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APPENDIX

MB890 User’s Manual

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.

Level

Function

IRQ0

System Timer Output

IRQ1 Keyboard
IRQ2 Interrupt

Cascade

IRQ3

Serial Port #2

IRQ4

Serial Port #1

IRQ5 Reserved
IRQ6

Floppy Disk Controller

IRQ7

Parallel Port #1

IRQ8

Real Time Clock

IRQ9 Reserved
IRQ10 Reserved
IRQ11 Reserved
IRQ12 PS/2

Mouse

IRQ13 80287
IRQ14 Primary

IDE

IRQ15 Secondary

IDE

Содержание MB875

Страница 1: ...MB875 Intel 852GM Chipset Custom Motherboard for 1U Rackmount USER S MANUAL Version 1 0 ...

Страница 2: ...f International Business Machines Corporation Intel and Pentium M are registered trademarks 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 ...

Страница 3: ...etting the Jumpers 8 Connectors on MB875 12 BIOS Setup 19 Drivers Installation 43 Intel Chipset Software Intallation Utility 44 VGA Drivers Installation 46 AC97 Codec Audio Driver Installation 48 Intel PRO LAN Drivers Installation 49 SATA Drivers Installation 50 Appendix 53 A I O Port Address Map 53 B Interrupt Request Lines IRQ 54 C Watchdog Timer Configuration 55 D Digital I O Sample Code 59 ...

Страница 4: ...The MB875 Motherboard The MB875 Edge Connectors iv MB890 User s Manual ...

Страница 5: ...nsive networking communication required by firewall or VPN and offers bypass function support on LAN1 and LAN2 to ensure high network availability To provide the best utilization and performance the platform provides a number storage interfaces including two IDE ports two SATA ports four USB ports and a CompactFlash socket One PCI 32 bit 33MHz Golden Finger and one Mini PCI slot are available for ...

Страница 6: ...nual Checklist Your MB875 package should include the items listed below The MB875 Pentium M Mini ITX motherboard This User s Manual 1 CD containing chipset drivers and flash memory utility Option Cable VGA4K USB2K 4 PK1 2K PK1K PS2D ...

Страница 7: ...ts IDE Interface Two channels support Ultra DMA 33 66 100 LPC I O Winbond W83627HF COM1 2 RS232 PS 2 Keyboard Mouse controller Hardware monitor 3 thermal inputs 6 voltage monitor inputs 3 Fan Headers Fintek 81216 COM3 4 RTC CMOS Intel ICH4 built in RTC with onboard Lithium Battery Edge Connectors LED Button front side DB9 male x1 for COM1 console port Dual USB stack connector x1 for USB 0 1 RJ45 w...

Страница 8: ...INTRODUCTION Board Dimensions 4 MB890 User s Manual ...

Страница 9: ...ations This section provides information on how to use the jumpers and connectors on the MB875 in order to set up a workable system The topics covered are Installing the CPU 6 Installing the Memory 7 Setting the Jumpers 8 Connectors on MB875 12 ...

Страница 10: ...rst before inserting the processor Place the processor into the socket by making sure the notch on the corner of the CPU corresponds with the notch on the inside of the socket Once the processor has slide into the socket fasten the screw Refer to the figures below NOTE Ensure that the CPU heat sink and the CPU top surface are in total contact to avoid CPU overheating problem that would cause your ...

Страница 11: ...d DIMMs such as double sided x16 DDR SDRAM DIMMs are not supported Installing and Removing Memory Modules To install the DDR modules locate the memory slot on the board and perform the following steps 1 Hold the DDR module so that the key of the DDR module align with those on the memory slot 2 Gently push the DDR module in an upright position until the clips of the slot close to hold the DDR modul...

Страница 13: ...per Locations on MB875 Jumpers on MB875 Page JP1 Clear CMOS Contents 10 JP2 Watchdog Timer Settings 10 JP4 Compact Flash Slave Master 10 JP5 Processor Operating Frequency 11 JP7 Power ON Setting 11 MB890 User s Manual 9 ...

