist .............................................................................. 1 Product Description ............................................................. 2 Specifications ...................................................................... 3 Board Dimensions ............................................................... 4 Installations .......................................................
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INTRODUCTION Introduction Checklist Your MI941 Core 2 Duo motherboard package should include the items listed below: • The MI941 motherboard • This User’s manual • 1 x I/O shield • 1 x IDE cable • 1 x SATA cable • 1 CD containing the following: • Chipset Drivers • Flash Memory Utility MI941 User’s Manual 1
INSTALLATIONS Product Description The MI941 Mini-ITX motherboard is designed for either the Intel® Core™2 Duo or Core™2 Quad processors of up to 1333MHz FSB. It is based on the Intel G41 Express chipset and it comes with two dual-channel DDR3 memory slots and 4GB memory capacity for faster system responsiveness and support of 64-bit computing. Dual independent display comes to life with the onboard Intel® G41 integrated graphics with CRT and DVI display interface.
INTRODUCTION Specifications Form Factor Processor FSB Chipset BIOS Memory Video LAN USB SATA II IDE Audio LPC I/O Hardware Monitor Edge Connectors On Board Headers / Connectors Expansion RTC Watchdog Timer Digital IO Other Power Connector System Voltage RoHS Compliant Board Size Mini ITX Supports Intel® Core TM 2 Quad /Core TM 2 Duo/ Celeron® processor LGA775 socket 800/1066/1333 MHz Intel® G41 Chipset consisting of: Intel® 82G41 Graphic Memory Controller Hub (GMCH) (25W) Intel® 82801GB (ICH7) I/O Co
INSTALLATIONS Board Dimensions 4 MI941 User’s Manual
INSTALLATIONS Installations This section provides information on how to use the jumpers and connectors on the MI941 in order to set up a workable system. The topics covered are: Installing the CPU ................................................................................. 6 ATX Power Installation ......................................................................... 6 Installing the Memory ........................................................................... 7 Setting the Jumpers............
INSTALLATIONS Installing the CPU The MI941 motherboard supports an LGA 775 processor socket for Intel® Core 2 Duo processors. The LGA 775 processor socket comes with a lever to secure the processor. Refer to the pictures below, from left to right, on how to place the processor into the CPU socket. Please note that the cover of the LGA775 socket must always be installed during transport to avoid damage to the socket.
INSTALLATIONS Installing the Memory The MI941 motherboard supports two DDR3 memory sockets for a maximum total memory of 4GB. It supports DDR3 800/1066MHz. Basically, the system memory interface has the following features: Supports two 64-bit wide DDR data channels Available bandwidth up to 6.4GB/s (DDR3 1066) for two-channel mode. Supports 512Mb, 1Gb DDR3 technologies.
INSTALLATIONS Setting the Jumpers Jumpers are used on the motherboard are used to select various settings and features according to your needs and applications. Contact your supplier if you have doubts about the best configuration for your needs. The following lists the connectors and their respective functions. Jumper Locations on MI941 .................................................................. 9 JP1, JP2, JP3: RS232/422/485 (COM2) Selection ..............................
INSTALLATIONS Jumper Locations on MI941 JP1, JP2, JP3: RS232/422/485 (COM2) Selection .............................. 10 JP6: Clear CMOS Contents .................................................................
INSTALLATIONS JP1, JP2, JP3: RS232/422/485 (COM2) Selection COM2 is selectable for RS232, RS-422 and RS-485. COM2 Function Jumper Setting (pin closed) RS-232 RS-422 RS-485 JP1: 1-2 JP1: 3-4 JP1: 5-6 JP2: 3-5 & 4-6 JP2: 1-3 & 2-4 JP2: 1-3 & 2-4 JP3: 3-5 & 4-6 JP3: 1-3 & 2-4 JP3: 1-3 & 2-4 JP6: Clear CMOS Contents Use JP6, a 3-pin header, to clear the CMOS contents. Note that the ATX-power connector should be disconnected from the motherboard before clearing CMOS.
INSTALLATIONS Connectors on MI941 The connectors on MI941 allow you to connect external devices such as keyboard, floppy disk drives, hard disk drives, printers, etc. The following table lists the connectors on MI941 and their respective functions. ATX2: 24-pin ATX Power Connector ................................................ 13 ATX1: ATX 12V Power Connector .................................................... 13 DDRIII1: Channel A DDR3 Socket ....................................................
