This equipment has been tested and found to comply with the limits of a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment ge nerates, uses, and can radiate radio frequency
energy and, if not i nstalled and used in accordance with the instructions, may
cause harmful interference to radio communications. There is no guarantee
that interference will not occur in a particular installation.
The vendor makes no representations or warranties with respect to the
contents here and specially disclaims any implied warranties of merchantability
or fitness for any purpose. Further the vendor reserves the right to revise this
publication and to make changes to the contents here without obligation to
notify any party beforehand.
Duplication of this publication, in part or in whole, is not allowed without first
obtaining the vendor’s approval in writing.
The content of this user’s manual is subject to be changed without notice and
we will not be responsible for any mistakes found in this user’s manual. All the
brand and product names are trademarks of their respective companies.
Japanese ................................................................................................................ 48
CHAPTER 1: INTRODUCTION
P4M900-M4
1.1 B
EFORE YOU START
Thank you for choosing our product. Before you start installing the
motherboard, please make sure you follow the instructions below:
Prepare a dry and stable working environment with
sufficient lighting.
Always disconnect the computer from power outlet
before operation.
Before you take the motherboard out from anti-static
bag, ground yourself properly by touching any safely
grounded appliance, or use grounded wrist strap to
remove the static charge.
Avoid touching the components on motherboard or the
rear side of the board unless necessary. Hold the board
on the edge, do not try to bend or flex the board.
Do not leave any unfastened small parts inside the
case after installation. Loose parts will cause short
circuits which may damage the equipment.
Keep the computer from dangerous area, such as heat
source, humid air and water.
1.2PACKAGE CHECKLIST
HDD Cable X 1 User’s Manual X 1 Fully Setup Driver CD X 1 Rear I/O Panel for ATX Case X 1 FDD Cable X 1 (optional) Serial ATA Cable X 1 (optional) USB 2.0 Cable X1 (optional) S/PDIF Cable X 1 (optional) Serial ATA Power Cable X 1 (optional)
3
Motherboard Manual
1.3 MOTHERBOARD FEATURES
Ver 5.x Ver 6.x
Socket 478
Int el Pent ium 4 / C elero n D processor up to
CPU
FSB 400 / 533 / 800 MHz 400 / 533 / 800 MHz
Chipset
Graphic
Super I/O
Main
Memory
IDE
SATA
3.4 GHz (Do not support Willamette CPU.)
Supports Hyper Threading technology
*It is recommended to use processors with
95W power consumption.
VIA P4M900
VIA VT8237A
Chrome9 HC 3D / 2D Graphics
Max Shared Video Memory is 256 MB
ITE 8718F
Provides the mos t commonly used legacy
Super I/O functionality.
Low Pin Count Interface
En vir onment Con t ro l in it iat ives ,
H/W Monito r
Fan Speed Controller
ITE's "S mart Guardian" function
DIMM Slots x 2
Supports DDR2 533 / 667
Each DIMM supports 256/512MB/1GB/2GB
DDR2
Max Memo ry Cap ic it y 4G B
Single Channel Mode DDR2 memory
mod ule
Registered DIMM and ECC DIMM is not
supported
Int egr at ed IDE Contr o ller
Ultra DMA 33~133 Bus Master Mode
supports PIO Mode 0~4,
Integrated Serial ATA Controller
Data transfer rates up to 1.5 Gb/s.
SATA Vers io n 1.0 sp ecific ation compli an t .
Socket 478
Int el Pent ium 4 / C elero n D processor up to
3.4 GHz (Do not support Willamette CPU.)
Supports Hyper Threading technology
*It is recommended to use processors with
95W power consumption.
VIA P4M900
VIA VT8237A
Chrome9 HC 3D / 2D Graphics
Max Shared Video Memory is 256 MB
ITE 8718F
Provides the mos t commonly used legacy
Super I/O functionality.
Low Pin Count Interface
En vir onment Con t ro l in it iat ives ,
H/W Monito r
Fan Speed Controller
ITE's "S mart Guardian" function
DIMM Slots x 2
Supports DDR2 533 / 667
Each DIMM supports 256/512MB/1GB/2GB
DDR2
Max Memo ry Cap ic it y 4G B
Single Channel Mode DDR2 memory
mod ule
Registered DIMM and ECC DIMM is not
supported
Int egr at ed IDE Contr o ller
Ultra DMA 33~133 Bus Master Mode
supports PIO Mode 0~4,
Integrated Serial ATA Controller
Data transfer rates up to 1.5 Gb/s.
SATA Vers io n 1.0 sp ecific ation compli an t .