Страница 14: ...fault Eth0 Eth1 None Bypass System will bypass LANs upon the timeout of Watchdog timer Pin 1 2 3 4 Open Ethernet default Eth0 Eth1 Bypass mode System will not bypass LANs upon the timeout of Watchdog timer Pin 1 2 3 4 Short System will reboot upon the timeout of Watchdog timer Default 1 2 3 4 Short Jumper 1 2 3 4 Open System will bypass LANs upon the timeout of WDT timer Function System will reboo...

Страница 15: ...ng Frequency JP5 CPU Operating Frequency Open 133MHz Close 100MHz default JP7 Power ON Setting JP7 Setting Function Pin 1 2 Short Closed Power on by system button Pin 2 3 Short Closed Power on by power supply AC on MB890 User s Manual 11 ...

Страница 16: ...tions Connector Locations on MB875 13 J1 VGA CRT Connector 14 J2 COM2 Serial Port 14 J4 USB Connector 14 J5 SATA HDD Connector 15 J6 SATA HDD Connector 15 J7 COM3 Serial Port 15 J8 COM4 Serial Port 16 J9 Case Open Detect Header 16 J10 ATX Power Connector 16 J11 Keyboard Mouse Connector 17 J12 Power On Reset Headers 17 SW1 Digital I O Input Pin Switch 17 LED1 Digital IO Output LED 17 LED2 HDD Power...

Страница 17: ...15 J6 SATA HDD Connector 15 J7 COM3 Serial Port 15 J8 COM4 Serial Port 16 J9 Case Open Detect Header 16 J10 ATX Power Connector 16 J11 Keyboard Mouse Connector 17 J12 Power On Reset Headers 17 SW1 Digital I O Input Pin Switch 17 LED1 Digital IO Output LED 17 LED2 HDD Power LED 17 CN2 CN3 CN4 CN5 LAN Connectors 17 CN6 USB Connector 17 MB890 User s Manual 13 ...

Страница 18: ...COM2 Serial Port Pin Signal Name RS 232 1 DCD Data carrier detect 2 RXD Receive data 3 TXD Transmit data 4 DTR Data terminal ready 5 Ground 6 DSR Data set ready 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator 10 No Connect J4 USB Connector Signal Name Pin Pin Signal Name Vcc 1 5 Ground USB2 2 6 USB3 USB2 3 7 USB3 Ground 4 8 Vcc 14 MB890 User s Manual ...

Страница 19: ...in Signal Name 1 Ground 2 TX 3 TX 4 Ground 5 RX 6 RX 7 Ground J7 COM3 Serial Port Pin Signal Name RS 232 1 DCD Data carrier detect 2 RXD Receive data 3 TXD Transmit data 4 DTR Data terminal ready 5 Ground 6 DSR Data set ready 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator 10 No Connect MB890 User s Manual 15 ...

Страница 20: ...quest to send 8 CTS Clear to send 9 RI Ring indicator 10 No Connect J9 Case Open Detect Header Pin Signal Name 1 Case Open Detect 2 Ground J10 ATX Power Connector 11 1 20 10 Signal Name Pin Pin Signal Name 3 3V 11 1 3 3V 12V 12 2 3 3V Ground 13 3 Ground PS ON 14 4 5V Ground 15 5 Ground Ground 16 6 5V Ground 17 7 Ground 5V 18 8 Power good 5V 19 9 5VSB 5V 20 10 12V 16 MB890 User s Manual ...

Страница 21: ...me Protect pin 10 5 N C KB clock 9 4 Mouse clock KB data 8 3 Mouse data Vcc 7 2 Vcc Ground 6 1 Ground J12 Power On Reset Headers Pin Signal Name 1 PS_ON 2 Ground Pin Signal Name 3 RESET 4 Ground SW1 Digital I O Input Pin Switch LED1 Digital IO Output LED LED2 HDD Power LED Red HDD LED Green Power LED CN2 CN3 CN4 CN5 LAN Connectors CN2 LAN1 CN3 LAN2 CN4 LAN3 CN5 LAN4 CN6 USB Connector MB890 User s ...

