BCM Advanced Research SQ596 User manual

SQ596
SQ 596 Pentium PCI
Mainboard
User s Manual

SQ596
Users Notice
Static Electricity Precaution
Static electricity can easily damage your SQ 596 mainboard. By observing a few basic
precaution can help you safeguard against damage that could result in expensive repairs.
Follow the simple measures below to protect your equipment from static electricity damage:
Keep the mainboard and other system components in their anti-static packaging until you are
ready to install them.
Touch a grounded surface before you remove any system component from its protective anti-
static packaging. Unpacking and installation should be done on a grounded, anti-static mat.
The operator should be wearing an anti-static wristband, grounded at the same points as the
anti-static mat.
After removing the mainboard from its original packing, only place it on a grounded, anti-
static surface component side up. Immediately inspect the board for damage. Due to shifting
during shipping, it is suggested that the installer press down on all of the socket ICs to
ensure they are properly seated. Do this only with the board placed on a firm flat surface.
During configuration and installation, touch a grounded surface frequently to discharge any
static electrical charge that may have built up in your body. The best precaution is to wear a
grounded wrist strap. When handling the mainboard or an adapter card avoid touching its
components. Handle the mainboard and adapter cards either by the edges or by the adapter
card s case mounting bracket.
The information presented in this publication has been carefully screened for reliability. The
manufacturer provides this manual As is with no warranties of any kind, either expressed
or implied, including but not limited to the implied warranties or conditions of this products
fitness for any particular purpose. In no event shall manufacturer be liable for any loss or
profits, loss of business, loss of data, interruption of business, or indirect, special, incidental,
or consequential damages of any kind, even if manufacturer has been advised of the
possibility of such damages arising from any defect or error in this manual or product. The
manufacturer has the right to change this specification without pre-notice.
Trademarks and product names appearing in this manual are may or may not be registered of
their respective holders.

SQ596
Table of Contents
1. INTRODUCTION......................................................................................... 1-1
1.1 HOW TO USE THISMANUAL.........................................................................1-1
1.2 ITEM CHECKLIST........................................................................................1-1
2. KEY FEATURES........................................................................................... 2-1
2.1 PRODUCTSPECIFICATION...........................................................................2-1
2.2 MAINBOARDOUTLOOK.............................................................................. 2-2
2.3 MAINBOARDLAYOUT.................................................................................2-3
3. INSTALLATION PREVIEW.......................................................................3-1
3.1 JUMPERS:...................................................................................................3-1
3.2 EXPANSIONSLOTS:....................................................................................3-1
3.3 AUDIO SUBSYSTEMCONNECTOR.................................................................3-1
3.4 CONNECTORS.............................................................................................3-2
3.5 INSTALLATIONSTEPS.................................................................................3-3
3.6 AUDIO SUBSYSTEMCONNECTOR............................................................... 3-12
3.7 CONNECTORS........................................................................................... 3-15
4. BIOS SETUP.................................................................................................4-1
4.1ENTERING SETUP........................................................................................4-1
4.2 THE MAIN MENU....................................................................................... 4-2
4.3 STANDARDCMOS SETUPMENU................................................................ 4-3
4.4 BIOS FEATURESSETUPMENU.................................................................... 4-7
4.5 CHIPSETFEATURESSETUPMENU.............................................................. 4-10
4.6 POWERMANAGEMENTSETUPMENU......................................................... 4-11
4.7 PNP/PCI CONFIGURATIONSETUPMENU................................................... 4-12
4.8 INTEGRATED PERIPHERALSMENU............................................................. 4-14
4.9 PASSWORDSETTING................................................................................. 4-16
4.10 IDE HDD AUTO DETECTION.................................................................. 4-17

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1
Introduction
How to use this Manual
This manual provides information necessary for SQ596 mainboard and is organized into 4
chapters. Its purpose is to explain the installation procedures and operations of the
mainboard as specified below.
1. Introduction :Manual information and checklist
2. Key Features : An overview specification of this mainboard
3. Installation : Instructions on how to setup the mainboard
4. BIOS setup : BIOS software setup information
Item Checklist
The SQ596 mainboard should contain following items( ). Immediately, contact to your
retailer if you discover any missing items, or any damage .
The SQ596 mainboard
This SQ596 users manual
1 parallel ribbon cable attached to a mounting bracket
1 IDE ribbon cable
1 Floppy ribbon cable
Floppy diskette(s) for the Sound Driver
Infrared (IrDA)module with ribbon cable(optional)
Pipeline Burst Cache Module (optional)
1 CD-In cable (optional)

