Intel MB890 User Manual
MB890
Intel Pentium® M
Mini-ITX Motherboard
USER’S MANUAL
Version 1.1A
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
Table of Contents
Introduction ....................................................... 1
Product Description ............................................................. 1
Checklist .............................................................................. 2
MB890 Specifications ......................................................... 3
Board Dimensions ............................................................... 4
Installations ....................................................... 5
Installing the CPU ............................................................... 6
Installing the Memory ......................................................... 7
Setting the Jumpers ............................................................. 8
Connectors on MB890 ...................................................... 13
BIOS Setup ....................................................... 23
Drivers Installation ...................................... 47
Intel Chipset Software Intallation Utility .......................... 48
VGA Drivers Installation .................................................. 50
AC97 Codec Audio Driver Installation ............................. 51
Intel PRO LAN Drivers Installation .................................. 52
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
MB890 User’s Manual iii
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iv MB890 User’s Manual
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
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 100/66/33 controller, USB host controller
that supports the USB 1.1 and USB 2.0 specification, LPC interface, FWH Flash
BIOS interface controller, AC’97 digital controller and a hub interface for
communication with the GMCH.
The Pentium M processor is a higher performance, lower power processor with
several microarchitectural enhancements over existing Intel low-power
processors. Some key features of the Pentium M processor microarchitecture
include dynamic execution, data pre-fetch logic, 400MHz source-synchronous
Front Side Bus (FSB), on-die 1 Mbyte second level cache (on-die 512Kbyte
second level cache on Celeron M processor) with advanced transfer cache
architecture, streaming SIMD extensions 2 (SSE2), and Enhanced Intel
SpeedStep technology.
The super I/O W83627THF onboard integrates the following major peripheral
functions in a chip: the disk driver adapter (FDC), serial port (UART), parallel
port (SPP/EPP/ECP), keyboard controller (KBC), SIR, game port, MIDI port,
hardware monitor, ACPI and On Now Wake-up features.
MB890 supports both DVI and optional TV-OUT with the use of the Chrontel
CH7009 (default) or support DVI only with the use of the Chrontel CH7301. The
TV-Out processor performs non-interlace to interlace conversion with scaling
and flicker filters, and encodes the data into any of the NTSC or PAL video
standards.
The MB890 Mini-ITX motherboard supports CRT VGA interface as well. Intel
82541GI supports Gigabit Ethernet functionality. The board also has AC97
5.1CH audio, 2 COM ports, UDMA 100, 6 USB ports, watchdog timer and a PCI
slot for expandability. Dimensions of the board are 170mm x 170mm.
®
M processor front side bus
Note: MB890 uses 852GM and MB890F uses 855GME chipset.
MB890 User’s Manual 1
INTRODUCTION
Checklist
Your MB890 package should include the items listed below.
• The MB890 Pentium
• This User’s Manual
• 1 CD containing chipset drivers and flash memory utility
• Cable kit (IDE, Power, Audio, VGA CRT)
®
M Mini-ITX motherboard
2 MB890 User’s Manual
MB890 Specifications
[
CPU Type
System Speed
CPU Frequency
CPU Socket
Chipset
BIOS
Cache
VGA
Micro-FCPGA Intel® Pentium® M processor
Up to 1.8GHz
400 MHz
Socket 479
Intel® 855GME / 852GM chipset
Award BIOS; support ACPI function
1MB Level 2 (CPU integrated)
Intel® 82855GME built-in Intel® extreme Graphics 2
64MB shared with system
LVDS
Intel® 82855GME built-in, single- or dual-channel
panel support up to UXGA panel resolution.
Resolution max. up to 1600x1200, 24bit
DVI
LAN
1394 (option)
Memory Type
Chrontel CH7009 DVI /TV out or CH7301 DVI only
ICH4 integrated LAN controller (10/100Mb) + PHY 82562EZ
®
82541GI Gigabit LAN controller
or Intel
TSB43LV22 1394 controller
One DDR DIMM socket, supports up to 1GB DDR
200/266/333 SDRAM
LPC I/O
Winbond W83627THF: Parallel x1, COM1 (RS-232), COM2
(RS-232/422/485), FDC 1.44MB (Slim), IrDA, Hardware
monitoring
RTC/CMOS
Keyboard/Mouse
IDE Interface
Sound
Intel® ICH4 built-in RTC with onboard lithium battery
PS/2 Keyboard/Mouse connectors
Two channels; supports Ultra DMA 33/66/100
ICH4 built-in Sound controller + AC97 Codec ALC 650, 5.1
channel (Line-out, Line-in & Mic.)
