MSI MS-5184 User manual

CHAPTER 1 INTRODUCTION
1-1
Chapter 1
INTRODUCTION
The Baby-AT VI14 mainboard is a high-performance personal computer
mainboard. This mainboard supports Intel® Pentium® processor/Pentium®
processorwithMMXTM technology,Cyrix®/IBM®6x86/6x86L/6x86MX/MII,
AMD® K5/K6/K6-2, and IDTTM Winchip processors. The mainboard also
supports four 32-bit PCI (Peripheral Component Interconnect) Local Bus
standard slots.
The mainboard uses the highly integrated VIA® 598AT chipset to support
the AGP/PCI/ISA and Green standards, and to provide the Host/AGP bridge.
The VIA® 586B 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 VIA® 586B chipset also improves the IDE transfer rate by
supporting Ultra DMA/33 IDE that transfer data at the rate of 33MB/s.
The mainboard uses the programmable synchronous DC/DC controller for
advanced processors. Synchronous operation allows the elimination of heat
sinks in many applications. The mainboard also provides 22 output voltage
from1.80Vto3.50Vin 100mVincrements.
The mainboard also supports the System Hardware Monitor Controller as an
optional function. This function includes: CPU fan control, CPU tempera-
ture detect and protect & system voltage detect.

CHAPTER 1 INTRODUCTION
1-2
1.1 Mainboard Features
Processor
lSocket 7 supports Intel®Pentium®processor/Pentium®processor with
MMXTM technology.
lTheCyrix®/IBM®6x86/6x86L/6x86MX/MII,AMD®K5/K6/K6-2andIDTTM
Winchip processors are also supported.
Chipset
lVIA®MVP3chipset.
ClockGenerator
l66/75/83.3/95/100/112/124/133MHzclocksaresupported.
CacheMemory
lSupports 1MB (Pipelined Burst SRAM) L2 Cache.
MainMemory
lSupportsamaximummemorysize of 768MB.
lSupports six memory banks using two 168-pin DIMM and two 72-pin
SIMM.
lDIMM
- supports 3.3v EDO(Extended Data Output) and SDRAM.
- support Unbuffered DIMM.
Slots
lOne AGP(Accelerated Graphics Port) slot.
- AGP specification compliant
- AGP66/133MHz 3.3v device support
lFour 32-bit Master PCI Bus slots and two 16-bit ISA bus slots (wherein
one PCI/ISA is shared).
lSupports 3.3v/5v PCI bus Interface.

CHAPTER 1 INTRODUCTION
1-3
On-BoardIDE
lAn IDE controller provides IDE HDD/CD-ROM with PIO, Bus Master and
Ultra DMA/33 operation modes.
lCan connect up to four IDE devices.
On-BoardPeripherals
lOn-BoardPeripherals include:
- 1 floppy port supports 2 FDD with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes.
-2 serial ports (COMA +COMB)
- 1 parallel port supports SPP/EPP/ECP mode
- 2 USB ports
- 1 IrDA connector for SIR.
lSwitching Regulator
- provides CPU with voltage range from 1.80v to 3.52v.
BIOS
lThe mainboard BIOS provides “Plug & Play” BIOS which detects the
peripheral devices and expansion cards of the board automatically.
lThe mainboard provides a Desktop Management Interface (DMI) func-
tion which records your mainboard specifications.
Dimension
lBaby-ATForm Factor : 24.4cm(L) x22.2cm(W)x4layers PCB
Mounting
l5 mounting holes.

CHAPTER 1 INTRODUCTION
1-4
1.2 Mainboard Layout
DIMM 2
VIA
MVP3
DIMM 1 SIMM2
SIMM1
AGP SLOT
PCI SLOT 2
PCI SLOT 3
PCI SLOT 4
PCI SLOT 1
ISA SLOT 1
BIOS
BATT
+VIA
586B
ISA SLOT 2
ATX
Power Supply
Socket 7
COM1
IDE 1
FDD1
AT Power Supply
IDE 2
COM2
LPT1
AT
Keyboard
JFAN1
JFP1
JRMS1 JVBAT1
SW2
1
JP5
1
SW1
JWOL1
JIR1
JMS1
JMODEM1 JVSB1
1
JP3
L2
Cache
L2
Cache
MS-5184 Baby AT VI14 Mainboard