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key Features
The SQ596 mainboard integrates the Pentium microprocessor, memory , and I/O
technologies and is designed to fit into a standard mini-ATX form factor chassis. Page 2-3
illustrates the mechanical form factor for the SQ596 mainboard.
Product Specification
Processor: The SQ596 supports Intel Pentium Processors P54C/P55C 75-200MHz,
and Cyrix 6x86 (M1/M2) Processors. The ZIF Socket 7 will support future Pentium
Overdrives.
L2 Cache: 0KB onboard upgradeable to 256KB or 512KB using a Pipeline Burst L2
COAST(cache on a stick) Module inserted into the cache expansion slot.
System memory: Supports four 72-pin SIMM modules using 4MB, 8MB, 16MB,
32MB or 64MB for a maximum 256MB. Memory supported is both Fast Page Mode
(FPM) and Extended Data Output (EDO). The memory must be 70ns (nano seconds)
or faster.
Chipset: Intel Triton 430HX PCIset as the core chipset with a UMC UM8669F super
I/O (input/output) controller chip & Creative 16C CT2505 PnP Sound controller chip.
Expansion Slots: Three 16-bit ISA slots and Four 32-bit PCI slots( one shared).
Super Multi-I/O: Two high-speed UART compatible serial ports and One parallel
port with ECP and EPP compatibility. One FDD header supporting either 5.25 or
3.5 (1.2 or 1.44/2.88MB) floppy drives. One IrDA TX/RX infrared port.
Audio Subsystem: Features a 16-bit stereo audio sub-system, on board
Joystick/MIDI connector, Line in port, Line out port ,Microphone in port, CD in
header, Speaker in connector and Wave table upgrade connector.
PS/2 mouse and PS/2 keyboard:Onboard PS/2 mouse Port and PS/2 Keyboard port.
PCI bus Master IDE Controller: Onboard PCI Bus Master IDE controller with 2
ports to support 4 IDE devices. This controller supports PIO Mode 3 and Mode 4 with
a data transfer rate up to 17MB per second. The Bus Master IDE DMA Mode 2
transfer up to 22MB per second.
PCI BIOS: Win 95 Plug and Play with Green feature
Universal Serial Bus: Two standard USB connectors supporting up to 48MHz and
127 peripheral devices.
Mechanical: Mini-ATX form factor 210mm x 285mm

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Mainboard Outlook

SQ596
3
Mainboard Layout
JP14
J28
JP4
Pipeline BurstLevel2Cache Expansion
Powe
r
Conn
.
ZiFSocket7
Ptr.
Secondary IDE Conn.
J29
J27
JP5
J17 J18
IDE1IDE0
J
8
B
J16
JP1
JP51
J7
J11
82439HX
CT2505
82317SB
S
I
M
M
S
l
o
t
1
S
I
M
M
S
l
o
t
2
S
I
M
M
S
l
o
t
3
S
I
M
M
S
l
o
t
4
3
2
-
b
i
t
P
C
I
S
l
o
t
4
3
2
-
b
i
t
P
C
I
S
l
o
t
3
3
2
-
b
i
t
P
C
I
S
l
o
t
2
3
2
-
b
i
t
P
C
I
S
l
o
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1
1
6
-
b
i
t
I
S
A
S
l
o
t
1
6
-
b
i
t
I
S
A
S
l
o
t
1
6
-
b
i
t
I
S
A
S
l
o
t
UMC
8669
PnPBIOS
R
T
C
Line Out
MicIn
Line In
Joystick
KBD
MOUS
COM1
C
O
M
2
USB 1
U
S
B
2
J6
J
J19
J14
J15
J12
J13
J9
J10
PS-LED
J20
JP
7
CD-In