INSTALLATIONS Connector Locations on MI941 ATX2: 24-pin ATX Power Connector ................................................................................................... 13 ATX1: ATX 12V Power Connector ....................................................................................................... 13 DDRIII1: Channel A DDR3 Socket ....................................................................................................... 13 DDRIII2: Channel B DDR3 Socket ..........................
INSTALLATIONS ATX2: 24-pin ATX Power Connector Signal Name 3.3V -12V Ground PS-ON Ground Ground Ground -5V +5V +5V +5V Ground Pin # 13 14 15 16 17 18 19 20 21 22 23 24 Pin # 1 2 3 4 5 6 7 8 9 10 11 12 Signal Name 3.3V 3.3V Ground +5V Ground +5V Ground Power good 5VSB +12V +12V +3.3V ATX1: ATX 12V Power Connector This connector supplies the CPU operating voltage.
INSTALLATIONS SYS_FAN2: System Fan2 Power Connector Pin # 1 2 3 Signal Name Ground +12V Rotation detection CN1: Serial Ports(COM1) CN1 (COM1) is a DB-9 connector, Signal Name DCD, Data carrier detect RXD, Receive data TXD, Transmit data DTR, Data terminal ready GND, ground Pin # 1 2 3 4 5 Pin # 6 7 8 9 10 Signal Name DSR, Data set ready RTS, Request to send CTS, Clear to send RI, Ring indicator Not Used J2: COM2 is jumper selectable for RS-232, RS-422 and RS-485.
INSTALLATIONS CN5: Gigabit LAN (Intel 82583V) RJ-45 &USB 0/1 Connector CN6: DVI-D+CRT Connector Signal Name Red Blue GND GND VCC N.C. HSYNC DDCCLK Pin # 1 3 5 7 9 11 13 15 Pin # Signal Name 2 Green 4 N.C. 6 GND 8 GND 10 GND 12 DDCDATA 14 VSYNC Signal Name DATA2GND N.C. DDCDATA DATA1GND N.C. GND Pin # 1 3 5 7 9 11 13 15 DATA0GND N.C. CLK+ 17 19 21 23 Pin # Signal Name 2 DATA2+ 4 N.C. 6 DDCCLK 8 N.C. 10 DATA1+ 12 N.C. 14 VCC 16 Hot Plug Detect 18 DATA0+ 20 N.C.
INSTALLATIONS CN12: PS/2 Keyboard and PS/2 Mouse Connectors Keyboard Signal Pin # Mouse Signal Keyboard data 1 Mouse data N.C. 2 N.C. GND 3 GND 5V 4 5V Mouse (top) Keyboard clock 5 Mouse clock Keyboard (bottom) N.C. 6 N.C. CN13: Audio Connector CN13 is a 3-jack audio connector.
INSTALLATIONS J5: SPI Debug Tools Port (Factory use only) J8: Power LED The power LED indicates the status of the main power switch. Pin # 1 2 3 Signal Name Power LED No connect Ground J9: System Function Connector ATX Power ON Switch: Pins 1 and 2 This 2-pin connector is an “ATX Power Supply On/Off Switch” on the system that connects to the power switch on the case. When pressed, the power switch will force the system to power on. When pressed again, it will force the system to power off.
INSTALLATIONS J10: USB 4/5 Connector Signal Name Vcc D0D0+ Ground Pin 1 3 5 7 Pin 2 4 6 8 Signal Name Ground D1+ D1Vcc J11: For LPC I/F Adaptor Card J13: Audio Front Header Signal Name Pin # MIC2_L 1 MIC2_R 3 Line2_R 5 Sense 7 Line2_L 9 Pin # 2 4 6 8 10 IDE1: Primary IDE Connectors Signal Name Pin # Reset IDE 1 Host data 7 3 Host data 6 5 Host data 5 7 Host data 4 9 Host data 3 11 Host data 2 13 Host data 1 15 Host data 0 17 Ground 19 DRQ0 21 Host IOW 23 Host IOR 25 IOCHRDY 27 DACK0 29 IRQ14 31 Addre
BIOS SETUP BIOS Setup This chapter describes the different settings available in the AMI (American Megatrends, Inc.) BIOS that comes with the board. The topics covered in this chapter are as follows: BIOS Introduction ............................................................................... 20 BIOS Setup .......................................................................................... 21 Main BIOS Setup ................................................................................
