MSI MS-5153 User manual

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1-1
The ATX TX3 mainbard is a high-performance personal computer
mainboard. This mainboard supports Intel®Pentium® processor and
Pentium®processorwithMMXTM technology,Cyrix®6x86/6x86L/6x86MX
processor, and AMD®K5/K6 processor. The mainboard also supports four
32-bit PCI (Peripheral Component Interconnect) Local Bus standard slots.
A cache subsystem is configured for 512K cache memory to improve overall
throughput.
The mainboard uses the highly integrated Intel® 83430TX chipset to support
the PCI/ISA and Green standards, and to provide the Host/PCI bridge. The
Intel® 82430TX chipset integrates all system control functions such as ACPI
(Advanced Configuration and Power Interface). The ACPI provides more
Energy Saving Features for the OSPM(OS Direct Power Management)
function. The Intel® 82430TX chipset also improves the IDE transfer rate by
supporting Ultra DMA/33 IDE that transfer data at the rate of 33MB/s.
The mainboard has an on-board Audio which uses Creative® Vibra 16X
chipset. The Creative® Vibra 16X chipset provides Windows applications like
Creative® Wavesynth and Sound Blaster 16 Utility that allows you to play
high quality music for Windows multimedia applications and computer
games.
The mainboard also supports the LM78 System Hardware Monitor
Controller as optional function. The LM78 function includes: CPU chassis/
power fan control, CPU temperature detect and protect, and chassis
intrusion detect.
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1.1 Mainboard Features
CPU
lSocket 7 supports Intel® Pentium®processor -- Pentium® processor w/
MMXTM technology.
lThe Cyrix® 6x86/6x86L/6x86MXand AMD® K5/K6processors are also
supported.
CacheMemory
lSupports Directed Map Organization and Write-Back Cache Policy.
lSupports 512K pipelined burst cache memory.
VRM
lVRM(Voltage Regulator Module) is on board. It provides power for the
processor.
ChipSet
lIntel® 82430TX PCI chipset.
MainMemory
lSupports Six memory banks using Three 168-pin DIMM sockets.
lUp to 256 Mbytes main memory.
lSupports Fast Page (FP) Mode, Extended Data Output (EDO) Mode and
SDRAM.
lSupports only unbuffered DIMM.
Slots
lFour 32-bit Master PCI Bus slots and Four 16-bit ISA bus slots. One
shared slot that can be used as ISA or PCI.
lSupports3.3V/5VPCIBusInterface.
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On-BoardPeripherals
lOn-BoardPeripherals include:
-1 floppy port supports 2FDD with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes.
-2 serial ports (COMA + COMB)
- 1 parallel port supports SPP/EPP/ECP mode
- 1 IrDA connector or Fast IrDA(reserved)
- 1 Consumer IR(reserved)
lSupports ACPI
On-BoardIDE
lAn IDE controller on the Intel® 82430TX PCI Chipset provides IDE HDD/
CD-ROM with PIO Bus Master and Ultra DMA/33 operation modes.
lCan connect up to 4 IDE devices.
On-BoardUSB
lSupports dual port USB(Universal Serial Bus).
On-BoardSystemHardwareMonitor(LM78)
- System Voltage Detect
- CPU and Chassis Fan Speed detect
- Chassis Intrusion detect(reserved)
- CPU temperature detect(reserved)
Creative® Vibra16xCT2510
lCodec, Mixer, Processor, CQM, Joystick I/F
lMicrosoft® PC97 compliant
lPnP
Supports 2 Devices: SB & Joystick
Resources(4IRQ, 38-bit DMA)
l16CLmixerwith extra mixerchannel(5 stereo, 2 mono)
lCreative® 3D Stereo Enhancement
lFullDuplex16-bitRecordandPlayback
lSupports Type-F and Demand Mode DMA
lAPM1.2

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BIOS
lThe system board BIOS provides “Plug & Play” BIOS which detects the
peripheral devices and expansion cards of the board automatically.
lThe system board provides a Desktop Management Interface(DMI)
function which records your system board specifications.
RTC
lNon-VolatileRTC.
KeyboardConnector
lPS/2® keyboard interface and PS/2® mouse interface.
Dimension
lATX FormFactor: 30.5cm(L)x18.6cm(W)x 4layerPCB.
lDouble deck I/O connectors, compatible with Intel® Venus mainboard.
Mounting
l6 mounting holes.
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1.2 Parts of the Mainboard
1-5
A
B
C
D
E
F
G
I
J
K
L
MN
H

