ENPC/ENlight EP-PS21 User Manual

User’ s Manual Rev . A

CONTENTS

1. Specification ................................................................. 2

2. Chipset on this Mother Board........................................... 4

3. Parts Of The Mother Board ............................................ 6

4. MotherBoard Layout Quick View ...................................... 7

5. Installation ................................................................ 8

5-1 Jumper Setting I 8
5-2 Jumper Setting II 9
5-3 Install System Memory Modules 1 1
5-4 Install the Central Processing Unit (CPU) 12
5-5 External Conncetion 13
5-6 Power On Procedure 21

Attached: BIOS Setup Tips.................................................. 22

Item Checklist

Please check that your package is complete. If you discover damaged or
missing items, please contact your retailer.
Motherboard x 1

40-pin IDE Connector Flat Cable x 1
34-pin Floppy Disk Drive Flat Cable x 1
User’ s Manual x 1
CD x 1
LDCM Diskette x 1 (Option)
USB Connector Cable with bracket x 1 (Option)

IrDA Module x 1(Option)
Option : Components will be include upon customer ordering instructions
per Proforma Invoice & additional external procurement cost will be
included.

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User’ s Manual Rev . A

1. Specifications

Microprocessor

Support Intel P54C/P55C, AMD K5/K6/K6-2, Cyrix M1/M2 and other
Pentium compatible CPUs. The Front Side Bus Supports 66/75/83/
95/100/1 12 MHz host bus clock, selectable by jumpers.
ZIF Socket 7 for CPU Insert.

Cache and System Memory

512KB pipeline burst synchronous SRAM
Three 168 pin dual in line memory module (DIMM) sockets
Support up to 768 MB of synchronous DRAM (SDRAM)

Chipset (SiS 530/5595 PCI AGP/VGA chip set)

SiS 530 PCI/AGP VGA controller
Integrated AGP VGA for hardware 2D/3D video/graphics
accelerators
Integrated PCI bus mastering controller
Integrated second level cache controller
SiS 5595 PCI system I/O controller
Multifunction PCI-to-ISA bridge
Universal Serial Bus (USB) and DMA controllers
Two fast IDE interfaces that support up to four IDE drives or devices
Power management logic
Real-time clock

Video/Graphics Subsystems

Integrated high performance & high quality AGP 2D/3D accelerator
Programmable 2MB, 4MB, and 8MB shared frame buffer
Optional 4MB, and 8MB local frame buffer (manufacturing option)
24 bit true color RAMDAC up to 230MHz pixel clock, supports 1024*768 8/16/
32 bpp @85Hz NI
DVD hardware accelerator

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User’ s Manual Rev . A

Audio Subsystems

ESS solo1 PCI 3D single chip audio controller
Mic-in, Line-out, Line-out, MIDI/Game port

I/O features

1 x FDD Port support up to 2.88MB
1 x Parallel Port (LPT) support ECP/EPP
2 x High Speed Serial (16C550 UART) Ports
2 x IDE Ports support Ultra DMA/33
2 x Universal Serial Bus (USB) Ports
1 x PS/2 Keyboard Port
1 x PS/2 Mouse Port
1 x IrDA Port
1 x VGA Port

Expansion slots

2 x 16-bit ISA Slots
3 x 32-bit PCI Slots

Other features

Award BIOS
Plug and Play compatible
Advanced Power Management (APM) 1.2 support
Advanced Configuration and Power Interface (ACPI) 1.0 support

Form factor

Micro ATX, 240mmX220mm

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User’ s Manual Rev . A

2. Chipset on this Mother Board

The Motherbaoard use the Chipset of SiS530 & SIS5595 where SIS 530 is
fuinction for Host, PCI, 3D A.G.P. Video/Graphics & Memory Controller
and the SiS5595 is function for PCI SYSTEM I/O.
The SiS530/5595 chipset, provides a high performance/cost index Desk­top/Mobile solution for the Intel Pentium P54C/P55C, AMD K5/K6/K6-II,
Cyrix M1/M2 and other compatible Pentium CPU with 3D A.G.P. VGA
system.
The Host, PCI, 3D A.G.P. Video/Graphics & Memory Controller, SiS530
integrates the Host-to-PCI bridge, the PCI interface, the L2 cache control­ler, the DRAM controller , the high performance hardware 2D/3D VGA con­troller, and the PCI IDE controller.
The Host interface supports Synchronous/Asynchronous Host/DRAM clock­ing configuration to eminently improve the system performance and DRAM
compatibility issues.
The L2 cache controller can support up to 512 KB P.B. SRAM, and the
DRAM controller can support SDRAM memory up to 768 MBytes.

