Intel MB884 User Manual
MB884
Socket LGA775 Pentium® 4
Intel® 915G Chipset
Industrial Motherboard
USER’S MANUAL
Version 1.0
Acknowledgments
Award is a registered trademark of Award Software International,
Inc.
PS/2 is a trademark of International Business Machines
Corporation.
Intel and Pentium 4 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.
Table of Contents
Introduction.......................................................1
Checklist..............................................................................1
Product Description.............................................................2
MB884 Specifications.........................................................3
Board Dimensions...............................................................4
Installations.......................................................5
Installing the CPU...............................................................6
ATX Power Installation ......................................................7
Installing the Memory.........................................................7
Setting the Jumpers .............................................................8
Connectors on MB884 ......................................................12
Watchdog Timer Configuration........................................24
Digital I/O Sample Code...................................................27
BIOS Setup.......................................................30
Drivers Installation......................................53
Intel 915G Chipset Software Intallation Utility................54
Intel 915G Chipset Graphics Driver..................................55
Realtek AC97 Codec Audio Driver Installation................56
Marvell 88E8053 LAN Drivers Installation......................57
Appendix...........................................................59
A. I/O Port Address Map...................................................59
B. Interrupt Request Lines (IRQ)......................................60
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iv
MB884 User’s Manual
Introduction
Checklist
Your MB884 Pentium
listed below:
• The MB884 motherboard
• This User’s Manual
• 1 Back I/O shield
• 1 IDE Cable
• 1 Floppy Cable
• 1 SATA Cable
• Optional 3 SATA Cables
• Optional Serial Port Cable
• 1 CD containing the following:
• Chipset Drivers
• Flash Memory Utility
®
4 motherboard package should include the items
INTRODUCTION
MB884 User’s Manual 1
INSTALLATIONS
Product Description
The MB884 LGA 775 Pentium
915G chipset that can utilize a single LGA775 processor of up to
4.0GHz or higher and supports FSB frequency of 533/800Mhz
(133MHz, and 200MHz HCLK respectively).
The 915G chipset is designed for use with the Pentium
1M Level 2 (CPU integrated) cache. The integrated MCH component
provides the CPU interface, DDR interface, Hub Interface and PCI
Express graphics interface.
Two DDR memory sockets supports DDR 400/333 SDRAM DIMM
modules of up to 2GB in capacity.
The board is designed with two Marvell 88E8053 PCI Express Gigabit
LAN single controllers. Four Serial ATA connectors offer 1.5
Gigabits/sec data throughput speed - faster than the most advanced
parallel ATA.
Expansion is provided by two PCI, one PCI Express x1 slots and one
PCI Express x16 slots. Other advanced features include six USB 2.0
ports, IrDA interface, digital I/O, two serial ports, watchdog timer and
audio function. Dimensions of the board are 9.5” by 9.5” (244mm x
244mm) in a Micro ATX form factor.
®
4 motherboard incorporates the Intel
®
4 processor with
2
MB884 User’s Manual
MB884 Specifications
Form Factor
CPU Type
CPU Voltage
CPU FSB
CPU FSB
Green / APM
CPU Socket
Chipset
BIOS
Cache
VGA
Gigabit LAN
Audio
Memory
Parallel IDE
Serial ATA Ports
USB
LPC I/O
RTC
Edge Connector
Onboard Header /
Connector
Expansion Slots
Power Connector
Watchdog Timer
System Voltage
Other Function
Board Size
Micro ATX
Intel Pentium 4
0.8375V~1.6V (VRD 10.1)
800MHz
Up to 3.8+ GHz
APM1.2
Socket 775
Intel® 915GV/915G Chipset
GMCH: 915GV/915G 1210-ball FCBGA
ICH6: 82801FB 609-ball mBGA; FWH
Award BIOS, supports ACPI Function
1M Level 2 (CPU integrated)
915GV built-in, supports CRT
Marvell 88E8053 PCI-Express Gigabit LAN controller x2
ICH6 Built-in Audio controller + AC97 Codec ALC658 6
Channels (Line-out, Line-in & Mic.)