Страница 22: ...INSTALLATIONS 18 MB890 User s Manual This page is intentionally left blank ...

Страница 23: ...are as follows BIOS Introduction 20 BIOS Setup 20 Standard CMOS Setup 22 Advanced BIOS Features 25 Advanced Chipset Features 28 Integrated Peripherals 31 Power Management Setup 35 PNP PCI Configurations 38 PC Health Status 39 Frequency Voltage Control 40 Load Fail Safe Defaults 41 Load Optimized Defaults 41 Set Supervisor User Password 41 Save Exit Setup 41 Exit Without Saving 41 ...

Страница 24: ...S is immediately activated Pressing the Del key immediately allows you to enter the Setup utility If you are a little bit late pressing the Del key POST Power On Self Test will continue with its test routines thus preventing you from invoking the Setup If you still wish to enter Setup restart the system by pressing the Reset button or simultaneously pressing the Ctrl Alt and Delete keys You can al...

Страница 25: ...displays the control keys for this menu At the bottom of the Main Menu just below the control keys section there is another section which displays information on the currently highlighted item in the list Note If the system cannot boot after making and saving system changes with Setup the Award BIOS supports an override to the CMOS settings that resets your system to its default Warning It is stro...

Страница 26: ...Menu Level IDE Primary Master None Change the day month Year and century IDE Primary Slave None IDE Secondary Master None IDE Secondary Slave None Drive A 1 44M 3 5 in Drive B None Video EGA VGA Halt On All Errors Base Memory 640K Extended Memory 129024K Total Memory 130048K At the bottom of the menu are the control keys for use on this menu If you need any help in each item field you can press th...

Страница 27: ...to Manual and None Select Manual to define the drive information manually You will be asked to enter the following items CYLS Number of cylinders HEAD Number of read write heads PRECOMP Write precompensation LANDING ZONE Landing zone SECTOR Number of sectors The Access Mode selections are as follows CHS HD 528MB LBA HD 528MB and supports Logical Block Addressing Large for MS DOS only Auto Remarks ...

Страница 28: ...or not the system will halt if an error is detected during power up No errors The system boot will not be halted for any error that may be detected All errors Whenever the BIOS detects a non fatal error the system will stop and you will be prompted All But Keyboard The system boot will not be halted for a keyboard error it will stop for all other errors All But Diskette The system boot will not be...

Страница 29: ...ol for OS 1 4 OS Select For DRAM 64MB Non OS2 Report No FDD For WIN 95 Yes Small Logo EPA Show Enabled CPU Feature Press Enter to configure the settings relevant to CPU Feature Virus Warning If this option is enabled an alarm message will be displayed when trying to write on the boot sector or on the partition table on the disk which is typical of the virus CPU L1 and L2 Cache CPU L3 Cache Cache m...

Страница 30: ...ecks for a floppy drive while booting up If it cannot detect one either due to improper configuration or its absence it will flash an error message Boot Up NumLock Status This allows you to activate the NumLock function after you power up the system Gate A20 Option This field allows you to select how Gate A20 is worked Gate A20 is a device used to address memory above 1 MB Typematic Rate Setting W...

Страница 31: ...ve support for multiple PCI bus configurations and improve future expandability The default setting is 1 4 OS Select for DRAM 64MB This option allows the system to access greater than 64MB of DRAM memory when used with OS 2 that depends on certain BIOS calls to access memory The default setting is Non OS 2 Report No FDD For WIN 95 If you are using Windows 95 98 without a floppy disk drive select E...

Страница 32: ...V Standard Off Video Connector Automatic TV Format Auto Panel Scaling Auto Panel Number 1024x768 18bit SC DRAM Timing Selectable This option refers to the method by which the DRAM timing is selected The default is By SPD CAS Latency Time You can configure CAS latency time in HCLKs as 2 or 2 5 or 3 The system board designer should set the values in this field depending on the DRAM installed Do not ...