The built-in fast PCI IDE controller supports the ATA PIO/DMA, and the
Ultra DMA33 function that support the data transfer rate up to 33 MB/s. It
provides the separate data path for two IDE channels that can eminently
improve the performance under the multi-tasking environment.
The A.G.P. internal interface is supported for integrated H/W 3D VGA con­troller. The integrated VGA controller is a high performance and targeted at
3D graphics application. In addition, the integrated 3D Video/Graphics con­troller adopts the 64bits 100MHz host bus interface high technology to im­prove the performance eminently . T o cost-effective the PC system, the share
system memory architecture will be adopted and it can flexibly using the
2MB, 4MB and 8MB frame buffer size from programming the system BIOS.
T o enhance the system performance, SiS530 also supports the local frame
buffer solution and memory sizes can support up to 8MB with SDRAM.

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User’ s Manual Rev . A

As for DVD solution, the integrated 3D VGA controller also support DVD H/W
accelerator to improve the DVD playback performance.
The SiS5595 PCI system I/O integrates the PCI-to-ISA bridge with the DDMA,
PC/PCI DMA and Serial IRQ capability , the ACPI/Legacy PMU, the Data Ac­quisition Interface, the Universal Serial Bus host/hub interface, and the ISA
bus interface which contains the ISA bus controller, the DMA controllers, the
interrupt controllers, the Timers and the Real Time Clock (RTC). It also inte­grates the Keyboard Controller and PS/2 mouse interface that can support
keyboard power on function for users to power on system by entering the hot
key or password from keyboard.
The built-in USB controller, which is fully compliant to OHCI (Open Host Con­troller Interface), provides two USB ports capable of running full/low speed
USB devices.
The Data Acquisition Interface offers the ability of monitoring and reporting
the environmental condition of the PC. It could monitor 5 positive analog volt­age inputs, 2 Fan speed inputs, and one temperature input.
In addition, SiS5595 also supports ACPI function to meet Advanced Configu­ration and Power Interface (ACPI) 1.0 specification for Windows 98 environ­ment, it can support power-management timer, Power button, Real-time clock
alarm wake up, more sleeping state, ACPI LED for sleeping and working state,
LAN wake up, Modem Ring In wake up, and OnNow initiative function.

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User’ s Manual Rev . A

3. Parts Of The Mother Board

Mouse

KeyBoard

USB 1
USB 2

Printer Port

COM Port

VGA Out

6

MIDI/GAME Port

OUT

IN MIC IN

User’ s Manual Rev . A

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4. MotherBoard Layout Quick View

CD IN (J2,J3)

ESS
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P

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1

2

SIS
5595

B

J4: WOL

I
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S

IR

J2J3

P

P

C

C

I

I

1

2

JP7:
CMOS Clear

Battery

Sound / GAME / MIDI / USB /
VGA / COM / KB / Mouse Po

DIMM

123

Video RAM
(Option)

FDD

Front Panel

JP4

SYS FANCPU FAN

TAG

SIS 530

JP5

COM2

ATX Power

IDE 2
IDE 1

JP1

J1

L2 Cache

Socket 7

JP3 JP2

Special Connector description
J1: L2 Cache Linear Mode or T oggle Mode Selection
J2: CD-IN Connector ( L, G, G, R )
J3: CD-IN Connector ( G, L, G, R )
J4: Wake On LAN Connector
JP1: Select the CPU VIO 3.3V Power Source
JP2: CPU Frequency Ratio Setting
JP3: CPU VID V oltage Setting
JP4: CPU Front Side Bus setting
JP5: CPU VIO V oltage setting ( When JP1 set to DISABLE )
JP7: CMOS Clear

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5-1 Jumper Setting I

1

JP1: 3.3V Power Source

2

1-2 Close

34
5

3-4 Close
5-6 Close

6

If set to Close, The 3.3V regulator (U15) should be removed

CD IN (J2,J3)