2x DDR333/400 SDRAM DIMMs (w/o ECC), Max. 2GB (Dual
Channel)
ICH6 built-in one channel Ultra DMA 33/66/100
ICH6 built-in Serial ATA Controller, supports 4 ports
ICH6 built-in USB Version 2.0, supports 8 ports, implement 6
ports
Winbond W83627HF: IrDA x1, Parallel x1, COM1 (RS232),
COM2 (RS232/422/485), FDC 2.88MB (3-Mode supported),
Hardware monitor (3 thermal inputs, 4 voltage monitor inputs,
VID0-4 & 3 fan headers)
ICH6 built-in w/ on board Lithium Battery
- PS/2 Keyboard & Mouse, Quad USB stack connector x1
for USB1~4, RJ45 connector (w/ Gigabit transformer) x2
for LAN, DB15 x1 for VGA (CRT), DB9 x1 for COM1, DB26
x1 for Printer, Audio Din stack connector x1 for Line-out,
Line-in & Mic
- 5x2 pins box-header x1 for COM2
- 4x2 pins pin-header x1 for USB 5~6
- 20x2 pins (2.5mm pitch) box-header x1 for IDE1
- 17x2 pin box-header x 1 for Floppy
- 5 pins pin-header x1 for IrDA
- 10x2 pins pin-header x1 for other features (PWR LED,
Reset, Lock, HDD LED, SPKR, etc.)
- PCI x2, PCI Express (x1) x1, PCI Express (x16) x1
ATX 12V (24 pins + 4 pins)
Yes (256 segments, 0, 1, 2…255 sec/min)
+5V, +3.3V, +12V, -12V, 5VSB (2A)
Modem Wakeup & LAN Wakeup
244mm x 244mm
INTRODUCTION
MB884 User’s Manual 3
INSTALLATIONS
Board Dimensions
4
MB884 User’s Manual
INSTALLATIONS
Installations
This section provides information on how to use the jumpers and
connectors on the MB884 in order to set up a workable system. The
topics covered are:
Installing the CPU........................................................................ 6
ATX Power Installation............................................................... 7
Installing the Memory.................................................................. 7
Setting the Jumpers...................................................................... 8
Connectors on MB884............................................................... 12
Watchdog Timer Configuration................................................. 24
Digital I/O Sample Code............................................................ 27
MB884 User’s Manual 5
INSTALLATIONS
Installing the CPU
The MB884 motherboard supports an LGA 775 processor socket for
Intel® Pentium® 4 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.
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MB884 User’s Manual
INSTALLATIONS
ATX Power Installation
The system power is provided to the motherboard with the ATX1 and
ATX_12V power connectors. ATX1 is a 24-pin power connector and
ATX_12V is a 4-pin 12V power connector.
The 24-pin power connector can to be connected to a standard 20-pin
ATX power connector in a standard ATX power supply (Min. 400watt).
Note: The power supply 5VSB voltage must be at least 2A.
Installing the Memory
The MB884 motherboard supports two DDR memory sockets for a
maximum total memory of 2GB in DDR memory type. It supports
DDR333 when installed with CPUs that have clock speeds of 533MHz.
It supports DDR400 when installed with CPUs that have clock speeds of
800MHz. The board provides dual channel functionality for its DIMM
slots. DIMM1 is for one channel and DIMM2 is for another channel.
Basically, the system memory interface has the following features:
Supports two 64-bit wide DDR data channels
Available bandwidth up to 3.2GB/s (DDR400) for single-channel
mode and 6.4GB/s (DDR400) in dual-channel mode.
Supports 128Mb, 256Mb, 512Mb, 1Gb DDR technologies.