Страница 33: ...hing of the system BIOS ROM at F000h FFFFFh resulting in better system performance However if any program writes to this memory area a system error may result Video BIOS Cacheable The Setting Enabled allows caching of the video BIOS ROM at C0000h F7FFFh resulting in better video performance However if any program writes to this memory area a system error may result Memory Hole At 15M 16M In order ...

Страница 34: ...isplay The default setting is CRT DVI The options available include some combinations with LVDS and TV out The MB875 supports dual view CRT with LVDS or TV out TV Standard on MB875F FC version only The default setting is Off Video Connector on MB875F FC version only The default setting is Automatic TV Format on MB875F FC version only The default setting is Auto Panel Scaling The default setting is...

Страница 35: ...BIOS CMOS Setup Utility OnChip IDE Device On Chip Primary PCI IDE Enabled ITEM HELP IDE Primary Master PIO Auto Menu Level IDE Primary Slave PIO Auto IDE Primary Master UDMA Auto IDE Primary Slave UDMA Auto On Chip Secondary PCI IDE Enabled IDE Secondary Master PIO Auto IDE Secondary Slave PIO Auto IDE Secondary Master UDMA Auto IDE Secondary Slave UDMA Auto IDE HDD Block Mode Enabled Phoenix Awar...

Страница 36: ...ese fields allow your system hard disk controller to work faster Rather than have the BIOS issue a series of commands that transfer to or from the disk drive PIO Programmed Input Output allows the BIOS to communicate with the controller and CPU directly The system supports five modes numbered from 0 default to 4 which primarily differ in timing When Auto is selected the BIOS will select the best a...

Страница 37: ... Audio is Auto Init Display First The default setting is PCI Card Power On After Fail The setting configures the system power on status when power is restored to the system after a power failure occurrence The default setting is Off Onboard FDC Controller Select Enabled if your system has a floppy disk controller FDC installed on the motherboard and you wish to use it If you install an add in FDC ...

Страница 38: ...mines the UART 2 mode in your computer The default value is Normal Other options include IrDA and ASKIR Parallel Port Mode This field allows you to determine parallel port mode function SPP Standard Printer Port EPP Enhanced Parallel Port ECP Extended Capabilities Port ...

Страница 39: ...m Disabled Date of Month Alarm 0 Time hh mm ss Alarm 0 0 0 Reload Global Timer Events Primary IDE 0 Enabled Primary IDE 1 Enabled Secondary IDE 0 Enabled Secondary IDE 1 Enabled FDD COM LPT Port Enabled PCI PIRQ A D Enabled Power Supply Type Use this field to select the power supply type used in the system The default setting is ATX ACPI Function Enable this function to support ACPI Advance Config...

Страница 40: ...and after the set time of system inactivity all devices except the CPU will be shut off HDD Power Down When enabled and after the set time of system inactivity the hard disk drive will be powered down while all other devices remain active Soft Off by PWRBTN This field defines the power off mode when using an ATX power supply The Instant Off mode allows powering off immediately upon pressing the po...

Страница 41: ...nabled the user is allowed to set the Date and Time Reload Global Timer Events The HDD FDD COM LPT Ports and PCI PIRQ are I O events that can prevent the system from entering a power saving mode or can awaken the system from such a mode When an I O device wants to gain the attention of the operating system it signals this by causing an IRQ to occur When the operating system is ready to respond to ...

Страница 42: ...urces Press Enter PCI VGA Palette Snoop Disabled Reset Configuration Data This field allows you to determine whether to reset the configuration data or not The default value is Disabled Resources Controlled by This PnP BIOS can configure all of the boot and compatible devices automatically with the use of a use a PnP operating system such as Windows 95 PCI VGA Palette Snoop Some non standard VGA d...

Страница 43: ... to set the temperature so that when the temperature is reached the system sounds a warning This function can help prevent damage to the system that is caused by overheating Temperatures Voltages These fields are the parameters of the hardware monitoring function feature of the motherboard The values are read only values as monitored by the system and show the PC health status Shutdown Temperature...