4
Ver 5.x Ver 6.x
Realtek RTL 8201CL PHY
LAN PHY
Sound
Codec
Slots
On Board
Connector
Back Panel
I/O
Board Size 190 mm (W) x 244 mm (L) 190 mm (W) x 244 mm (L)
OS
Support
10 / 100 Mb/s auto negotiation
Half / Fu ll du p lex capabi lity
ALC883
7.1 channels audio out
High- D ef in it io n A udio s upport
PCI Express x 16 slot x1 PCI Express x 16 slot x1
PCI Express x 1 slot x1 PCI Express x 1 slot x1
PCI slot x2 PCI slot x2
Floppy connecto r x1 Floppy connector x1
Printer Port connector x1 Printer Port co nnector x1
IDE Connector x2 IDE Connector x2
SATA Connector x2 SATA Connector x2
Front Panel Connector x1 Front Panel Connector x1
Front Audio Connector x1 Front Audio Connector x1
CD-in Connector x1 CD-in Connector x1
S/PDIF out co nnector x1 S/PDIF out connector x1
CPU Fan header x1 CPU Fan header x1
System Fan header x1 System Fan header x1
Clear C MOS header x1 Clear C MOS header x1
USB connector x2 USB connector x2
Power Connector (24pin) x1 Power Connector (24pin) x1
Power Connector (4pin) x1 Power Connector (4pin) x1
PS/2 Keyboard x1
PS/2 Mous e x1
Serial Port x1
VGA Port x1
LAN port x1
USB Port x4
Audio Jack x6
Windows 2000 / XP / VISTA
Biostar Reserves the right to add or remove
support for any OS with or without notice.
Realtek RTL 8201CL PHY
10 / 100 Mb/s auto negotiation
Half / Fu ll du p lex capabi lity
VT1708B / ALC662 / ALC861VD
5.1 channels audio out
High- D ef in it io n A udio s upport
PS/2 Keyboard x1
PS/2 Mous e x1
Serial Port x1
VGA Port x1
LAN port x1
USB Port x4
Audio Jack x3
Windows 2000 / XP / VISTA
Biostar Reserves the right to add or remove
support for any OS with or without notice.
P4M900-M4
5
Motherboard Manual
1.4REAR PANEL CONNECTORS (FOR VER 5.X)
PS/2
Mouse
PS/2
Keyboard
COM1VGA
Center
Rear
Side
Line In
Line Out
Mic In
LAN
USBX2USBX2
1.5REAR PANEL CONNECTORS (FOR VER 6.X)
PS/ 2
Mouse
LAN
AUDIO JACK
Line In/
Surround
Line Out
PS/2
Keyboard
Since the audio chip supports High Definition Audio Specification, the function of each audio
jack can be defined by software. The input / output function of each audio jack listed above
represents the default setting. However, when connecting external microphone to the audio
port, please use the Line In (blue) and Mic In (Pink) audio jack.
6
COM1VGA
USBX2USB X2
Mic In 1/
Bass/ Center
1.6MOTHERBOARD LAYOUT
P4M900-M4
JKBMS1
J
C
O
M
1
JVGA1
JU SB1
JUSBLAN1
JA UDIO1
(for Ver 5.x)
JA UDIO2
(for Ver 6.x)
JP RNT 1
JUSBV1
JATXPWR2
LAN
Socket 478
CPU1
P4M900
PU
JCF AN1
JATXPWR1
DIM M1
DIM M2
IDE1
IDE2
Super
I/O
BIO S
Codec
Note: represents the 1■
PCI-EX1_1
JCDIN1
JA UDIOF1
PCI -EX1 6
BAT1
PC I1
PC I2
JSPDIF_OUT1
st
pin.
FDD1
JUSB2
JU SB3
JUSBV2
VIA
VT8237A
JCMOS1
JPAN EL1
JSATA2
JSATA1
JSF AN1
7
Motherboard Manual
CHAPTER 2: HARDWARE INSTALLATION
2.1 I
NSTALLING CENTRAL PROCESSING UNIT (CPU)
Step 1: Pull the lever sideways away from the socket and then raise the
lever up to a 90-degree angle.
Step 2: Look for the white dot/cut edge. The white dot/cut edge should
point wards the lever pivot. The CPU will fit only in the correct
orientation.
Step 3: Hold the CPU down firmly, and then close the lever to complete the
installation.
Step 4: Put the CPU Fan on the CPU and buckle it. Connect the CPU FAN
power cable to the JCFAN1. This completes the installation.