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Installation Preview
Before you install the SQ596 mainboard into the system chassis you may find it convenient
to first configure the mainboard hardware. This section describes how to configure the
jumper settings, install memory modules, and how to attach the various system components.
Before using your computer you must review the following 6 steps :
1. Jumpers settings.
2. Installation of DRAM memory modules
3. Installation of the CPU
4. Installation of expansion cards
5. Installation of IDE, I/O cables and the power supply connection.
6. Setup of the system BIOS software
Jumpers:
JP1,JP51,JP52 CPU voltage regulator output selection
JP14 Clear CMOS RAM
JP7 , JP8 CPU external clock(Bus) frequency selection
JP4(= BF0) CPU (Bus) frequency ration
JP5(= BF1) CPU(Bus) frequency ration
Expansion Slots:
SIMM Sockets DRAM SIMM Module Sockets
Cache Expansion Slot for L2 External Pipelined SRAM Module.
ZIF Socket 7 Socket for Central Processing Unit(CPU)
ISA Slots 1, 2, 3 16-bit ISA Bus expansion slots
PCI Slots 1,2,3,4 32-bit PCI Bus expansion slots
Audio Subsystem Connector
Line-Out(J2) Stereo line output jack
Mic-In(J4) Microphone input jack

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5
Line-In(J5) Stereo line input jack
Joystick/MIDI(J3) Joystick/MIDI port interface
Speaker-In (J6) Speaker-In connector (2-pin)
CD-In (J11) CD-In connector (4-pin)
Wave (J7) Wave connector (8-pin block)
Connectors
Keyboard (J9) PS/2 keyboard port (6-pin female)
PS/2 Mouse(J10) PS/2 mouse port (6-pin female)
Parallel Port(J19) Parallel port connector (26-pin Block)
Serial Port(J12/J13) Serial port COM1 & COM2 (9-pin male)
Floppy Drive(J16) Floppy drive connector (34-pin Block)
Power Input (J8B) ATX Power Connector (20-pin male)
Primary IDE(J18) Primary IDE connector( 40-pin Block)
Secondary IDE(J17) Secondary IDE connector (40-pin Block)
USB Connector(J14/J15) 2 USB ports USB 0 & USB 1 (4-pin male)(Optional)
IrDA(J23) IrDA connector (5-pin)
Key Lock(J22) Keyboard lock switch connector (5-pin)
ATX P/S Switch(JP50) ATX power supply switch connector (2-pin)
HDD LED(J21) Hard Disk drive LED connector (4-pin)
ATX P/S LED(J20) ATX power supply LED connector (2-pin)
Speaker(J27) Speaker connector (4-pin)
Suspend Switch(J28) SMI suspend switch connector (2-pin)
Reset Switch(J29) Reset switch connector (2-pin)
WARNING: Do not apply power if the mainboard appears damaged or items are missing
on the mainboard .

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Installation Steps
Jumper Settings
You can configure the hardware options by setting jumpers on the mainboard. A jumper is a
set of two or more metal pins in a plastic base attached to the mainboard. A plastic jumper
cap with a metal(conductive) plates inside fits over two pins to create an electrical contact
or short between them. This contact establishes a hardware setting and is referred to as a
closed jumper setting.
Some jumper have two pins while others may have three or more. Jumpers are sometimes
combined into sets called jumper blocks where all the jumpers in the block must be set
together to establish a hardware setting. In this manual the jumper settings will be described
graphically using a triangle ( )always marking pin 1. Those jumpers with two pins will be
shown as closed and open. A jumper is referred to as closed by placing the plastic jumper
cap over the two jumper pins and as open by removing the jumper cap. Some jumpers are
oriented vertically and other horizontally with pin 1 marked as (=P1).
Jumpers, Jumper caps, and Jumper blocks
Jumper
cap 2-pin jumper 3-pin jumper 4-pin jumper Jumper block
Setting 3-pin jumpers
P3P2P1
Jumper Pins 1 & 2 are closed with a jumper cap
P3P2P1
Jumper Pins 2 & 3 are closed with a jumper cap
Setting 2-pin jumpers
Setting 2-pin jumpers
This jumper is closed with the jumper cap is placed over 2 pins