ESS
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P

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A

A

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3

2

S

S

L

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T

T

1

2

B
I
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S

SIS
5595

J4: WOL

IR

Battery

J2J3

P
C
I

1

JP7:
CMOS Clear

Sound / GAME / MIDI / USB /
VGA / COM / KB / Mouse Po

DIMM

JP4

123

TAG

SIS 530

Video RAM
(Option)

JP5

FDD

Front Panel

JP7: CMOS CLear

1-2 Clear CMOS
2-3 Normal ( Default )

From Power
Supply

COM2

ATX Power

SYS FANCPU FAN

L2 Cache x2

Socket 7

JP3 JP2

IDE 2
IDE 1

( Option )

1-2 Open
3-4 Open
5-6 Open

JP1

J1

Default

J1: Cache Mode

Open: Toggle Mode

3.3V depend on
the JP5

Close: Linear Mode

1

2
34
5

JP5: CPU VIO V oltage setting
(Option)

1-2 3.3V
3-4 3.52V
5-6 Reserve

6

1. CMOS Clear, which is a safety hook if you forget the password.

1

Clear the CMOS memory by momentarily shorting pins 1-2, for a

2

few seconds. Then restore it to the initial 2-3 jumper setting

3

2. If you found that the system Date and Time doesn’t work and the
machine always appear the CMOS data error message, please
check this jumper to correct this problem.

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User’ s Manual Rev . A

SD FS2 FS1 FS0

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5-2 Jumper Setting II

CD IN (J2,J3)

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A

S
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2

P

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C

A

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3

S
L
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1

ESS
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SIS
5595

P

P

C

C

I

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1

2

Sound / GAME / MIDI / USB /
VGA / COM / KB / Mouse Po

DIMM

JP4

123

Video RAM
(Option)

COM2

SYS FANCPU FAN

TAG

SIS 530

JP1

ATX Power

J1

L2 Cache

JP4

Socket 7

B
I
O
S

J4: WOL

IR

JP7:
CMOS Clear

Battery

FDD

Front Panel

DS2SF1SF0SF

JP5

JP3

IDE 2
IDE 1

JP2

BSFUPC

kcolC

NONONONOZHM66ZHM98

FFONONONOZHM66ZHM66
FFONONOFFOZHM57ZHM57

NONONOFFOZHM38ZHM66

FFONOFFONOZHM38ZHM38

NONOFFONOZHM59ZHM36

FFONOFFOFFOZHM59ZHM59

NONOFFOFFOZHM001ZHM66

FFOFFONONOZHM001ZHM001

NOFFONOFFOZHM211ZHM57

FFOFFONOFFOZHM211ZHM211

MARDS

kcolC

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User’ s Manual Rev . A

JP3

VID4 VID3 VID2 VID1 VID0

oitaR.qerFUPC0FB1FB2FB

5.3xro5.1xFFOFFOX

0.2xNOFFOX

5.2xNONOX

0.3xFFONOX

0.4xNOFFONO

5.4xNONONO

0.5xFFONONO

5.5xFFOFFONO

erocVUPC4DIV3DIV2DIV1DIV0DIV

JP2

V8.1NONOFFONOFFO

BF0 BF1 BF2

V0.2NONONONOFFO
V2.2FFOFFOFFONOFFO
V5.2FFOFFONOFFONO
V8.2FFONOFFOFFOFFO
V9.2FFONOFFOFFONO
V1.3FFONOFFONONO
V2.3FFONONOFFOFFO
V3.3FFONONOFFONO
V5.3FFONONONONO

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5-3 Install System Memory Modules

This motherboard support 3 slots for 168-pin 3.3V Non-buffered DIMM mod­ules, providing support for up to 256 MB of main memory using DIMM mod­ules from 8MB to 128MB. For 66MHz host bus CPUs, please use 10ns or
faster DIMM modules. For 100MHz host bus CPUs, please use 8ns or faster
DIMM modules. The following is the example to install the system SDRAM
memory module combination: if you have two DIMM Modules, you has better
install them into DIMM Slot 1 & Slot 2 with the Max possible memory size up
to 256MB ( 128 + 128 ) if the 128MB DIMM module is available.

