Intel B785Z User manual

B785Z
0
CONTENTS
CH1. MOTHERBOARD FEATURE...........................................................1
!SPECIFICATIONS..........................................................................1
!POWER OFF CONTROL SOFTWARE .........................................3
!PACKAGING CHECK LIST ..........................................................3
CH2. SETUP GUIDE ....................................................................................4
!MAINBOARD LAYOUT DRAWING ...........................................4
!UMPER & CONNECTOR SETTING ...........................................5
CONNECTOR SETTING ...............................................................5
J7 OTHER JUMPER SETTING.....................................................8
CPU TYPE SELECT ......................................................................9
FAN CONNECTOR .....................................................................14
!HOW TO INSTALL THE CPU.....................................................15
!MEMORY INSTALLATION........................................................19
CH3. AWARD BIOS SETUP......................................................................22
!THE MAIN MENU .......................................................................24
!STANDARD CMOS SETUP ........................................................26
!BIOS FEATURES SETUP ............................................................28
!CHIPSET FEATURES SETUP .....................................................32
!POWER MANAGEMENT............................................................35
!PNP / PCI CONFIGURATION SETUP ........................................39
!INTEGRATED PERIPHERALS ...................................................41
!LOAD BIOS DEFAULT ...............................................................43
!LOAD SETUP DEFAULT ............................................................43
!SUPERVISOR / USER PASSWORD SETTING..........................43
!IDE HDD AUTO DETECTION....................................................44
CH4. SOFTWARE SETUP.........................................................................45
!INSTALLING THE IDE BUS MASTER DRIVER......................43
!INSTALLING THE AUDIO DRIVER (OPTIONAL) ..................44
HOW TO SETUP THE AUDIO DRIVER ....................................44
INSTALLING THE AUDIO APPLICATION (AP) .....................46
AudioRACK32 INTRODUCTION ...............................................47
REMARK
INTEL® is a registered trademark of Intel Corporation.
All other brands and product names are trademarks registered trademarks of their
respective companies.

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SPECIFICATIONS
System Chipset Intel®
44 ZX chip set
Processor
Single Slot 1 support
Intel Pentium®II processor 233Mhz ~ 55 Mhz.
Intel Celeron processor at 266-366Mhz.
Memory Subsystem Expandable to 256MB(2 banks) with 168-Pin
SDRAM(DIMM) Socket X2
AGP Slot AGP Interface Specification Rev 1. Compliant
Inte rated I / O
Two high speed 1655 compatible serial ports,
one Multi-Mode Parallel Port fixed
SPP/EPP/ECP standard
Two PCI Bus master Ultra DMA/33 IDE port (up
to 4 IDE Devices)
Support two 36 KB / 72 KB / 1.2MB / 1.44MB /
2.88MB / floppy disk driver
Support LS12 drives & ZIP 1 Drives
One PS/2 Mouse port
Support two USB ports
Support IrDA TX / RX header
Chapter 1
Motherboard Feature Introduction

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BIOS
2MB Award PnP BIOS with enhanced ACPI feature
for PC98 compliance.
Supports Trend ™ ChipAway AntiVirus.
DMI feature support
Support secondary device boot
Expansion slot
Three 32-bit PCI Slots & One 16-bit ISA Slots
Support 3.3/5V PCI 2.1 bus Interface
EXTRA Function
Suspend LED on/off
Win95 soft power off
External SMI
Wake up by ring
Wake on Lan
On Board
ESS1869 Sound Chip
One Line Out, One Line In
One MIC, One Game port
Others Windows 95/98 Compatible
Dimension Micro ATX size (244 x 18 mm), 4-layer PCB

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POWER OFF CONTROL SOFTWARE
The motherboard design supports software power off Control feature
through the SMM code in the BIOS under Win98/95 operating system
environment. This is INTEL Micro ATX form factor feature and you should
use ATX power supply.
First, you should connect the power switch cable (provided by the
ATX/AT case Supplier) to the connector [ PB_BT ] on the motherboard. In
the BIOS screen of “POWER MANAGEMENT SETUP”, choose “User
Defined”(or min power saving or Max power saving) in “POWER
MANAGEMENT” and choose “Yes” in “PM Control by APM”.
In Windows 95 the “ SHUT DOWN “ option , the computer’ s Power will
switch off automatically and put the PC in a suspend mode. This will be
indicated by a bunking power light. To restart the system , simply press the
Power Button.
PACKAGING CHECK LIST
The motherboard comes securely packed in a gift box and shipping carton.
If any of the above items are missing or damaged , please contact your
supplier.
The motherboard contains:
Q’ TY Description
1 Motherboard : With Intel ZX chipset
1 CD-title : Bus master driver
ESS Audio driver
1 Cable : FDD. IDE. Connector
1 Manual : User’ s manual