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7
This jumper is open with the jumper cap moved from the 2 pins
WARNING: Some pins are used for connectors or power sources. These
are clearly marked separately from the jumpers listed in “Mainboard
Layout”. Any improper placing of jumper caps over these connectors
will result in damage to your mainboard
CPU VOLTAGE Selection Jumpers
The Pentium & Cyrix 6x86 processors have various voltage choices depending on the CPU
speed and the bin grade. These jumpers provide a way to select the different types of voltage
.
Intel Pentium Selection JP1 JP52 JP51
P54C
STD
(3.135V-3.6V)
P
2
P4
P6
P54C
VRE
(3.4-3.6V)
* (Manufacturer
default)
P
2
P4
P6
P55C
(2.5V)
P
2
P4
P6
Previous
marking
previous
recommended
nominal voltage
New marking New
recommended
nominal

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voltage
Blank
016
028
3.3V
3.3V
3.52V
3.3V or
3.52V
N/A
3.52V(028)
3.52V
N/A
3.52V
CMOS RAM Settings(Clear CMOS Data) (JP14)
The JP14 allows you to discharge the SQ596 mainboard CMOS memory and Real Time
Clock (RTC) data. The CMOS memory maintains the system configuration information and
the RTC provides the system with the date and time. Make sure this jumper is open for
normal operation.
Normal Mode
(Default)
Clear CMOS
Clear CMOS procedure :
The SQ596 mainboard uses a Benchmarq BQ3287AMT or DS12B887 chip. To clear the
stored CMOS data, power on with the JP14 closed and then do the following: 1) With the
system turned off, close JP14 2) Power on for a few seconds 3)Power off 4) Remove
JP14 5) Power on 6) Re-setup the BIOS (note: to bring up the BIOS setup menu, hold
down <DEL> during the system boot sequence)
NOTICE: Under some circumstances it is possible that the CMOS configuration settings
may be lost or corrupted causing the system to malfunction. This is not a serious problem. If
this happens, run the BIOS setup utility and re-enter your configuration settings. When you
restart the computer, the system should work normally.
CPU Type Selection {JP7,JP8,JP4(=BF0),JP5(= BF1)}
The system speed depends upon the frequency of CLOCK GENERATOR which is
determined by jumpers. These jumpers tell the system what speed to run at. Currently, this
mainboard speed range is from 75MHz to 200MHz. The CPU input frequency must match
the frequency of CLOCK GEN or it will cause the system to malfunction. For example,
setting a 75MHz CPU to run at 90MHz will cause the system to malfunction.

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Intel CPU
Setting
JP7 JP8 JP4(BF0) JP5(BF1)
75MHz
P1
P2
P
3
P1
P2
P3
90MHz
P1
P2
P
3
P1
P2
P3
100Mhz
(Manufacturer
default)
P1
P2
P
3
P1
P2
P3
120MHz
P1
P2
P3
P1
P2
P3
133MHz
P1
P2
P3
P1
P2
P3
150MHz
P1
P2
P3
P1
P2
P
3
166MHz
P1
P2
P3
P1
P2
P
3

SQ596
10
180MHz
P1
P2
P3
P1
P2
P
3
200MHz
P1
P2
P3
P1
P2
P
3
Cyrix6X86
Setting
JP7 JP8 JP4(BF0) JP5(BF1)
100MHz(=P120
+)
P1
P2
P3
P1
P2
P3
110MHz(=P133
+)
P1
P2
P3
P1
P2
P3
120MHz(=P150
+)
P1
P2
P3
P1
P2
P3
133MHz(=P166
+)
P1
P2
P3
P1
P2
P3
NOTICE: When installing the CPU into the CPU socket, be sure that PIN 1 of the CPU is
in the same corner as the PIN 1 of socket. The CPU is an extremely sensitive electrical
component and can be easily damaged by static electricity.
Expansion Slots
The SQ596 has 7 expansion slots on-board. Three are 16-bit ISA Bus expansion connectors
and four are 32-bit PCI expansion slots (include 1 shared) . One of the expansion slots is