USB
Watchdog Timer
Edge Connectors
6 ports, USB 2.0
256 segments (0, 1, 2,… 255 sec/min)
DVI, RJ45 + USBx2, Parallel Port, COM 1 & COM 2, PS/2
KB/MS, optional 1394
On Board
Pin-Header /
Connectors
Power Connector
40 pins box-header x 1 (IDE1), 44 pins box-header x 1 (ID E2),
8 pins pin-header x 3 for USB 2/3; USB 4/5 & 1394 (option),
Audio, TV-out (option), IrDA, 2x LVDS, CF socket (option),
Slim FDD, 20-pin function connector.
Input: One DC power jack input (+19V or +12V) and one
internal 4-pins power connector
Output: One 4-pins power connector for CD-ROM and one
4-pins power connector for FDD
Expansion Slots
Form Factor
Dimensions
PCI slot x1 (supports 2 Bus master), optional Mini-PCI
Mini-ITX
170mm x 170mm
INTRODUCTION
MB890 User’s Manual 3
INTRODUCTION
Board Dimensions
4 MB890 User’s Manual
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 ...................................................... 13
MB890 User’s Manual 5
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, 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 system to hang or be unstable.
6 MB890 User’s Manual
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 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 module in place when the DDR module
touches the bottom of the slot.
3. To remove the DDR module, press the clips with both hands.
®
MB890 User’s Manual 7
Lock
DDR Module
Lock
LockLock
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: Power Mode Setting .............................................................. 10
JP3: LVDS Power Setting ............................................................ 10
JP4: 1394 Controller EEPROM Write Protect ............................. 10
JP6, JP7, JP8: RS232/422/485 (COM2) Selection ....................... 11
JP9: COM2 RS232 Pin9 Setting ................................................... 11
JP10: COM1 RS232 Pin9 Setting ................................................. 11
JP11: Clear CMOS Contents ........................................................ 12
JP13: Compact Flash Mode Setting .............................................. 12
J13: Intel® 82541GI Gigabit LAN Enable/Disable ....................... 12
JP14: CPU VCCA Voltage Setting ............................................... 12
SW1: FSB / DDR Setting ............................................................. 12
8 MB890 User’s Manual
Jumper Locations on MB890
INSTALLATIONS
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 .................................... 10
JP6, JP7, JP8: RS232/422/485 (COM2) Selection .............................. 11
JP9: COM2 RS232 Pin9 Setting .......................................................... 11
JP10: COM1 RS232 Pin9 Setting ........................................................ 11
JP11: Clear CMOS Contents ............................................................... 12
JP13: Compact Flash Mode Setting ..................................................... 12
J13: Intel® 82541GI Gigabit LAN Enable/Disable .............................. 12
MB890 User’s Manual 9
INSTALLATIONS
)
JP1: CPU Host Clock
SEL-0 SEL_1 (JP1) SEL_2 Host Clock
1
1
0 100MHz (default
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
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
Function
Jumper
Setting
(pin closed)
RS-232 RS-422 RS-485
JP6:
3-5 & 4-6
JP7:
3-5 & 4-6
JP8:
1-2
JP6:
1-3 & 2-4
JP7:
1-3 & 2-4
JP8:
3-4
JP6:
1-3 & 2-4
JP7:
1-3 & 2-4
JP8:
5-6
JP9: COM2 RS232 Pin9 Setting
Pin #
Signal Name JP9 Signal Name
1 RI
+12V 2
Pin #
3 RI (Default) RI (Default) 4
5 RI +5V 6
COM2 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V, Pin 3-4
RI Signal (default)
JP10: COM1 RS232 Pin9 Setting
Pin #
Signal Name JP10 Signal Name
1 RI
+12V 2
Pin #
3 RI (Default) RI (Default) 4
5 RI +5V 6
COM1 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V, Pin 3-4
RI Signal
MB890 User’s Manual 11
INSTALLATIONS
JP11: Clear CMOS Contents
JP11 Setting Function
Pin 1-2
Short/Closed
Pin 2-3
Short/Closed
Normal
Clear CMOS
JP13: Compact Flash Mode Setting
JP13 CF Mode
Slave
Master
J13: Intel® 82541GI Gigabit LAN Enable/Disable
J13 Gigabit LAN
[
JP14: CPU VCCA Voltage Setting
Enable
Disable
JP14 Setting Function
Pin 1-2
Short/Closed
Pin 2-3
SW1: FSB / DDR Setting
Short/Closed
SW1 Setting Function
All OFF, for
MB890
All ON, for
MB890F
12 MB890 User’s Manual
1.8V
for Banias core
1.5V
for Dothan core
FSB= 400MHz
DDR= 266MHz
FSB= 400MHz
DDR= up to
333MHz
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 ...................... 15
CN3: DVI-I Connector ................................................................. 15
CN4: Parallel Port Connector ....................................................... 16
CN5, CN8: 1394 Connectors (option) .......................................... 16
CN6: RJ45 and 2 USB Ports ........................................................ 16
CN7: COM1 and COM2 Serial Ports ........................................... 16
J2: HDD Power Connector ........................................................... 17
J3: Internal DC-In Power Connector ............................................ 17
J5: LCD Backlight Setting ............................................................ 17
J6, J8: LVDS Connectors (1st channel, 2nd channel) .................. 18
J7: IrDA Connector ...................................................................... 18
J10: Digital I/O ............................................................................. 18
J11, J12: USB Port Pin Header .................................................... 18
J16: HDD Power Pin Header ........................................................ 19
J17: Mini PCI Socket ................................................................... 19
J18, J19: Primary and Secondary IDE Connectors ....................... 19