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Motherboard Layout Drawin
Chapter 2
Setup Guide
3V
Battery
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USB 1/2
T: LPT1
B:COM1
COM2
T: Mouse
B: K/B
T: Game Port
B: Audio Port
PCI 1
PCI 2
PCI 3
ISA
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CPU Fan
Jp9
JP7
JP1
JP2
JP3
JP5
JWOL1
JP8
5135SIR
JSB1
J45
KB USB COM1 COM2
MS
LPT
Line out
Line In
MIC
MIDI/Game port
Connector Front View

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Jumper & Connector Settin
CONNECTOR SETTING
PS1- Keyboard Connector
Pin Description
1 Keyboard Data
2NC
3 GND
4 VCC
5 Keyboard CLK
6 Mouse Data
7 N.C.
8 Ground
9 +5V
1 Mouse Clock
J88 - ATX Power Supply Connector
Pin Description
1,2,11 + 3.3 V
3,5,7,13,15,16,17 Ground
4,6,19,2 + 5 V
8 POWER GOOD
9 5VSB
1 +12 V
12 -12 V
14 PS-ON
18 - 5 V

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LPT1 - Printer Connector
Pin Si nal Name Pin Si nal Name
1 Strobe- 14 AFD
2 Data Bit 15 Error
3 Data Bit 1 16 INIT
4 Data Bit 2 17 SLCTIN
5 Data Bit 3 18 GND
6 Data Bit 4 19 GND
7 Data Bit 5 2 GND
8 Data Bit 6 21 GND
9 Data Bit 7 22 GND
1 ACK 23 GND
11 Busy 24 GND
12 PE 25 GND
13 SLCT 26 GND
COM1,COM2 –Serial Connectors
Pin Si nal Name Pin Si nal Name
1 DCD 6 DSR
2 SIN 7 RTS
3 SOUT 8 CTS
4 DTR 9 RI
5 GND 1 NC

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J3 - Universal Serial Bus (USB) Connectors
USB1 Pin Si nal Name USB2 Pin Si nal Name
1 USB VCC 1 USB VCC 1
2 USB Data - 2 USB Data -
3 USB Data + 3 USB Data +
4 USB GND 4 USB GND 1
5 GND 5 GND
5135SIR - Infrared Connector: IR
Pin Si nal Name
1 VCC
2 NC
3 IRRX
4 GND
5 IRTX
JS1-ESS1869 Sound Chip
JS1 Description
2-3 Disabled
1-2 Enabled
J45-CD_IN
PIN Name
1L
2GND
3GND
4R

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J7 – OTHER JUMPER SETTING
Pin Name Description
1-3 EXTSMI Suspend mode
7-9 SUS _ LED Suspend mode LED
13-15 PB _ BT Power buttem
23-25 HD – LED Hard Disk LED
2-8 SPEAKER Speaker
12-14 RST Reset buttom
18-22 PWR - LED Power LED
24-26 KEYLOCK Key Lock
JP8 – CMOS Clear
JP8 Description
1-2 Normal (default)
2-3 Clear CMOS
P2 P26
P1 P25
SPEAKER RST PWR_LED
EXTSMI HD_LED
PB_BT
SUS_LED
KEYLOCK

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CPU TYPE Select
CPU Bus Speed - 66MHz part :
1. 233MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Open Sho t Sho t Sho t
2. 266MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Sho t Sho t Open Sho t Sho t
3. 300MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Sho t Open Sho t Sho t
JP1 JP2 JP3 JP6JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7

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4. 333MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Sho t Open Open Sho t Sho t
5. 366MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Open Open Sho t Sho t
6. 400MHz
JP1 JP2 JP3 JP5 JP6 JP7
Open Sho t Sho t Sho t Sho t Sho t
JP1 JP2 JP3 JP6 JP5 JP7
KQ2 KQ3 KQ4 KQ7 KQ6 KQ8
KQ2 KQ3 KQ4 KQ7 KQ6 KQ8

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7. 433MHz
JP1 JP2 JP3 JP5 JP6 JP7
Open Open Sho t Sho t Sho t Sho t
8. 466MHz
JP1 JP2 JP3 JP5 JP6 JP7
Open Sho t Open Sho t Sho t Sho t
9. 500MHz
JP1 JP2 JP3 JP5 JP6 JP7
Open Open Open Sho t Sho t Sho t
KQ2 KQ3 KQ4 KQ7 KQ6 KQ8
KQ2 KQ3 KQ4 KQ7 KQ6 KQ8
KQ2 KQ3 KQ4 KQ7 KQ6 KQ8

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CPU Bus Speed - 100MHz part :
1. 300MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Sho t Open Sho t Open Sho t
2. 350MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Open Sho t Open Sho t
3. 400MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Sho t Sho t Open Open Sho t
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6JP5 JP7