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A PS/2 Ports Top: Mouse
Bottom:Keyboard
B USBPorts Top: Port1
Bottom: Port2
C COMPorts Top: Parallel
Bottom: Serial
D SoundPorts Top:Joystick/Midi
Bottom: Line-Out/Line-In/Mic
E Four32-BitPCI SLOTs
F Creative® Vibra16X
G LM78
H Four16-BitISASLOTs
I FlashBIOS
J Intel® PCIset 82371AB
K Intel® PCIset 82430TX
L 512KBPipelinedBurstL2Cache
M CPUSocket7
N Three168-pin DIMMSockets
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1.3 Mainboard Layout
MS-5153
1-7
ISA SLOT
ISA SLOT
ISA SLOT
PCI SLOT 4
PCI SLOT 3
PCI SLOT 2
PCI SLOT 1
DIMM 2
SOCKET 7
ISA SLOT
DIMM 1 DIMM 3
FDC
BATT
+
IDE1 BIOS
ATX
Power Supply
FW82371AB
FW82439TX
JGL
JFP
IDE2
JIR1
JRMS2
JBAT1
SW1
JFAN 2
JFAN 1
JRMS1
Top: JMS
Bottom:
JKB
Top: Port1
USB
Bottom:
Port2
Top: LPT
Bottom:
COMA
COMB
LM75
(optional)
LM78
(optional)
Top:MIDI/
Joystick
Bottom:
LineOut
LineIn
Mic
Creative
Vibra16X
J17
CD-LineIn
J16 J15
IMI643
JP2
JP4
JRMS3

CHAPTER2 HARDWAREINSTALLATION
CPU
CPU
2.1-1 CPU Installation Procedures
Chapter 2
Hardware Installation
2.1 Central Processing Unit: CPU
The ATX TX3 mainboard operates with Intel®Pentium® processor-
Pentium® processorwith MMXTM technology,Cyrix® 6x86/6x86L/6x86MX
and AMD® K5/K6 processors. It could operates with 2.0V to 3.52V proces-
sors. The mainboard provides a 321-pin ZIF Socket 7 for easy CPU
installation, a DIP switch (SW1) to set the proper speed for the CPU. The
CPU should always have a cooling fan attached to prevent overheating.
OpenLever
Pin1
Sliding
Plate
White dot/
Cut edge
Close
Lever
2-1
1. Pull the lever sideways away
from the socket. Then, raise
the lever up to a 90-degree
angle.
3. Press the lever down to
complete the installation.
2. Locate Pin 1 in the socket
and look for the white dot or
cut edge in the CPU. Match
Pin 1 with the white dot/cut
edge. Then, insert the CPU.
It should insert easily.

CHAPTER2 HARDWAREINSTALLATION
4 5 6 Clock
OFF OFF OFF 50MHz
OFF OFF ON 69.5MHz
OFF ON ON 78MHz
ON ON OFF 83.3MHz
ON OFF ON 85.5MHz
ON OFF OFF 100MHz
1. The mainboard supports different clock frequencies adjusted by SW1 pin
4, 5, and 6. See the following chart to set the different Host Clock
Frequencies.
4 5 6 Clock
ON ON OFF 55MHz
ON OFF OFF 60MHz
OFF OFF OFF 66MHz
OFF ON OFF 75MHz
OFF OFF ON 68.5MHz
SW1 CPU
2.1-2 CPU Core Speed Derivation Procedures
2-2
SW1 CPU
SpecialCPUClock
Note: If you’re going to use the special CPU
clock, then you must short JRMS3

CHAPTER2 HARDWAREINSTALLATION
2. The DIP Switch SW1 (1, 2, and 3) is used to set the Core/Bus (Fraction)
ratio of the CPU. The actual core speed of the CPU is the Host Clock
Frequency multiplied by the Core/Bus ratio. For example:
If CPUClock = 66MHz
Core/Bus ratio = 3/2
then CPU core speed = Host Clock x Core/Busratio
= 66MHzx3/2
= 100MHz
3. The PCI Bus Clock is the CPU Clock Frequency divided by 2.
1 2 3 Core/BusRatio
OFF OFF OFF 1.5/3.5
ON OFF OFF 2
ON ON OFF 2.5/1.75
OFF ON OFF 3
SW1 CPU
2-3
2.1-3 CPU Voltage
The mainboard voltage regulators can automatically detect and switch
between Single and Dual voltage. It can detect single voltage ranging from
3.38 volts to 3.52 volts. And dual voltage ranging from 2.0 volts to 3.2 volts.