Supports only x8, x16, DDR devices with four banks
Registered DIMMs not supported
Supports opportunistic refresh
Up to 16 simultaneously open pages (four per row, four rows
maximum)
MB884 User’s Manual 7
INSTALLATIONS
Setting the Jumpers
Jumpers are used on MB884 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 MB884 and their respective functions.
Jumper Locations on MB884..........................................................9
JP1: COM2 RS232 +5V/+12V Power Setting..............................10
JP2: COM1 RS232 +5V/+12V Power Setting..............................10
JP3: RS232/422/485 (COM2) Selection....................................... 10
JP5: Clear CMOS Contents ..........................................................11
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MB884 User’s Manual
INSTALLATIONS
Jumper Locations on MB884
Jumper Locations on MB884 ...........................................................Page
JP1: COM2 RS232 +5V/+12V Power Setting .................................... 10
JP2: COM1 RS232 +5V/+12V Power Setting .................................... 10
JP3: RS232/422/485 (COM2) Selection.............................................. 10
JP5: Clear CMOS Contents................................................................. 11
MB884 User’s Manual 9
INSTALLATIONS
JP1: COM2 RS232 +5V/+12V Power Setting
JP1 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
Pin 5-6
Short/Closed
Normal
+5V
JP2: COM1 RS232 +5V/+12V Power Setting
JP2 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
Pin 5-6
Short/Closed
Normal
+5V
JP3: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
JP3, 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
Short:
1-2
9-11
10-12
15-17
16-18
Short:
3-4
7-9
8-10
13-15
14-16
Short:
5-6
7-9
8-10
13-15
14-16
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MB884 User’s Manual
INSTALLATIONS
JP5: Clear CMOS Contents
Use JP5, a 3-pin header, to clear the CMOS contents. Note that the
ATX-power connector should be disconnected from the motherboard
before clearing CMOS.
JP5 Setting Function
Pin 1-2
Short/Closed
Pin 2-3
Short/Closed
Normal
Clear CMOS
MB884 User’s Manual 11
INSTALLATIONS
[
Connectors on MB884
The connectors on MB884 allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors on MB884 and their respective
functions.
Connector Locations on MB884................................................... 13
ATX1: ATX Power Supply Connector.........................................14
ATX_12V: ATX 12V Power Connector......................................14
DIMM1: Channel A DDR Socket ................................................ 14
DIMM2: Channel B DDR Socket.................................................14
PCIE_2: PCI Express (x1) Slot.....................................................14
PCI1, PCI2: PCI Slots...................................................................14
PCIE_1: PCI Express (x16) Slot...................................................14
CN1: PS/2 Keyboard and PS/2 Mouse Connectors...................... 15
CN2: 4-port USB Connector ........................................................ 15
CN3, JP2: COM1/COM2 Serial Ports.......................................... 15
CN4: Parallel Port Connector.......................................................16
CN5: VGA CRT Connector..........................................................17
CN6: DUAL LAN RJ45 Connectors............................................17
CN7: Audio Connector.................................................................17
CN8, CN9, CN10, CN11: SATA Connectors .............................. 17
J1: Digital I/O Connector (4 in, 4 out).......................................... 18
J3: IrDA Connector ......................................................................18
J4: USB Connector.......................................................................18
J5: CD-In Audio Connector.......................................................... 18
J10: Wake On LAN Connector.....................................................19
J13: System Function Connector.................................................. 19
CPU_FAN1: CPU Fan Power Connector....................................21
CPU_FAN2: CPU Fan Power Connector.....................................21
FAN1, FAN2: System & Chassis Fan Power Connectors............21
FDD1: Floppy Drive Connector...................................................22
IDE1: Primary IDE Connectors....................................................22
LED1: LED for CPU Over-Voltage Protection............................23
LED3: Power On LED .................................................................23
LED5: Power Off LED.................................................................23
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MB884 User’s Manual
INSTALLATIONS
Connectors on MB884.......................................................................................................................................Page
ATX1: ATX Power Supply Connector..................................................................................................................14
ATX_12V: ATX 12V Power Connector ...............................................................................................................14
DIMM1: Channel A DDR Socket..........................................................................................................................14
DIMM2: Channel B DDR Socket..........................................................................................................................14