Страница 44: ...etup Utility Frequency Voltage Control Auto Detect PCI Clk Disabled ITEM HELP Spread Spectrum Modulated Disabled Menu Level Auto Detect PCI Clk This field enables or disables the auto detection of the PCI clock Spread Spectrum Modulated This field sets the value of the spread spectrum The default setting is Disabled This field is for CE testing use only ...

Страница 45: ...ssword message prompts on the screen Type the password up to eight characters in length and press Enter The system confirms your password by asking you to type it again After setting a password the screen automatically returns to the main screen To disable a password just press the Enter key when you are prompted to enter the password A message will confirm the password to be disabled Once the pas...

Страница 46: ...BIOS SETUP 42 MB890 User s Manual This page is intentionally left blank ...

Страница 47: ...g please contact the vendor where you made the purchase The contents of this section include the following Intel Chipset Software Intallation Utility 44 VGA Drivers Installation 46 AC97 Codec Audio Driver Installation 48 Intel PRO LAN Drivers Installation 49 SATA Drivers Installation 50 IMPORTANT NOTE After installing your Windows operating system Windows 98SE ME 2000 XP you must install first the...

Страница 48: ...s to enable Plug Play INF support for Intel chipset components Follow the instructions below to complete the installation under Windows 98SE ME 2000 XP 1 Insert the CD that comes with the board Click Intel Chipsets and then Intel R 855 852GME Chipset Family Drivers 2 Click Intel R Chipset Software Installation Utility 44 MB890 User s Manual ...

Страница 49: ...d with the installation process 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 When the computer has restarted the system will be able to find some devices Restart your computer when prompted MB890 User s Manual 45 ...

Страница 50: ...ow to proceed with the installation 1 Insert the CD that comes with the motherboard Click Intel Chipsets and then Intel R 855 852GME Chipset Family Drivers 2 Click Intel R 855 852GME Chipset Family Graphics Driver 3 When the Welcome screen appears click Next to continue 46 MB890 User s Manual ...

Страница 51: ...DRIVERS INSTALLATION 4 Click Yes to to agree with the license agreement and continue the installation 5 Restart the computer as promted and for changes to take effect MB890 User s Manual 47 ...

Страница 52: ...comes with the motherboard Click Intel Chipsets and then Intel R 855 852GME Chipset Family Drivers 2 Click Realtek AC 97 Codec Audio Driver 3 When the Welcome screen appears click Next to continue 4 Set up has finished installing Realtek AC 97 Audio on your computer Finish to restart the computer and for changes to take effect 48 MB890 User s Manual ...

Страница 53: ...ete the installation of the Intel PRO LAN drivers 1 Insert the CD that comes with the motherboard Click LAN Card and then Intel R PRO LAN Drivers 2 Click Install Base Software to continue 3 When prompted please to restart the computer for new settings to take effect MB890 User s Manual 49 ...

Страница 54: ... Drivers Installation To install the SATA drivers follow the steps below to proceed with the installation 1 Insert the Windows operating system go to the Device Manager Click the Mass Storage Controller 50 MB890 User s Manual ...

Страница 55: ...DRIVERS INSTALLATION 2 In the Properties window click Update Driver 3 Once in the Welcome screen of the Hardware Update Wizard select No not this time and click Next MB890 User s Manual 51 ...

Страница 56: ...t 5 Click Browse to find the location of the drivers Assuming D is the drive where the CD drivers is located the path would be D Sata SATA SIL3512 Non RAID Click Next to continue 6 The installation process is now complete Click Finish to close the Hardware Update Wizard 52 MB890 User s Manual ...

Страница 57: ...05Fh Timer 060h 06Fh Keyboard Controller 070h 07Fh Real Time Clock NMI 080h 09Fh DMA Page Register 0A0h 0BFh Interrupt Controller 2 0C0h 0DFh DMA Controller 2 0F0h Clear Math Coprocessor Busy Signal 0F1h Reset Math Coprocessor 1F0h 1F7h IDE Interface 278 27F Parallel Port 2 LPT2 2F8h 2FFh Serial Port 2 COM2 2B0 2DF Graphics adapter Controller 378h 3FFh Parallel Port 1 LPT1 360 36F Network Ports 3B...