Note: It is highly recommended to use the PC-100 Spec. DIMM module

ehtfosrebmuN

eludoMyromeM

1MMID2MMID3MMIDeziSyromeMeziS.xaM

1ts1BM652~8BM652
2ts1dn2BM652~8BM215
3ts1dn2dr3BM652~8BM867

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1

The DIMM types supported SDRAM (Synchro­nous DRAM). The following is the summary:

Single side:

1Mx64 (8MB), 2Mx64 (16MB), 4Mx64 (32MB),

CD IN (J2,J3)

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1

2

SIS
5595

B

J4: WOL

I
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IR

ESS
1938

P
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2

Battery

J2J3

DIMM

P
C
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1

JP7:
CMOS Clear

Front Panel

Sound / GAME / MIDI / USB /
VGA / COM / KB / Mouse Po

COM2

JP4

ATX Power

123

SYS FANCPU FAN

TAG

L2 Cache

SIS 530

Socket 7
Video RAM
(Option)

JP3 JP2

JP5

FDD

IDE 2
IDE 1

8Mx64 (64MB), 16Mx64 (128MB)

Double side:

JP1

J1

1Mx64x2 (16MB), 2Mx64x2 (32MB), 4Mx64x2
(64MB), 8Mx64x2 (128MB).

Total Memory Size:

There is no jumper setting required for the
memory size or type. It is automatically detected
by the system BIOS, and the total memory size
is to add them together.

Please Install the DIMM Module from DIMM Slot 1

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User’ s Manual Rev . A

5-4 Install the Central Processing Unit (CPU)

Step 1: Set the CPU Freqency Front Side Bus Clock (JP4)

DS2SF1SF0SF
NONONONOZHM66ZHM98

FFONONONOZHM66ZHM66
FFONONOFFOZHM57ZHM57

NONONOFFOZHM38ZHM66

FFONOFFONOZHM38ZHM38

NONOFFONOZHM59ZHM36

FFONOFFOFFOZHM59ZHM59

NONOFFOFFOZHM001ZHM66

FFOFFONONOZHM001ZHM001

NOFFONOFFOZHM211ZHM57

FFOFFONOFFOZHM211ZHM211

1. The SDRAM Clock will depending on the DIMM Module the User used.
The PC-100 spec. SDRAM basicly can support 100MHZ or above
Clock

2. The possible Front Side Bus setting are from 66 to 133 MHz.

3. If you want to overclock the CPU, please make sure the other
peripher als can work fine with one another. That mean you need to
well test the whole system with your own configuration, otherwise,
please set the default and safe setting with 66MHZ or 100MHZ
front side bus.

3. Please make sure you are using the correct DIMM module with the
related CPU type. For the 100MHZ or faster front side bus, you
need to use the PC100 type DIMM module.

BSFUPC

kcolC

MARDS

kcolC

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User’ s Manual Rev . A

Step 2: Set the CPU Freqency Ratio And the Vcore ( J2, J3 )

oitaR.qerFUPC0FB1FB2FB

5.3xro5.1xFFOFFOX

0.2xNOFFOX

5.2xNONOX

0.3xFFONOX

0.4xNOFFONO

5.4xNONONO

0.5xFFONONO

5.5xFFOFFONO

1. Normally , The CPU itself will mention about the Frequency and the
Clock Ratio and also the Voltage of the Vcore, Please refer to the
below two samples for the AMD K6-2 266 and the M II 300.

2. [ X ] means the setting will be ignore. If End-User want to use the
CPU with the Freq. Ratio 4 ~ 5.5 times, the BF2 need to well select
for the related CPU requirement.

erocVUPC4DIV3DIV2DIV1DIV0DIV

V8.1NONOFFONOFFO

V0.2NONONONOFFO
V2.2FFOFFOFFONOFFO
V5.2FFOFFONOFFONO
V8.2FFONOFFOFFOFFO
V9.2FFONOFFOFFONO
V1.3FFONOFFONONO
V2.3FFONONOFFOFFO
V3.3FFONONOFFONO
V5.3FFONONONONO

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User’ s Manual Rev . A

5-5 External Conncetion

1.Unplug your power supply when adding or removing expansion cards or
other system components. Failure to do so may cause severe damage to
both your motherboard and expansion cards.