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4. 450MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Sho t Open Open Sho t
5. 500MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Sho t Open Open Open Sho t
6. 550MHz
JP1 JP2 JP3 JP5 JP6 JP7
Sho t Open Open Open Open Sho t
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7

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CPU TYPE SELECTION LIST
JP1~JP5 (Fo RATIO select)
RATIO JP1 JP2 JP3 JP5
3.0 Short Short Open Short
3.5 Short Open Open Short
4.0 Short Short Short Open
4.5 Short Open Short Open
5.0 Short Short Open Open
5.5 Short Open Open Open
JP6 (Fo BUS clock)
CLOCK JP6
66 MHz Short
100 MHz Open
JP7 (CPU BUS Clock manual / Auto detect)
CLOCK JP7
Default (Auto Detect) Short
Force BUS CLOCK up to 100 MHz Open
FAN CONNECTOR
JP9: This fan is used in CPU COOL FAN.
Sho t Open
P9
GND +12V
12
3
NC

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How to install the CPU
Prepare the motherboard by installing the supplied Slot 1 CPU, then
install the CPU according to the instructions supplied. Complete the
processor installation by installing the supplied heat-sink support, and
connecting the heat sink power cable to the motherboard connector.
Referential Steps of installin the Slot 1 CPU
This part is only for CPU installation. Regarding to the heat-sink part, please
refer the instructions supplied.
1. Inspect the area around Slot1, verify the position of four around-
sockets, and then locate the small protruding rectangular tab on the side
of Slot1 (see diagram).
2. Examine the CPU Retention and attachments. There are three sets of
attachments: 1. The stand itself. 2. The CPU locking caps (two). 3.
The plastic screws (four).

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3. Once the above two steps have been completed, slot the CPU Retention
into Slot1. Pull up the CPU stays on both side of the CPU Retention so
they are horizontal, at an angle of 90°. Then the side of the CPU
Retention with no mark on it and the side of Slot1 with the small
rectangular tab should be on the same side.
4. Ensure that the CPU Retention has been slotted all the way in, then
screw the four plastic screws into the sockets on each side of Slot1 to
make sure that the CPU Retention is fixed firmly in position.
! The CPU Retention has
to go in a particular direction.
Make sure that it is the right wa
y
round before slotting it in. Do no
t
force it in, otherwise you ma
y
damage the motherboard and
CPU Retention.

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5. Slide the CPU slowly into Slot1 along the two sides of the CPU
Retention.
Note: Some Slot 1 processors with different packing maybe need the caps to
let them be fixed. So if it need the caps during installing Slot 1 CPU,
please follow this step: “ Fix the CPU locking caps onto the two
ends of the CPU stays ”.
6. Connect the CPU Fan head to the CPU Fan connector on the
motherboard, and make sure that the CPU has been fixed firmly onto
the motherboard. You have now completed assembly.

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SLOT 1 CPU Disassembly/Replacement Procedures
1. Move the protruding part on top of the CPU locking caps gently
outwards, so that the locking caps come off.
2. Pull the CPU Fan connector off the motherboard, and then gently pull
the CPU out from Slot1.
3. If you need to install another CPU, follow the instructions for Slot1
CPU installation given above.
CPU & Power Supply Fan Connectors (3-pin FanPWR)
These connector support cooling fans of 500mAMP (6WATT) or less. Orien-
tate the fans so that the heat sink fins allow airflow to go across the onboard
heat sink(s) instead of expansion slots. Depending on the fan manufacturer,
the wiring and plug may be different. The red wire should be positive, while
the black should be ground. Connect the fan’ s plug to the board taking into
consideration the polarity of this connector.
The CPU and motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks. Damage may occur to the
motherboard and the CPU fan if these pins are incorrectly used.
The “Rotation” signal is to be used only by a specially designed fan with
rotation signal.
!

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MEMORY INSTALLATION
No jumper setting is necessary for DRAM setting; BIOS will check
DRAM type and size automatically. This motherboard contains 2 by 168-pin
DIMM socket (DIMM1, DIMM2). The motherboard has a table-free (or
auto-bank) feature; the user can install DIMM into any bank. The two DIMM
Sockets permit system memory expansion from 8MB to 256MB. Each bank
provides a 64-bit wide data path. You can install 100MHz SPD RAM or
66MHz SD RAM into the motherboard, using your CPU clock to make the
selection.
If you want to install more memory and there are no sockets available,
you must remove some installed modules and replace them with the upgrade
modules.
If you have to do this, be sure to identify what type of memory is already
installed. In some cases, there may be a mix of module types. You can
confirm this by checking the configuration screen that appears while the
computer is starting up. Press the pause key to temporarily interrupt the start-
up so that you have more time to read the screen. When you’ re done, press
any key to resume.
Remove the lowest performance and smallest size modules and replace
them with the upgrades.
168-
p
in DIMM Module
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PCI 1
PCI 2
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