BIOS SETUP BIOS Introduction This chapter describes the different settings available in the AMI (American Megatrends, Inc.) BIOS that comes with the board. The topics covered in this chapter are as follows: BIOS Introduction ............................................................................... 20 BIOS Setup .......................................................................................... 21 Main BIOS Setup .................................................................................
BIOS SETUP BIOS Introduction The BIOS (Basic Input/Output System) installed in your computer system’s ROM supports Intel processors. The BIOS provides critical low-level support for a standard device such as disk drives, serial ports and parallel ports. It also adds virus and password protection as well as special support for detailed fine-tuning of the chipset controlling the entire system. BIOS Setup The BIOS provides a Setup utility program for specifying the system configurations and settings.
BIOS SETUP Main BIOS Setup This setup allows you to record some basic hardware configurations in your computer system and set the system clock. BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Chipset Exit System Overview Processor Intel(R) Core(TM)2 Duo CPU Speed : 2666MHz Count :1 T9400 @ 266GHz Use[ENTER], [TAB] or [SHIFT-TAB] to select a field. Use [+] or [-] to configure system Time.
BIOS SETUP Advanced Settings This section allows you to configure and improve your system and allows you to set up some system features according to your preference. BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Advanced Settings Chipset Exit Configure CPU. WARNING: Setting wrong values in below sections may cause system to malfunction.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Configure advanced CPU settings Manufacturer: Intel Intel® Core(TM)2 Duo CPU Frequency : 2.66GHz FSB Speed : 1332MHz Cache L1 : 128KB Cache L2 : 6144KB Ratio Actual Value: 8 Hardware Prefetcher Adjacent Cache Line Prefetch Max CPU ID Value Limit Intel(R) Virtualization Tech Chipset Exit Configure CPU. T9400 @ 2.
BIOS SETUP Adjacent Cache-Line Prefetch The Adjacent Cache-Line Prefetch mechanism, like automatic hardware prefetch, operates without programmer intervention. When enabled through the BIOS, two 64-byte cache lines are fetched into a 128-byte sector, regardless of whether the additional cache line has been requested or not. In applications with relatively poor spatial locality, the cache miss ratio is higher.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security IDE Configuration ATA/IDE Configuration Legacy IDE Channels [Compatible] [SATA Pri, PATA Sec] Primary IDE Master Primary Slave Master ► Secondary IDE Master ► Secondary IDE Slave : [Not Detected] : [Not Detected] : [Hitachi HDS72] : [Not Detected] IDE Detect Time Out (Sec) [35] ► ► Chipset Exit Options: Disabled Compatible Enhanced <- Select Screen ↑↓ +Tab F1 F10 ESC Select Item Change Field Select Field General Help Save and
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Hardware Health Configuration Chipset Exit Configure CPU. System Temperature CPU Temperature VTIN Temperature :35°C/95°F :34°C/93°F :37°C/98°F SystemFan2 Speed CPUFAN Speed :0 RPM :2280 RPM Vcore(V) 3VCC 12V 5V VBAT (V) CPU smart fan :1.160 V :3.392 V :12.196 V : 5.273V :3.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security General ACPI Configuration Suspend mode Repost Video on S3 Resume [S3 (STR)] [No] Suspend Mode The options of this field are S1, S3 and Auto. Repost Video on S3 Resume The default setting is No.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security APM Configuration Power Management/APM [Enabled] Resume On Ring Resume On PME# Resume On RTC Alarm Disabled Disabled Disabled Chipset Exit Disable/Enable RI to generate a wake event. <- Select Screen ↑↓ +Tab F1 F10 ESC Select Item Change Field Select Field General Help Save and Exit Exit Resume on Ring This option is used to enable activity on the RI (ring in) modem line to wake up the system from a suspend or standby state.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security MPS Configuration MPS Revision VT-d Chipset Exit Select MPS Revision [1.1] <- Select Screen ↑↓ +Tab F1 F10 ESC Select Item Change Field Select Field General Help Save and Exit Exit MPS Version Control for OS This option is specifies the MPS (Multiprocessor Specification) version for your operating system.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security USB Configuration Exit Enables support for legacy USB. AUTO option disables legacy support if no USB devices are connected. USB Devices Enabled: None Legacy USB Support USB 2.