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shared by connectors that will accommodate either an ISA or a PCI expansion card, but not
both at the same time. All four PCI expansion slots accept PCI Bus master cards and fully
support the PCI 2.1 specification.
SIMM Slots - System Memory (DRAM)
You can configure the system memory size in a variety of ways by in using different
combinations of the Four 72-pin DRAM SIMM modules. The memory must be 70ns(nano
seconds) or faster using either Fast Page Mode or Extended Data Output (EDO) types. The
memory table below shows the different memory size combinations available. Please pay
attention to the following restrictions :
You must use one pair of sockets at a time in sequence ( i.e.
SIMM1 and SIMM2, or all four sockets at once).
Each pair of modules must be the same size and speed and may
be single sided or double-side. Module sizes: Single-side SIMMs: 4MB,16MB;
Double-side SIMMs: 8MB,32MB
IMPORTANT: To support parity ECC check detection , you must use True 36-bit parity
type DRAM (i.e. 8 data chips + 4 parity chips) . Mixing 32-bit non parity DRAM (i.e 8
chips) and 36-bit parity DRAM will cancel the parity check detection feature.
Memory Module Combinations
Total Memory (Slot
1-4)
Bank A (Slot 1 &
2)
Bank B (Slot 3 &
4)
8MB 4MBx2 None
16MB 8MBx2 None
32MB 16MBx2 None
64MB 32MBx2 None
8MB None 4MBx2
16MB None 8MBx2
32MB None 16MBx2
64MB None 32MBx2
16MB 4MBx2 4MBx2
24MB 4MBx2 8MBx2
40MB 4MBx2 16MBx2

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72MB 4MBx2 32MBx2
24MB 8MBx2 4MBx2
32MB 8MBx2 8MBx2
48MB 8MBx2 16MBx2
80Mb 8MBx2 32MBx2
40MB 16MBx2 4MBx2
48MB 16MBx2 8MBx2
64MB 16MBx2 16MBx2
96MB 16MBx2 32MBx2
72MB 32MBx2 4MBx2
80MB 32MBx2 8MBx2
96MB 32MBx2 16MBx2
128MB 32MBx2 32MBx2
128MB 64MBx2 None
128MB None 64MBx2
256MB 64MBx2 64MBx2
Installation Procedure for System Memory
PIN1 of the SIMM module must match with the PIN1 of the
SIMM socket.
The module will only insert into the socket one way. An
orientation cut-out will prevent you from inserting it the wrong way.
Insert the DRAM module into the SIMM socket at a 45 degree
angle. If pin 1 of the SIMM does not line up with pin 1 of the socket, the SIMM will
not insert into the socket. After inserting the SIMM module completely into socket,
push the SIMM module into a vertical position.
The module should click into place with the retaining clips at
each end of the socket snapping behind the module to secure it.
To release the memory module push both retaining clips
outwards and carefully rock the module forward.

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IMPORTANT: Do not use SIMM modules that use an extra TTL chip to convert the
memory module from asymmetric to symmetric.
4x72-pinSIMM Sockets
M3 M4 M1 M2
1Four72-pinSIMMSocket
72-pinn SIMM Module(doubleside)
1
Insertthe SIMM Moduleintothe
SIMM Socketat45 degree angle.
Cache Expansion - L2 External Pipelined Burst SRAM
The SQ596 provides an upgradeable secondary (second level or L2) cache using Pipeline
Burst SRAM. The Pipeline Burst (PB) SRAM provides performance similar to expensive
Synchronous Burst SRAM for only a slight cost premium over slower performing
Asynchronous SRAMs. The SQ596 mainboard defaults with 0K cache on-board, with a
second-level cache module you are able o upgrade to 256KB or 512KB. Instructions on how
to insert the cache modules are shown below.
NOTICE: The number of pins are different on either side of the break, therefore the module
will only fit in the orientation as shown.
L2 Upgrade Cache
Expansion Slot
42 Pins38 pins
256KB PB Cache Module512KB PB Cache Module
42 pins38 pins