Страница 58: ...ng table shows the IRQ used by the devices on board Level Function IRQ0 System Timer Output IRQ1 Keyboard IRQ2 Interrupt Cascade IRQ3 Serial Port 2 IRQ4 Serial Port 1 IRQ5 Reserved IRQ6 Floppy Disk Controller IRQ7 Parallel Port 1 IRQ8 Real Time Clock IRQ9 Reserved IRQ10 Reserved IRQ11 Reserved IRQ12 PS 2 Mouse IRQ13 80287 IRQ14 Primary IDE IRQ15 Secondary IDE ...

Страница 59: ...mal circumstance the user will restart the WDT at regular intervals before the timer counts to zero SAMPLE CODE 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 Name Enable_And_Set_Watchdog IN AL 1sec 255sec OUT None Enable_And_Set_Watch...

Страница 60: ... mov cl 30h call Write_Reg watchdog enabled call Lock_Chip ret Enable_And_Set_Watchdog Endp Name Disable_Watchdog IN None OUT None Disable_Watchdog Proc Near call Unlock_Chip mov cl 07h mov al 08h call Write_Reg switch to LD8 xor al al mov cl 0F6h call Write_Reg clear watchdog timer xor al al mov cl 30h call Write_Reg watchdog disabled call Lock_Chip ret Disable_Watchdog Endp ...

Страница 61: ...ut dx al out dx al ret Unlock_Chip Endp Name Lock_Chip IN None OUT None Unlock_Chip Proc Near mov dx 4Eh mov al 0AAh out dx al ret Unlock_Chip Endp Name Write_Reg IN CL register index AL Value to write OUT None Write_Reg Proc Near push ax mov dx 4Eh mov al cl out dx al pop ax inc dx out dx al ret Write_Reg Endp ...

Страница 62: ...APPENDIX 58 MB890 User s Manual Name Read_Reg IN CL register index OUT AL Value to read Read_Reg Proc Near Mov al cl mov dx 4Eh out dx al inc dx in al dx ret Read_Reg Endp ...

Страница 63: ...RANTIES OF MERCHANTABILITY AND OR FITNESS FOR A PARTICULAR PURPOSE ifndef __W627HF_H define __W627HF_H 1 define W627_IOBASE 0x4E define W627HF_INDEX_PORT W627_IOBASE 0 define W627HF_DATA_PORT W627_IOBASE 1 define W627HF_REG_LD 0x07 define W627HF_UNLOCK 0x87 define W627HF_LOCK 0xAA void Set_W627HF_LD unsigned char void Set_W627HF_Reg unsigned char unsigned char unsigned char Get_W627HF_Reg unsigned...

Страница 64: ...PORT W627HF_UNLOCK outportb W627HF_INDEX_PORT W627HF_UNLOCK void Lock_W627HF void outportb W627HF_INDEX_PORT W627HF_LOCK void Set_W627HF_LD unsigned char LD Unlock_W627HF outportb W627HF_INDEX_PORT W627HF_REG_LD outportb W627HF_DATA_PORT LD Lock_W627HF void Set_W627HF_Reg unsigned char REG unsigned char DATA Unlock_W627HF outportb W627HF_INDEX_PORT REG outportb W627HF_DATA_PORT DATA Lock_W627HF un...

Страница 65: ... ClrKbBuf void int main int argc char argv int main int argc char argv unsigned char ucDO 0 data for digital output unsigned char ucDI data for digital input unsigned char ucBuf Set_W627HF_LD 0x07 switch to logic device 7 Set_W627HF_Reg 0xF1 0x00 clear ucDI Get_W627HF_Reg 0xF1 0x0F ClrKbBuf while 1 ucDO Set_W627HF_Reg 0xF1 ucDO 0x0F 4 ucBuf Get_W627HF_Reg 0xF1 0x0F if ucBuf ucDI ucDI ucBuf printf ...

Страница 66: ...APPENDIX 62 MB890 User s Manual This page is intentionally left blank ...

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