CHAPTER2 HARDWAREINSTALLATION
2.1-4 CPU Speed Setting: SW1
To adjust the speed of the CPU, you must know the specification of your
CPU (always ask the vendor for CPU specificaton). Then, refer to Table 2.1
(Intel®Pentium® processor/Pentium® processorwithMMXTM technology),
Table 2.2 (Cyrix® 6x86/6x86L/6x86MXprocessor)and Table2.3(AMD®
K5/K6 processor) for proper settings.
SW1 1 2 3 4 5 6
ON ON
OFF
Speed Setting
2-4
DIP

CHAPTER2 HARDWAREINSTALLATION
Intel® Pentium® Processor with MMXTM Technology
Table 2.1 Intel®
Processor
2-5
ON DIP
123 456
ON
OFF
100MHz
120MHz
133MHz
150MHz
166MHz
200MHz
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
90MHz
CPU
Type CPU Speed
SW1
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
200MHz
233MHz
166MHz
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
Intel® Pentium® Processor

CHAPTER2 HARDWAREINSTALLATION
Table 2.2 Cyrix® Processor
Cyrix® processor uses PR to rate the speed of their processors based on
Intel® Pentium®processor core speed. For example, PR150 (120MHz) has
150MHz core speed of Intel®Pentium®processor but has 120MHz core
speed in Cyrix®processor. Cyrix® processor should always uses a more
powerful fan (ask vendor for proper cooling fan).
2-6
ON DIP
123 456
ON
OFF
PR133
(110MHz)
CPU
Type CPU Speed
SW1
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
PR166
(133MHz)
PR150
(120MHz)
Cyrix® 6x86 Processor
ON DIP
123 456
ON
OFF
PR166
Cyrix® 6x86L Processor

CHAPTER2 HARDWAREINSTALLATION
ON DIP
123 456
ON
OFF
PR166
(60x2.5)
CPU
Type CPU Speed
SW1
ON DIP
123 456
ON
OFF
PR200
(66x2.5)
(66x2)
Cyrix® 6x86MX Processor
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
(75x2)
PR233
(66x3)
(75x2.5)
PR266
(66x3.5)
(75x3)
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CHAPTER2 HARDWAREINSTALLATION
Table 2.3 AMD® Processor
AMD® processor uses PR to rate the speed of their processors based on
Intel® Pentium®processor core speed. For example, PR133 (100MHz) has
133MHz core speed of Intel®Pentium®processor but has 100MHz core
speed in AMD® processor.
2-8
AMD® K6 Processor
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
PR90
(90MHz)
CPU
Type CPU Speed
SW1
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
ON DIP
123 456
ON
OFF
PR100
(100MHz)
PR120
(90MHz)
PR133
(100MHz)
PR150
(105MHz)
PR166
(116.7MHz)
166MHz
200MHZ
233MHz
AMD® K5 Processor

CHAPTER2 HARDWAREINSTALLATION
2-9
2.1-5 CPU Fan Power Connectors: JFAN1 / JFAN2
These connectors supports system cooling fan with +12V. It supports three
pin head connector. When connecting the wire to the connector, always
take note that the red wire is the positive and should be connected to the
+12V, the black wire is Ground and should be connected to GND. If your
mainboard has LM78 chipset on-board, you must use a specially designed
fan with speed sensor to take advantage of LM78’s CPU fan control.
JFAN2
SPEED
+12V
GND
Note: 1. JFAN1 is the Chassis Cooling Fan Speed Connector (reserved for
LM78System Hardware Monitor Option.)
2. Always consult vendor for proper CPU cooling fan.
For fans with fan speed sensor, every rotation of the fan will send out 2
pulses. LM78 will count and report the fan rotation speed.
JFAN1
SPEED
+12V
GND

CHAPTER2 HARDWAREINSTALLATION
2.2 Flash ROM Programming Voltage: JP2
This jumper is for setting the Voltage of the Flash ROM BIOS.
2-10
Note: a. If you use Winbond or SST Flash ROM, short 1-2 .
b. If you use Intel or MXIC Flash ROM , short 1-2 pin.
If you want to flash the ROM data, short 2-3, then put it back to 1-2.
Voltage Setting
JP2
1
3
JP2 JP2
+12V
+5V
(default)
11
3
3

CHAPTER2 HARDWAREINSTALLATION
2.3 Flash ROM Boot Block Programming: JP4
This jumper is for setting the boot block area of the Flash ROM BIOS to
allowprogramming.
JP4
1
3
JP4 JP4
EnableDisable
11
3
3
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CHAPTER2 HARDWAREINSTALLATION
2.4 External Battery Connector: JBAT
A battery must be used to retain the system board configuration in CMOS
RAM. If you use the on-board battery you must short pins of JBAT to keep
the CMOS data.
2-12
Keep Data Clear Data
JBAT
1
3
11
3
3
Note: You can clear CMOS by shorting 2-3 pin, while the system is off.
Then, return to 1-2 pin position. Avoid clearing the CMOS while
the system is on , it will damage the mainboard.

CHAPTER2 HARDWAREINSTALLATION
2.5 Power Saving LED Connector: JGL
Attach a power LED to JGL. This LED will lit to show that the system is in
suspend mode.
2-13
JGL