BIOS SETUP PCIPnP Settings This option configures the PCI/PnP settings. BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Advanced PCI/PnP Settings WARNING: Setting wrong values in below sections may cause system to malfunction.
BIOS SETUP Allocate IRQ to PCI VGA This assigns IRQ to PCI VGA card if card requests IRQ or doesn't assign IRQ to PCI VGA card even if card requests an IRQ. Palette Snooping This informs the PCI devices that an ISA graphics device is installed in the system so the card will function correctly. PCI IDE BusMaster This uses PCI busmastering for BIOS reading / writing to IDE devices. OffBoard PCI/ISA IDE Card Some PCI IDE cards may require this to be set to the PCI slot number that is holding the card.
BIOS SETUP Boot Settings BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Boot Settings Configuration Quick Boot Quiet Boot AddOn ROM Display Mode Bootup Num-Lock PS/2 Mouse Support Wait for ‘F1’ If Error Hit ‘DEL’ Message Display Interrupt 19 Capture [Enabled] [Disabled] [Force BIOS] [On] [Auto] [Enabled] [Enabled] [Disabled] Chipset Exit Allows BIOS to skip certain tests while booting. This will decrease the time needed to boot the system.
BIOS SETUP Security Settings This setting comes with two options set the system password. Supervisor Password sets a password that will be used to protect the system and Setup utility. User Password sets a password that will be used exclusively on the system. To specify a password, highlight the type you want and press . The Enter Password: message prompts on the screen. Type the password and press . The system confirms your password by asking you to type it again.
BIOS SETUP Advanced Chipset Settings This setting configures the north bridge, south bridge and the ME subsystem. WARNING! Setting the wrong values may cause the system to malfunction. BIOS SETUP UTILITY Main Advanced PCIPnP Boot Advanced Chipset Settings ► South Exit Configure North Bridge features. WARNING: Setting wrong values in below sections may cause system to malfunction.
BIOS SETUP Configure DRAM Timing by SPD When this item is enabled, the DRAM timing parameters are set according to the DRAM SPD (Serial Presence Detect). When disabled, you can manually set the DRAM timing parameters through the DRAM sub-items. Memory Hole This option is used to reserve memory space between 15MB and 16MB for ISA expansion cards that require a specified area of memory to work properly. Initiate Graphic Adapter This option, by default, is set to PEG/PCI.
BIOS SETUP BIOS SETUP UTILITY Main Advanced PCIPnP Boot South Bridge Chipset Configuration USB Function USB 2.0 Controller Audio Controller SMBUS Controller Chipset Security [6 USB Ports] [Disabled] [Auto] [Enabled] Exit Disabled 2 USB Ports 4 USB Ports 6 USB Ports <- Select Screen ↑↓ +Tab F1 F10 ESC Select Item Change Field Select Field General Help Save and Exit Exit USB Function This option enables the number of USB ports desired or disables the USB function. USB 2.
BIOS SETUP Exit Setup The exit setup has the following settings which are: BIOS SETUP UTILITY Main Advanced PCIPnP Boot Security Exit Options Save Changes and Exit Discard Changes and Exit Discard Changes Load Optimal Defaults Load Failsafe Defaults Chipset Exit Exit system setup after saving the changes.
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DRIVERS INSTALLATION Drivers Installation This section describes the installation procedures for software and drivers under the Windows XP and Windows Vista. The software and drivers are included with the motherboard. If you find the items missing, please contact the vendor where you made the purchase. The contents of this section include the following: Intel Chipset Software Installation Utility ................................. 42 Intel G41 Chipset Family Graphics Driver Installation .............
DRIVERS INSTALLATION Intel Chipset Software Installation Utility The Intel Chipset Drivers should be installed first before the software drivers to enable Plug & Play INF support for Intel chipset components. Follow the instructions below to complete the installation under Windows XP/Vista. 1. Insert the CD that comes with the board. Click Intel at the left side, then Intel(R) G41 Chipset Drivers. 2. Click Intel(R) Chipset Software Installation Utility.
DRIVERS INSTALLATION 3. When the welcome screen to the Intel(R) Chipset Software Installation Utility appears, click Next to continue. 4. Click Yes to accept the software license agreement and proceed with the installation process.
DRIVERS INSTALLATION 5. On Readme Information screen, click Next to continue the installation. 6. The Setup process is now complete. Click Finish to restart the computer and for changes to take effect.
