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.
PS/2 KB/Mouse, LPT, VGA, COM1, Dual triple DIN for
high definition audio, RJ45, USB x4
On Board Headers
/ Connectors
USB x 4, SATA x2, IDE1, FDD, COM2/3/4, IrDA, audio
(line out / Mic)
Power Connector
ATX 12V (24 pin + 8 pin)
System Voltage
+5V, +3.3V, +12V, -12V & 5VSB (2A)
Other
Modem Wakeup & LAN Wakeup
Watchdog Timer
Yes (256 segments: 0, 1, 2…, 255 s ec/min)
Digital I/O
4 In / 4 Out
BIOS Function
-
Power on after power fail
-
Boot from USBCDROM/USBZIP/USBHDD/USB/HDD
& PXE boot
-
Supports PC health monitoring for CPU, power supply,
Aux temperatures and voltages. Supports CPU
overheating protection
MB900-R Specifications
Remarks:
Pentium® 4 single core CPU. It also supports EMT64 processors.
MB900-R supports both Pentium® D dual core CPU and
2MB900-R User’s Manual
Board Dimensions
INTRODUCTION
MB900-R User’s Manual3
INSTALLATIONS
Installations
This section provides information o n how to use the jumpers and
connectors on the MB900 -R in order to set up a workable system. The
topics covered are:
Installing the CPU ................................................................ ........ 5
ATX Power Installation ................................ ............................... 6
Installing the Memory .................................................................. 6
Setting the Jumpers ................................................................ ...... 7
Connectors on MB900 -R ................................ ........................... 11
The MB900-R motherboard supports a n 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.
LGA775 socket must always be installed during transport to avoid
damage to the socket.
Please note that the cover o f the
MB900-R User’s Manual5
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 8-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 MB900-R motherboard supports two DDR2 memory sockets for a
maximum total memory of 2GB in DDR memory type. It supports DDR2
533/667.
Basically, the system memory interface has the following features:
Supports two 64-bit wide DDR data channels
Available bandwidth up to 5.3GB/s (DDR2 667) for single -channel
mode and 10.7GB/s (DDR2 667) in dual -channel mode.
Supports 256Mb, 512Mb, 1Gb DDR2 technologies.
Supports only x8, x16, DDR2 devices with four banks
Supports only unbuffered DIMMs
Supports opportunistic refresh
Up to 32 simultaneously open pages (four per row, four rows
maximum)
6MB900-R User’s Manual
INSTALLATIONS
Setting the Jumpers
Jumpers are used on MB900 -R to select various settings and features
according to your needs and applications. Contact your su pplier if you
have doubts about the best configuration for your needs. The following
lists the connectors on MB900 -R and their respective functions.
Jumper Locations on MB900 -R ......................................................8
JP7: CF Socket Master / Sla ve Selection ............................................. 10
8MB900-R User’s Manual
JP1, JP2, JP3: RS232/422/485 (COM2) Selection
COM2
Function
RS-232
RS-422
RS-485
Jumper
Setting
(pin closed)
JP1:
1-2
JP2:
3-5 & 4-6
JP3:
3-5 & 4-6
JP1:
3-4
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
JP1:
5-6
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
JP4
Setting
Function
Pin 1-2
Short/Closed
UDMA66 (default)
Pin 2-3
Short/Closed
Forced UDMA33
JP6
Setting
Function
Pin 1-2
Short/Closed
Normal
Pin 2-3
Short/Closed
Clear CMOS
COM1 is fixed for RS -232 use only.
COM2 is selectable for RS232, RS -422 and RS-485. COM3 and COM4
are fixed for RS-232 use only. The following table describes th e jumper
settings for COM2 selection.
JP4: IDE DMA Mode Setting
INSTALLATIONS
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.
MB900-R User’s Manual9
INSTALLATIONS
JP7
CF Mode
Slave
Master
JP7: CF Socket Master / Slave Selection
10MB900-R User’s Manual
INSTALLATIONS
[
Connectors on MB900 -R
The connectors on MB900 -R allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors o n MB900-R and their respective
functions.
ATX1: 24-pin ATX Power Connector ................................ .................13
ATX2: ATX 12V Power Connector ................................ .....................13
J1: Digital I/O Connector (4 in, 4 out) ............................................................................................................ 17
J3: Audio Front Header ................................................................ .................................................................. 17
J9: Wake On LAN Connector ................................................................ ........................................................ 18
J10: System Function Connector ................................ ................................................................ .................... 18