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ZIF Socket 7 for Central Processing Unit(CPU)
The SQ596 comes with a 321-pin ZIF socket 7 for installing the CPU. The Socket 7 will also
support future Pentium up-grade processors. It is strongly recommended that a heatsink and
CPU cooling fan be used to prevent the CPU from overheating. (Tip) Applying a thermal
jelly between the CPU and the heatsink/fan will furture cool the CPU.
Installation Procedure(CPU)
To install a CPU, remember to take careful precaution against static electric discharge. The
basic procedure is as follows:
IMPORTANT: You must set jumpers JP7,JP8, JP4 & JP5 to the correct bus frequency
ratio as instructed on page 6-8 of Section 3 .
Turn off your system and disconnect the power source.
Remove the existing CPU from the ZIF socket by pulling the ZIF
lever upwards at a 90 degree angle.
Insert the CPU with the correct orientation as below shown. Use
the notched (white dot) corner of the CPU as your guide. The notch in the corner of
the CPU should correspond with PIN 1 of the ZIF socket (Notice: Pin 1 is the blank
corner of the ZIF socket with one hole missing)
Once the CPU is inserted close the socket’s lever.
WARNING: Without a fan, the CPU can overheat and will cause damage to both the CPU
and the SQ596 mainboard.
ZIFSocket7
BlankCorner
Notch
ISA & PCI Slots
The SQ596 mainboard has three 16-bit ISA and four 32-bit PCI Slots.

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Four32-bitPCISlot
Three 16-bitISA Slot
1
1Four32-bitPCISlots
Three 16-bit
I
S
A
S
l
o
t
s
Installation Procedure:
To install expansion cards, please read the expansion card’s documentation for instructions.
NOTICE: Some expansion cards require an IRQ to work and may cause a conflict. There
are total of 16 IRQs but only 6 are free for expansion cards. In case of a conflict please
contact the system manufacturer for technical support.
There are two types of ISA expansion cards, design-Legacy and PnP(Plug & Play). For
Legacy cards you must set the cards’ jumpers manually. For Plug & Play cards, your system
will arrange the IRQs automatically. You can verify the IRQ allocation either by using
Microsoft’s Diagnostic (MSD.EXE) utility which is in the Windows directory or through the
Windows 95 resources menu. An IRQ is automatically assigned to PCI expansion card. All
the PCI slots on the mainboard use an interrupt . Be sure that the jumpers on your PCI cards
are set to interrupt A.
Audio Subsystem Connector
The SQ596 mainboard features a 16-bit stereo audio sub-system. This audio subsystem is in
accordance with the Creative ViBRA CT2505 16C VLSI single combo chip combines with
the Yamaha OPL3 FM synthesizer. This solution is fully compliant with multimedia PC
Level 2 specifications and supports compatibility with Adlib, Sound Blaster Pro2.0 ,
Roland MPU-401 and Windows Sound System that meet today’s requirements of multi-
media applications. The CT2505 single combo chip provides the followings features:
ISA 16-bit Bus Interface Chip
Digital Audio Processor
High performance 16-bit Sigma Delta Stereo Codec
Sound Blaster 16 register compatible mixer with AGC
Joystick quad timer
Music synthesizer with DAC
Plug and Play support

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One 46MHz crystal for Digital Interface, Digital Audio
Processor, and Music Synthesizer
Audio I/O Access(Line-out, Mic-In, Line-In, & Joystick)
Line out jack : The Line out jack allows you to connect powered speakers or an external
amplifier for audio output.
Mic in jack:The Microphone in jack allows you to connect a microphone for voiceinput.
Line in jack: The line in jack allows you to connect devices such as a cassette, DAT, or
Minidisc player to the audio card for playback or recording.
Joystick/MIDI Connector: The joystick/MIDI connector allows you to connect a joystick or
MIDI kit (not both) to the audio system.
The joystick connector on the audio system is identical to that on a standard PC game control
adapter or game I/O port. You can connect any analog joystick with a 15-pin D-sub
connector. It also works well with any application that is compatible with the standard PC
joystick.
Normally, the MIDI kit contains a MIDI adapter with a joystick connector so that you can
plug in a joystick and a MIDI device simultaneously. The kit also comes with a sequencing
software that allows you to record, play back, and edit MIDI files.
Joystick/MIDIConnector(Upper)
Line InJack (Right)
Line OutJack (Left)
Microphone In(Middle)
Speaker-In(2-pin)(J6)
This connector makes it possible to redirect sound that normally comes from the PC
speakers to the external speakers connected to the audio.