J20: CD-In Pin Header ................................................................. 20
J21: External Audio Connector .................................................... 21
J22: System Function Connector ................ 錯誤! 尚未定義書籤。
J23: Wake On LAN Connector .................................................... 21
J24: Compact Flash Socket .......................................................... 21
J25: VGA CRT Connector ........................................................... 22
J26: Power Connector (for MB890D / MB890FD) ...................... 22
FAN1: CPU Fan Power Connector .............................................. 22
FAN2: System Fan Power Connector .......................................... 22
MB890 User’s Manual 13
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 ...............................................................................................15
CN3: DVI-I Connector ...........................................................................................................................................15
CN4: Parallel Port Connector ................................................................................................................................16
CN5, CN8: 1394 Connectors (option) ...................................................................................................................16
CN6: RJ45 and 2 USB Ports ..................................................................................................................................16
CN7: COM1 and COM2 Serial Ports ....................................................................................................................16
J2: HDD Power Connector ....................................................................................................................................17
J3: Internal DC-In Power Connector ......................................................................................................................17
J5: LCD Backlight Setting .....................................................................................................................................17
J6, J8: LVDS Connectors (1st channel, 2nd channel) ............................................................................................18
J7: IrDA Connector ................................................................................................................................................18
J10: Digital I/O .......................................................................................................................................................18
J11, J12: USB Port Pin Header ..............................................................................................................................18
J16: HDD Power Pin Header .................................................................................................................................19
J17: Mini PCI Socket .............................................................................................................................................19
J18, J19: Primary and Secondary IDE Connectors ................................................................................................19
J20: CD-In Pin Header ...........................................................................................................................................20
J21: External Audio Connector ..............................................................................................................................21
J22: System Function Connector ........................................................................................ 錯誤! 尚未定義書籤。
J23: Wake On LAN Connector ..............................................................................................................................21
J24: Compact Flash Socket ....................................................................................................................................21
J25: VGA CRT Connector .....................................................................................................................................22
J26: Power Connector (for MB890D / MB890FD) ...............................................................................................22
FAN1: CPU Fan Power Connector ........................................................................................................................22
FAN2: System Fan Power Connector ....................................................................................................................22
14 MB890 User’s Manual
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
DDC POWER 14 C5 A GROUND2
A GROUND 1 15 C6 A GROUND3
Signal Name Pin # Pin # Signal Name
DATA 2- 1 16 HOT POWER
DATA 2+ 2 17 DATA 0Shield 2/4 3 18 DATA 0+
DATA 4- 4 19 SHIELD 0/5
DATA 4+ 5 20 DATA 5-
DDC CLOCK 6 21 DATA 5+
DDC DATA 7 22 SHIELD CLK
VSYNC 8 23 CLOCK -
DATA 1- 9 24 CLOCK +
DATA 1+ 10 C1 A RED
SHIELD 1/3 11 C2 A GREEN
DATA 3- 12 C3 A BLUE
DATA 3+ 13 C4 HYNC
MB890 User’s Manual 15
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/A
CN5, CN8: 1394 Connectors (option)
CN6: RJ45 and 2 USB Ports
CN6 is a stacked connector with RJ45 on top and 2 USB ports at the
bottom.
CN7: COM1 and COM2 Serial Ports
CN7 is a stacked connector with COM1 on top and COM2 at t he bottom.
Signal Name Pin # Pin # Signal Name
DCD, Data carrier detect 1 6 DSR, Data set ready
RXD, Receive data 2 7 RTS, Request to send
TXD, Transmit data 3 8 CTS, Clear to send
DTR, Data terminal ready 4 9 RI, Ring indicator
GND, ground 5 10 Not Used
16 MB890 User’s Manual
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