2.Ribbon cables should always be connected with the red stripe on the Pin 1
side of the connector. The Four Corners of the connectors are labeled on the
motherboard. Pin 1 is the side closest to the power connector on hard drives
and floppy drives. IDE ribbon cable must be less than 18in. (46cm), with the
second drive connector no more than 6in. (15cm) from the first connector.

3.The motherboard requires a power supply and a “power good” signal. Make
the ATX power supply can take at least 10mAmp load on the 5V Standby
lead (5VSB) to meet the standard A TX specification.

4. To prevent electrical spikes, make sure that the power supply is not con­nected to an outlet when making or removing connections. Power supplies
contain power remains, which can damage electrical components.

5. Expansion Card Installation Procedure

! Read the documentation for your expansion card and make any

necessary hardware or software settings for your expansion card, such as
jumpers.

! Remove your computer system’ s cover and the bracket plate on the slot

you intend to use. Keep the bracket for possible future use.

! Carefully align the card’s connectors and press firmly.
! Secure the card on the slot with the screw you removed above.

! Replace the computer system’s cover.

! Set up the BIOS if necessary (such as IRQ xx Used By ISA: Yes in PNP

AND PCI SETUP)

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User’ s Manual Rev . A

5-5-1 Power Cable

Plug the connector from the power directly into the 20-pin male A TX PW con­nector on the motherboard as shown in the following figure. The plug from the
power supply will only insert in one orientation because of the different hole
sizes. Find the proper orientation and push down firmly making sure that the
pins are aligned and the power supply is off before connecting or disconnect­ing the power cable.

Make sure that your A TX power supply
can supply at least 10 mAmp on the 5­volt standby lead (5VSTB). Y ou may ex­perience difficulty in powering on your
system if your power supply cannot sup­port the load. For Wake on LAN sup­port, your A TX power supply must sup­ply at least 1 Amp.

You should plug in/out the Power Cable to/from the Mother Board more
carefully , all the Pins should be conect at the same time.

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User’ s Manual Rev . A

5-5-2 KB, Mouse, USB,COM and LPT

Mouse

Printer Port

MIDI/GAME Port

KeyBoard

PS/2 Keyboard Connector

The onboard PS/2 keyboard connector is a 6-pin Mini-Din connector
marked KB2.The view angle of drawing shown here is from back panel of
the housing.

Pin Description Pin Description

1 Keyboard Data 2 N.C.

3 Ground 4 +5VDC

5 Keyboard Clock 6 N.C.

PS/2 Mouse Connector

The onboard PS/2 mouse connector is a 6-pin Mini-Din connector marked
PS2.The view angle of drawing shown here is from back panel of the
housing.

Pin Description Pin Description

1 Mouse Data 2 N.C.

USB 1
USB 2

COM Port

VGA Out

Out

IN

MIC IN

3 Ground 4 +5VDC

5 Mouse CLK 6 N.C

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User’ s Manual Rev . A

USB (Universal Serial Bus Connector)

You can attach USB devices to the USB connector. The Mother board
contains two USB connectors, which are marked as USB. USB is a new
serial bus design that is capable of cascading low-/medium-speed peripherals
(less than 12Mbps) such as keyboard, mouse, joystick, scanner, printer
and modem/ISDN. With USB, complex cable connections at the back panel
of your PC can be eliminated.

Pin Description Pin Description

1 +5 VDC 5 +5VDC
2 DATA - 6 DATA­ 3 DATA + 7 DATA+

4 Ground 8 Ground

Serial Devices (COM1/COM2)

The onboard serial connectors are 9-pin D-type connector on the back Panel
of mainboard. The serial port 1 connector is marked as COM1 and the
serial port 2 connector is marked as COM2.

Printer Port ( LPT )

The onboard printer connector is a 25-pin D-type connector marked
PRINTER. The view angle of drawing shown here is from back panel of the
housing.

Line In

For the External Audio signal Input

Mic In

Connect to Microphone

Line Out ( Speaker Out )

Connect to Speaker

VGA Port

Connect to Monitor

MIDI / GAME Port

Connect to MIDI device or Game Pad or joystic

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User’ s Manual Rev . A

5-5-3 Front Panel Connection

IDE LED

PC Speaker

1). IDE Activity LED ( Pin 9,10)

This connector connects to the IDE (hard disk) activity indicator light on
the system abinet.