8
2.2 FAN HEADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
JCFAN1: CPU Fan Header
Pin
13
JSFAN1: System Fan Header
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
Pin
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
P4M900-M4
13
Note:
The JCFAN1/JSFAN1 support 3-pin head connector. When connecting with wires onto
connectors, please note that the red wire is the positive and should be co nnected to
pin#2, and the black wire is Ground and should be connected to GND.
9
Motherboard Manual
2.3 INSTALLING SYSTEM MEMORY
A. Memory Modules
DIM M1
DIM M2
1. Unlock a DIMM slot by pressing the retaining clips outward. Align a
DIMM on the slot such that the notch on the DIMM matches the
break on the Slot.
2. Insert the DIMM vertically and firmly into the slot until the retaining
chip snap back in place and the DIMM is properly seated.
B. Memory Capacity
10
DIMM Socket
Location
DIMM1 256MB/512MB/1GB/2GB
DIMM2 256MB/512MB/1GB/2GB
DDR Module
Total Me m o ry
Size
Max is 4GB.
P4M900-M4
2.4 CONNECTORS AND SLOTS
FDD1: Floppy Disk Connector
The motherboard provides a standard floppy disk connector that supports 360K,
720K, 1.2M, 1.44M and 2.88M floppy disk types. This connector supports the
provided floppy drive ribbon cables.
IDE1/IDE2: Hard Disk Connectors
The motherboard has a 32-bit Enhanced PCI IDE Controller that provides PIO
Mode 0~4, Bus Master, and Ultra DMA 33/66/100/133 functionality. It has two
HDD connectors IDE1 (primary) and IDE2 (secondary).
The IDE connectors can connect a master and a slave drive, so you can
connect up to four hard disk drives. The first hard drive should always be
connected to IDE1.
2
1
3940
21
34
33
IDE2IDE1
11
Motherboard Manual
PCI-EX16: PCI-Express x16 Slot
- PCI-Express 1.0a compliant.
- Maximum theoretical realized bandwidth of 4GB/s simultaneously per
direction, for an aggregate of 8GB/s totally.
PCI-EX1_1: PCI-Express x1 Slot
- PCI-Express 1.0a compliant.
- Data transfer bandwidth up to 250MB/s per direction; 500MB/s in total.
- PCI-Express supports a raw bit-rate of 2.5Gb/s on the data pins.
- 2X bandwidth over the traditional PCI architecture.
This motherboard is equipped with 2 standard PCI slots. PCI stands for
Peripheral Component Interconnect, and it is a bus standard for expansion
cards. This PCI slot is designated as 32 bits.
12
PCI1
PCI2
CHAPTER 3: HEADERS & JUMPERS SETUP
P4M900-M4
3.1 H
OW TO SETUP JUMPERS
The illustration shows how to set up jumpers. When the jumper cap is
placed on pins, the jumper is “close”, if not, that means the jumper is
“open”.
Pin opened Pin closed Pin1-2 closed
3.2 D
JPANEL1: Front Panel Header
ETAIL SETTINGS
This 16-pin connector includes Power-on, Reset, HDD LED, Power LED, Sleep
button and speaker connection. It allows user to connect the PC case’s front
panel switch functions.
PWR_LED
SLP
9
1
SPK
++
HL ED
+
On/Off
-
-
RST
16
8
Pin Assignment Function Pin Assignment Function
1 +5V 9 Sleep control
2 N/A 10 Ground
3 N/ A 1 1 N/ A N/A
4 Speaker
5 HDD LED (+) 13 Power LED (+)
6 HDD LED (-)
7 Ground 15 Power button
8 Reset control
Speaker
Connector
Hard drive
LED
Reset button
12 Power LED (+)
14 Power LED (-)
16 Ground
Sleep button
Power LED
Power-on button
13
Motherboard Manual
ATX Power Source Connector: JATXPWR1
JATXPWR1 allows user to connect 24-pin power connector on the ATX power
supply.
12
1
Pin Assignment Pin Assignment
24
13
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 Gro und 3 Gro und
16 PS_ON 4 +5V
17 Gro und 5 Gro und
18 Ground 6 +5V
19 Gro und 7 Gro und
20 NC 8 PW_OK
21 +5V 9 Standby Voltage+5V
22 +5V 10 +12V
23 +5V 11 +12V
24 Ground 12 +3.3V
JATXPW R2: AT X Power Source Connector
By connecting this connector, it will provide +12V to CPU power circuit.
Pin
1
23
4
Assignment
1 +12V
2 +12V
3 Ground
4 Ground
14
P4M900-M4
JUSB2/JUSB3: Headers for USB 2.0 Ports at Front Panel
This header allows user to connect additional USB cable on the PC front panel,
and also can be connected with internal USB devices, like USB card reader.