DRIVERS INSTALLATION Intel G41 Chipset Family Graphics Driver Installation To install the VGA drivers, follow the steps below to proceed with the installation. 1. Insert the CD that comes with the board. Click Intel at the left side, then Intel(R) G41 Chipset Drivers. 2. Click Intel G41 Chipset Family Graphics Driver.
DRIVERS INSTALLATION 3. When the welcome screen of the Intel(R) Graphics Media Accelerator Driver appears, click Next to continue. 4. Click Yes to to agree with the license agreement and continue the installation.
DRIVERS INSTALLATION 5. Click Next in the Readme File Information window. 6. Click Next in the Setup Progress window. 7. Setup is now complete. Click Finish to restart the computer and for changes to take effect.
DRIVERS INSTALLATION Realtek High Definition Audio Driver Installation Follow the steps below to install the Realtek HD Codec Audio Drivers. 1. Insert the CD that comes with the board. Click Intel and then Intel(R) G41 Chipset Drivers. 2. Click Realtek High Definition Audio Driver.
DRIVERS INSTALLATION 3.When the welcome screen to InstallShield Wizard for Realtek High Definition Audio Driver appears, click Next to start the installation. 4.When the InstallShieldWizard has finished performing maintenance operations on Realtek High Definition Codec Audio Audio Driver, click Finish to restart the computer.
DRIVERS INSTALLATION Intel PRO LAN Network Drivers Installation Follow the steps below to install Intel PRO LAN drivers. 1. Insert the CD that comes with the board. Click Intel and then Intel(R) G41 Chipset Drivers. 2. Click Intel(R) Gigabit Ethernet Drivers.
DRIVERS INSTALLATION 3. In the Intel® Network Connections screen*, click Install Drivers and Software. 4. In the welcome screen of the InstallShield Wizard for Intel(R) Network Connections, click Next.
DRIVERS INSTALLATION 5. In the License Agreement, Select I accept the terms in the license agreement and click Next. 6. In the Setup Options, click the checkbox as shown below and click Next.
DRIVERS INSTALLATION 7. In the InstallShield Wizard screen, click Install to begin the installation. 8. InstallShield Wizard is completed. Click Finish to exit the Wizard.
APPENDIX Appendix A. I/O Port Address Map Each peripheral device in the system is assigned a set of I/O port addresses that also becomes the identity of the device. The following table lists the I/O port addresses used.
APPENDIX B. Interrupt Request Lines (IRQ) Peripheral devices use interrupt request lines to notify CPU for the service required. The following table shows the IRQ used by the devices on board.
APPENDIX C. Watchdog Timer Configuration The WDT is used to generate a variety of output signals after a user programmable count. The WDT is suitable for use in the prevention of system lock-up, such as when software becomes trapped in a deadlock. Under these sorts of circumstances, the timer will count to zero and the selected outputs will be driven. Under normal circumstance, the user will restart the WDT at regular intervals before the timer counts to zero.
APPENDIX printf("System will reset after %d seconds\n", bTime); EnableWDT(bTime); return 0; } //======================================================================= void copyright(void) { printf("\n======== Winbond 83627EHF Watch Timer Tester (AUTO DETECT) ========\n"\ " Usage : W627E_WD reset_time\n"\ " Ex : W627E_WD 3 => reset system after 3 second\n"\ " W627E_WD 0 => disable watch dog timer\n"); } //======================================================================= void EnableWDT(int interval) {
APPENDIX //======================================================================= // // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY // KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR // PURPOSE. // //======================================================================= ==== #include "W627EHF.H" #include
APPENDIX Lock_W627EHF(); } //======================================================================= void Set_W627EHF_Reg( unsigned char REG, unsigned char DATA) { Unlock_W627EHF(); outportb(W627EHF_INDEX_PORT, REG); outportb(W627EHF_DATA_PORT, DATA); Lock_W627EHF(); } //======================================================================= unsigned char Get_W627EHF_Reg(unsigned char REG) { unsigned char Result; Unlock_W627EHF(); outportb(W627EHF_INDEX_PORT, REG); Result = inportb(W627EHF_DATA_PORT); Lock
APPENDIX File of the Main.cpp //===================================================================== // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY // KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR // PURPOSE. //===================================================================== #include #include #include #include #include "W627HF.