PCIE_2: PCI Express (x1) Slot..............................................................................................................................14
PCI1, PCI2: PCI Slots............................................................................................................................................14
PCIE_1: PCI Express (x16) Slot............................................................................................................................14
CN1: PS/2 Keyboard and PS/2 Mouse Connectors...............................................................................................15
CN2: 4-port USB Connector..................................................................................................................................15
CN3, JP2: COM1/COM2 Serial Ports...................................................................................................................15
CN4: Parallel Port Connector ................................................................................................................................16
CN5: VGA CRT Connector...................................................................................................................................17
CN6: DUAL LAN RJ45 Connectors.....................................................................................................................17
CN7: Audio Connector ..........................................................................................................................................17
CN8, CN9, CN10, CN11: SATA Connectors........................................................................................................17
J1: Digital I/O Connector (4 in, 4 out)...................................................................................................................18
J3: IrDA Connector................................................................................................................................................18
J4: USB Connector ................................................................................................................................................18
J5: CD-In Audio Connector...................................................................................................................................18
J10: Wake On LAN Connector..............................................................................................................................19
J13: System Function Connector...........................................................................................................................19
CPU_FAN1: CPU Fan Power Connector.............................................................................................................21
CPU_FAN2: CPU Fan Power Connector..............................................................................................................21
FAN1, FAN2: System & Chassis Fan Power Connectors.....................................................................................21
FDD1: Floppy Drive Connector.............................................................................................................................22
IDE1: Primary IDE Connectors.............................................................................................................................22
LED1: LED for CPU Over-Voltage Protection.....................................................................................................23
LED3: Power On LED...........................................................................................................................................23
LED5: Power Off LED..........................................................................................................................................23
MB884 User’s Manual 13
INSTALLATIONS
ATX1: ATX Power Supply Connector
Signal Name Pin # Pin # Signal Name
3.3V 13 1 3.3V
-12V 14 2 3.3V
Ground 15 3 Ground
PS-ON 16 4 +5V
Ground 17 5 Ground
Ground 18 6 +5V
Ground 19 7 Ground
-5V 20 8 Power good
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
ATX1 is a 24-pin ATX power supply connector.
ATX_12V: ATX 12V Power Connector
This connector supplies the CPU operation voltage
Pin # Signal Name
1 Ground
2 Ground
3 +12V
4 +12V
DIMM1: Channel A DDR Socket
DIMM1 is the first-channel DDR socket.
DIMM2: Channel B DDR Socket
DIMM2 is the second-channel DDR socket.
PCIE_1: External PCI Express (x16) Graphics Card Slot
PCIE_2: PCI Express (x1) Slot
PCI1, PCI2: PCI Slots
PCIE_1: PCI Express (x16) Slot
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MB884 User’s Manual
INSTALLATIONS
CN1: 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.
CN2: 4-port USB Connector
CN2 is a USB connector consisting of four ports stacked vertically.
Pin Signal Name
1 Ground
2 USB+
CN2
3 USB4 Vcc
CN3, JP2: COM1/COM2 Serial Ports
CN3 (COM1) is a DB-9 connector, while JP2 is a COM2 pin-header
connector.
COM1 COM2
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
MB884 User’s Manual 15
INSTALLATIONS
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal Name
RS-232 R2-422 RS-485
1 DCD TX- DATA2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX- NC
5 Ground Ground Ground
6 DSR RTS- NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
10 NC NC NC
CN4: Parallel Port Connector
CN4 is a DB-25 external connector situated on top of the VGA and serial
ports.
CN4 Parallel Port
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
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MB884 User’s Manual
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