CHAPTER 2 HARDWARE INSTALLATION
2-1
Chapter 2
Hardware Installation
2.1 Central Processing Unit: CPU
The BabyATVI14 mainboard operates with Intel® Pentium®processor/
Pentium® processorw/MMXTM technology, Cyrix®/IBM6x86/6x86L/
6x86MX, AMD®K5/K6/K6-2and IDTTM Winchip processors. It could
operate with 1.8V to 3.52V processors. The mainboard provides a 321-pin
ZIF Socket 7 for easy CPU installation. The CPU should always have a
cooling fan attached to prevent overheating.
CPU
CPU
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.
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.
2.1-1 CPU Installation Procedures

CHAPTER 2 HARDWARE INSTALLATION
2-2
2.1-2 CPU Core Speed Derivation Procedures
1. The DIP Switch SW1 is used to adjust the CPU, AGP, and PCI clock
frequency.
1 2 3 4 5 CPU AGP PCI
ON ON OFF OFF ON 133.3 88.7 44.3
ON OFF ON OFF ON 124 82.7 41.3
ON ON ON OFF ON 112 74.7 37.3
OFF OFF OFF OFF ON 100.2 66.6 33.3
ON OFF OFF OFF ON 95.25 63.5 31.7
OFF ON OFF OFF OFF 83.5 66.6 33.3
OFF OFF ON ON ON/OFF 75 75 37.5
OFF ON ON ON ON/OFF 66.8 66.6 33.4
SW1 Clock
CPU Clock
AGP Clock
1
3
JP3 DRAM Clock
1
3
a. The JP3 jumper setting is used to set the DRAM clock for CPU or
AGP.
We provide CPU Bus Frequency setting for over
100Mhz. But setting the Bus Frequency over 100MHz
may cause unstable or damaging result. We do not
quarantee overclocking. (Damages resulting from
overclocking will not be covered by the warranty or
entertained by our technical support)
!
WARNING!

CHAPTER 2 HARDWARE INSTALLATION
2-3
2. The SW2 (6, 7, & 8) is used to set the Core/Bus (Fraction) ratio of the
CPU. The actual core speed of the CPU is the Host Clock Frequency
multipliedby the Core/Bus ratio. For example:
If CPUClock = 66MHz
Core/Bus ratio = 3.5
then CPU core speed = Host Clock x Core/Busratio
= 66MHzx3.5
= 233MHz
6 7 8 Core/Bus Ratio
OFF OFF OFF 1.5
ON OFF OFF 2.0
ON ON OFF 2.5
OFF ON OFF 3.0
OFF OFF OFF 3.5
ON OFF ON 4.0
ON ON ON 4.5
OFF ON ON 5.0
OFF OFF ON 5.5
SW2 CPU

CHAPTER 2 HARDWARE INSTALLATION
2-4
2.1-3 Processor Voltage Setting
SW2
ON
1 2 3 4 5
a. VcoreVoltage Setting: SW2
The Dip Switch SW2 (1-5) is used to set the processor Vcore voltage
setting.
Note: Always consult vendor for proper CPU specification, before
setting the processor voltage (Vcore/Vio). Improper setting
may damage the processor and other components.

CHAPTER 2 HARDWARE INSTALLATION
2-5
1 2 3 4 5 Vcore
ON ON ON ON OFF 3.5
OFF ON ON ON OFF 3.40
ON OFF ON ON OFF 3.3
OFF OFF ON ON OFF 3.2
ON ON OFF ON OFF 3.1
OFF ON OFF ON OFF 3.0
ON OFF OFF ON OFF 2.9
OFF OFF OFF ON OFF 2.8
ON ON ON OFF OFF 2.7
OFF ON ON OFF OFF 2.6
ON OFF ON OFF OFF 2.5
OFF OFF ON OFF OFF 2.4
ON ON OFF OFF OFF 2.3
OFF ON OFF OFF OFF 2.2
ON OFF OFF OFF OFF 2.1
OFF OFF OFF OFF OFF 2.0
ON ON ON ON ON 2.05
OFF ON ON ON ON 2.0
ON OFF ON ON ON 1.95
OFF OFF ON ON ON 1.9
ON ON OFF ON ON 1.85
OFF ON OFF ON ON 1.8
SW2

CHAPTER 2 HARDWARE INSTALLATION
2-6
3.3V
3.45V
VI/O JP5
JP5
b. Vi/oVoltageSetting: JP5
The Jumper Switch JP5 is used to set the processor Vi/o voltage
setting.
1
10
9
2
1
10
9
2
1
10
9
2
3.6V
3.8V
4.0V
1
10
9
2
1
10
9
2
1
10
9
2