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MB890
®
Intel Pentium M
Mini-ITX Motherboard
USER’S MANUAL
Version 1.1A
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Acknowledgments Award is a registered trademark of Award Software International, Inc. PS/2 is a trademark of 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. ii MB890 User’s Manual
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Table of Contents Introduction ....................................................... 1 Product Description ............................................................. 1 Checklist .............................................................................. 2 MB890 Specifications ......................................................... 3 Board Dimensions ............................................................... 4 Installations ...............................................
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This page is intentionally left blank. iv MB890 User’s Manual
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INTRODUCTION Introduction Product Description ® The MB890 Mini ITX board incorporates the Intel advanced 855GME Chipset that contains two core components: the Memory Controller Hub (GMCH) and ® ICH4. The GMCH integrates a 400MHz Pentium M processor front side bus controller, integrated graphics controller hub, integrated LVDS interface, two digital video out ports multiplexed with an AGP 4x controller, a 200/266/ 333MHz DDR-SDRAM controller. The ICH4 integrates an Ultra ATA 100/
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INTRODUCTION Checklist Your MB890 package should include the items listed below. ® • The MB890 Pentium M Mini-ITX motherboard • This User’s Manual • 1 CD containing chipset drivers and flash memory utility • Cable kit (IDE, Power, Audio, VGA CRT) 2 MB890 User’s Manual
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INTRODUCTION MB890 Specifications [ ® ® Micro-FCPGA Intel Pentium M processor CPU Type Up to 1.8GHz System Speed 400 MHz CPU Frequency Socket 479 CPU Socket ® Intel 855GME / 852GM chipset Chipset Award BIOS; support ACPI function BIOS 1MB Level 2 (CPU integrated) Cache ® ® Intel 82855GME built-in Intel extreme Graphics 2 VGA 64MB shared with system ® Intel 82855GME built-in, single- or dual-channel LVDS panel support up to UXGA panel resolution. Resolution max. u
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INTRODUCTION Board Dimensions 4 MB890 User’s Manual
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INSTALLATIONS Installations This section provides information on how to use the jumpers and connectors on the MB890 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 MB890 .........................................
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INSTALLATIONS Installing the CPU ® The MB890 board supports a Socket 479 processor socket for Intel ® ® Pentium M or Celeron M processors. The processor socket comes with a screw to secure the processor. As shown in the left picture below, loosen the screw first 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, fas
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INSTALLATIONS Installing the Memory The MB890 board supports one DDR memory sockets for a maximum total memory of 1GB in DDR memory type. The memory module capacities supported are 128MB, 256MB, 512MB and 1GB. The ® following table lists the supported DDR DIMM configurations. Intel 855GME supports configurations defined in the JEDEC DDR DIMM specification only. Non-JEDEC standard DIMMs such as double-sided x16 DDR SDRAM DIMMs are not supported. Installing and Removing Memory Modu
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INSTALLATIONS Setting the Jumpers Jumpers are used on MB890 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 on MB890 and their respective functions. Jumper Locations on MB890 .......................................................... 9 JP1: CPU Host Clock.................................................................... 10 JP2:
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INSTALLATIONS Jumper Locations on MB890 Jumpers on MB890 ........................................................................... Page JP1: CPU Host Clock .......................................................................... 10 JP2: Power Mode Setting .................................................................... 10 JP3: LVDS Power Setting ................................................................... 10 JP4: 1394 Controller EEPROM Write Protect ...................
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INSTALLATIONS JP1: CPU Host Clock SEL-0 SEL_1 (JP1) SEL_2 Host Clock 1 0 100MHz (default) 1 0 133MHz JP2: Power Mode Setting JP2 Power Mode Simulate ATX Power Mode (default) AT Power Mode JP3: LVDS Power Setting JP3 LVDS Power +3.3V (default) +5V JP4: 1394 Controller EEPROM Write Protect JP4 Function Write Disable Write Enabled 10 MB890 User’s Manual
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INSTALLATIONS JP6, JP7, JP8: RS232/422/485 (COM2) Selection COM1 is fixed for RS-232 use only. COM2 is selectable for RS232, RS-422 and RS-485. The following table describes the jumper settings for COM2 selection. COM2 RS-232 RS-422 RS-485 Function JP6: JP6: JP6: 3-5 & 4-6 1-3 & 2-4 1-3 & 2-4 Jumper Setting JP7: JP7: JP7: (pin closed) 3-5 & 4-6 1-3 & 2-4 1-3 & 2-4 JP8: JP8: JP8: 1-2 3-4 5-6 JP9: COM2 RS232 Pin9 Setting Pin # Pin # Signal Name JP9 Signal N
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INSTALLATIONS JP11: Clear CMOS Contents JP11 Setting Function Pin 1-2 Normal Short/Closed Pin 2-3 Clear CMOS Short/Closed JP13: Compact Flash Mode Setting JP13 CF Mode Slave Master ® J13: Intel 82541GI Gigabit LAN Enable/Disable J13 Gigabit LAN Enable Disable [ JP14: CPU VCCA Voltage Setting JP14 Setting Function Pin 1-2 1.8V Short/Closed for Banias core Pin 2-3 1.5V Short/Closed for Dothan core SW1: FSB / DDR Setting SW1 Setti
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INSTALLATIONS Connectors on MB890 The connectors on MB890 allows you to connect external devices such as keyboard, floppy disk drives, hard disk drives, printers, etc. The following table lists the connectors on MB890 and their respective functions. Connector Locations on MB890 .................................................. 14 CN1: DC Jack for DC Adaptor .................................................... 15 CN2: PS/2 Keyboard and PS/2 Mouse Connectors ..................
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INSTALLATIONS Connector Locations on MB890 Connectors on MB890 ....................................................................................................................................... Page CN1: DC Jack for DC Adaptor ..............................................................................................................................15 CN2: PS/2 Keyboard and PS/2 Mouse Connectors ....................................................................................
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INSTALLATIONS CN1: DC Jack for DC Adaptor The DC jack accepts input of 12V or 19V. CN2: PS/2 Keyboard and PS/2 Mouse Connectors PS/2 Mouse PS/2 Keyboard Signal Name Keyboard Mouse Signal Name Keyboard data 1 1 Mouse data N.C. 2 2 N.C. GND 3 3 GND 5V 4 4 5V Keyboard clock 5 5 Mouse clock N.C. 6 6 N.C. CN3: DVI-I Connector Signal Name Pin # Pin # Signal Name DATA 2- 1 16 HOT POWER DATA 2+ 2 17 DATA 0- Shield 2/4 3 18 DATA 0+ DATA 4- 4 19 SHIELD 0/5 DATA 4+
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INSTALLATIONS CN4: Parallel Port Connector Signal Name Pin # Pin # Signal Name Line printer strobe 1 14 AutoFeed PD0, parallel data 0 2 15 Error PD1, parallel data 1 3 16 Initialize PD2, parallel data 2 4 17 Select PD3, parallel data 3 5 18 Ground PD4, parallel data 4 6 19 Ground PD5, parallel data 5 7 20 Ground PD6, parallel data 6 8 21 Ground PD7, parallel data 7 9 22 Ground ACK, acknowledge 10 23 Ground Busy 11 24 Ground Paper empty 12 25 Ground Select 13 N/A N/
