MSI MS-5156 User manual

CHAPTER 1 INTRODUCTION
Chapter 1
INTRODUCTION
The MS-5156 mainboard is a high-performance personal computer
mainboard. The mainboard supports the Peripheral Component Interconnect
(PCI) Local Bus standard and provides five 32-bit PCI bus slots.
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.
1-1

CHAPTER 1 INTRODUCTION
1.1 System Board Features
CPU
lSocket 7 supports Intel® Pentium® processors and Pentium® processors
with MMX™ technology
lTheCyrix®6x86/6x86L/6x86MX andAMD®K5/K6 are alsosupported.
Chipset
lIntel®82430TXchipset.
Cache Memory
lSupports 512K pipelined burst cache memory.
lSupports Direct Map Organization and Write-Back cache policy.
Main Memory
lSupports four memory banks using four 72-pin SIMM sockets and two
168-pin DIMM sockets (for unbuffered DIMM).
lUp to 256 Mbytes main memory.
lSupports EDO Hyper Page Mode DRAM, Standard Fast Page mode
DRAM and SDRAM(Synchronous DRAM).
Slots
lFive 32-bit PCI Bus slots (four 32-bit bus master PCI slots + one 32-bit
slave PCI slot) + Three 16-bit ISA bus slots. One shared slot can be used
asISAorPCI.
On-Board IDE
lSupports Bus Master and Ultra DMA/33 IDE.
lSupports up to 4 IDE drives.
On-Board Peripherals
1-2

CHAPTER 1 INTRODUCTION
1-3
lOn-BoardPeripherals include:
- 1 floppy port supports 2 FDD
-2serialports(COMA+COMB)
- 1 parallel port supports ECP or EPP mode
-USB
-IR(SIR)
Dimensions
lBaby-ATform factor
l25cm(L)x22cm(W)x4layerPCB
Mounting
l5 mounting holes

CHAPTER 1 INTRODUCTION
1.2 Parts of the Mainboard
ABC
DE
F
GH
I
J
A Three 16-Bit ISA SLOTs
B Five 32-Bit PCI SLOTs
C Two 168-Pin DIMM SOCKETs
D ATX 20-PinPOWER CONNECTOR
E PS/2®POWER CONNECTOR
F Four 72-pin SIMM SOCKETs
G Intel®82439TX
H Intel®82371AB
I SOCKET7
J 2032LITHIUM BATTERY
1-4

CHAPTER 1 INTRODUCTION
1.3 Mainboard Layout
1-5
MS-5156
ISA SLOT
ISA SLOT ISA SLOT
PCI SLOT 5
PCI SLOT 4
PCI SLOT 3
PCI SLOT 2 PCI SLOT 1
FDC
DIMM 2
DIMM 1
SIMM 4
SIMM 1 SIMM 2 SIMM 3
LPT
ATKBD
COMA
COM B
BIOS
ATX
Power Supply
USB
Power Supply
JRMS1
JMS1
JIR1
JP2
JP1 Winbond
J10
JBAT1
FW82371AB FW82439TX
IDE2
IDE1
BATT
+JV1
3.3V 5V
JRMC1
JRMS2
SW1
PBSRAM
SOCKET 7
JFAN 2
JFAN 1
JGS1
JGL1
JFP1
JV8
JV2
JV3
JV4
JV5
JSFAN
JPFAN

CHAPTER 2 HARDWARE INSTALLATION
CPU
CPU
2.1-1 CPU Installation Procedures
Chapter 2
HARDWARE INSTALLATION
2.1 Central Processing Unit: CPU
The MS-5156 mainboard operates with Intel®Pentium® processors/
Pentium®processors with MMXTM technology, Cyrix®6x86/6x86L/
6x86MX and AMD®K5/K6 processors. It could operate with 2.8V to
3.52V processors. 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
and a Jumper block (JV2 - JV5) for setting the CPU voltage. The CPU
should always have a cooling fan attached to prevent overheating.
2-1
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.
OpenLever
Pin1
Sliding
Plate
White dot/
Cut edge
Close
Lever
1. Pull the lever sideways away
from the socket. Then raise
the lever up to a 90-degree
angle.

CHAPTER 2 HARDWARE INSTALLATION
2-2
2.1-2 CPU Voltage Setting: JV2-JV5
VcoreV I/O
3.5 3.5
3.3 3.3
3.3 3.2
3.3 2.9
3.3 2.8
JV2~JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5

CHAPTER 2 HARDWARE INSTALLATION
VcoreV I/O
3.3 2.7
3.3 2.6
3.3 2.5
3.3 2.4
3.3 2.3
JV2~JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
3.3 2.2
3.3 2.1
JV2
JV3
JV4
JV5
JV2
JV3
JV4
JV5
2-3

CHAPTER 2 HARDWARE INSTALLATION
To adjust the speed and voltage of the CPU, you must know the specifica-
tions of your CPU (always ask the vendor for CPU specifications). Then
refer to Table 2.1 (Intel®processors), Table 2.2 (Cyrix®processors) and
Table 2.3 (AMD®processors) for proper setting.
2.1-3 CPU Speed and Voltage Setting: SW1 & JV2-JV5
2-4
SW1
1 2 3 4 5 6
ON DIP ON
OFF
JV2
JV3
JV4
JV5