2). System Power LED ( Pin 15,16,17)

This 3-pin connector lights the system power LED when the
motherboard has power.

3). ACPI LED (Pin 7,8)

ACPI LED can use to control the blinking of a LED at the freqency of 1
HZ to indicate the system is at power saving mode

4). A TX Power Switch ( Pin 5,6 )

The system power is controlled by a push-switch, connected to this lead.
Pushing the button once will turn on the power and pushing again will turn
off the power. The system power LED shows that status of the system’s
power. If the power to the ATX power supply is interrupted while the
motherboard is on, standby power will remember that the motherboard
should be on and boot the computer when power is reapplied to the A TX
power supply .

5). Reset Switch ( Pin 1,2 )

This 2-pin connector connects to the case-mounted reset switch for
rebooting your computer without having to turn off your power switch.
This is a preferred method of rebooting in order to prolong the life of the
system’s power supply.

ACPI LED

Power SW

Power LED

Reset

Key Lock

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User’ s Manual Rev . A

5-5-4 FAN, CD IN, IR, WOL Connector

CPU FAN

SYS FAN

A. CPU & System Cooling FAN Connector:

This connectors support a CPU cooling fan of 500 mA (6WATT , +12V)
or less. Orient the fan so that the heat sink fins allow airflow to go across
the onboard heat sink(s). Depending on the fan manufacturer, the wir­ing and plug may be different. The red wire should be positive (+12V),
while the black should be ground. Connect the fan’s plug to the board
taking into consideration the polarity of the connector.

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User’ s Manual Rev . A

B. IrDA Compliant Infrared Module Connector

This connector support the optional wireless transmitting and receiving
infrared module. This module mounts to a small opening on system
cases that support this feature. You must also configure UART 2. Use
Infrared in Chipset Features Setup to select whether UART 2 is directed
for use with COM2 or IrDA. When IrDA is selected in BIOS, COM2 will
be disabled. Use the five pins as shown and connect a ribbon cable
from the module to the motherboard to the pin definitions.
Pin 1 Vcc
Pin 2 NC
Pin 3 IR_RX
Pin 4 GND
Pin 5 IR_TX

C. W ake-On-LAN (WOL)

Attach the 3-pin connector from the LAN card which supports the Wake­On-LAN (WOL) function to the WOL connector on the motherboard.
This WOL function lets users wake up the connected computer through
the LAN card. Please install according to the following pin assignment:

D. CD IN Connector

Provied 2 CD Audio Input Connectors that depending on the Cable
user have which connect from CDROM to This Connector

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User’ s Manual Rev . A

5-6 Power On Procedure

1.After all connections are made, close the system case cover.

2.Be sure that all switches are off (in some systems, marked with 0)

3.Make sure your power supply voltage is correctly set to 1 10V or 230V.

4.Connect the power supply cord into the power supply located on the back of
your system case according to your system user’ s manual.

5.Connect the power cord into a power outlet that is equipped with a surge
protector.

6.Y ou may then turn on your devices in the following order:
Y our monitor
External SCSI devices (starting with the last device on the chain)
Y our system power . For A TX power supplies, you need to switch on the power
supply as well as press the A TX power switch on the front of the case.

7.The power LED on the front panel of the system case will light. For ATX
power supplies, the system LED will light when the A TX power switch is pressed.
The monitor LED may light up after the system power up. if it complies with
“green” standards or if it has a power standby feature. The system will then
run power-on tests. While the tests are running, additional messages will ap­pear on the screen. If you do not see anything within 30 seconds from the time
you turn on the power, the system may have failed a power-on test. Recheck
your jumper settings and connections or call your retailer for assistance.

8.During power-on, hold down <Delete> to enter BIOS setup menu if you want
to run the BIOS Setup Utility .

Powering Off your computer: You must first exit or shut down your operating
system before switching off the power switch. For ATX power supplies, you
can press the A TX power switch after exiting or shutting down your operating
system. If you use Windows 95/98, click the Start button, click Shut Down,
and then click Shut down the computer. The system will give three quick beeps
after about 30 seconds and then power off after Windows shuts down.
The message “You can now safely turn off your computer” will not appear
when shutting down with A TX power supplies.

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