Procomp B785 User manual

Contents
i
CONTENTS
CH1. MOTHERBOARD FEATURE...........................................................1
!SPECIFICATIONS..........................................................................1
!POWER OFF CONTROL SOFTWARE .........................................3
!PACKAGING CHECK LIST ..........................................................3
CH2. SETUP GUIDE ....................................................................................4
!MAINBOARD LAYOUT DRAWING ...........................................4
!JUMPER & CONNECTOR SETTING ...........................................5
CONNECTOR SETTING ...............................................................5
JP7 OTHER JUMPER SETTING ..................................................8
CPU TYPE SELECT ......................................................................
FAN CONNECTOR .....................................................................14
!MEMORY INSTALLATION........................................................15
CH3. AWARD BIOS SETUP......................................................................16
!THE MAIN MENU .......................................................................18
!STANDARD CMOS SETUP ........................................................20
!BIOS FEATURES SETUP ............................................................21
!CHIPSET FEATURES SETUP .....................................................27
!POWER MANAGEMENT............................................................28
!PNP / PCI CONFIGURATION SETUP ........................................34
!INTEGRATED PERIPHERALS ...................................................36
!LOAD BIOS DEFAULT ...............................................................37
!LOAD SETUP DEFAULT ............................................................37
!SUPERVISOR / USER PASSWORD SETTING..........................37
!IDE HDD AUTO DETECTION....................................................38
CH4. SOFTWARE SETUP.........................................................................39
✒ PENTIUM® II CPU INSTALLATION GUIDE...........................................P-1
REMARK
INTEL® is a registered trademark of Intel Corporation.
All other brands and product names are trademarks registered trademarks of their
respective companies.

B785
1
SPECIFICATIONS
System Chipset Intel®
44 BX chip set , ALi 513X
CPU Bus Speed Pentium®
҈/III 66/1 MHz CPU
CPU Clock 2 MHz ~ 55 MHz
emory Subsystem Expandable to 768MB(3 banks) with 168-Pin
SDRAM(DIMM) Socket X3
AGP Slot AGP Interface Specification Rev 1. Compliant
Integrated 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

B785
2
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
ESS1898 Sound Chip
One Line Out, One Line In
One MIC, One Game port
Others Windows 95 Compatible
Dimension Micro ATX size (244 x 18 mm), 4-layer PCB

B785
3
POWER OFF CONTROL SOFTWARE
The motherboard design supports software power off Control feature
through the SMM code in the BIOS under Win 5 operating system
environment. It is Micro ATX form factor 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 5 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 : B785
1 Driver : CD-Title
1 Cable : FDD. IDE. Connector
1 Manual : User’ s manual

B785
4
otherboard Layout Drawing
Chapter 2
Setup Guide
3V
Battery
ALi I/O
Intel 440BX PCI set
R
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
e ss
AudioDrive
CPU Fan
JP
JP6
JP1
JP2
JP3
JP5
JWOL1
JP8
5135SIR
JSB1
J45
KB USB COM1 COM2
MS
LPT
Speaker out Line In
MIC
MIDI/Game port
Connector Front View
JP7

B785
5
Jumper & Connector Setting
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

B785
6
LPT1 - Printer Connector
Pin Signal Name Pin Signal 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
CO 1,CO 2 –Serial Connectors
Pin Signal Name Pin Signal Name
1 DCD 6 DSR
2 SIN 7 RTS
3 SOUT 8 CTS
4 DTR 9 RI
5 GND 1 NC

B785
7
J3 - Universal Serial Bus (USB) Connectors
USB1 Pin Signal Name USB2 Pin Signal 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 Signal Name
1 VCC
2 NC
3 IRRX
4 GND
5 IRTX
JS1-ESS1898 Sound Chip
JS1 Description
2-3 Disabled
1-2 Enabled
J45-CD_IN
PIN Name
1L
2GND
3GND
4R

B785
8
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 – C OS 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

B785
CPU TYPE Select
CPU Bus Speed - 66 Hz part :
1. 233MHz
JP1 JP2 JP3 JP JP6 JP7
Short Open Open Short Short Short
2. 266MHz
JP1 JP2 JP3 JP JP6 JP7
Short Short Short Open Short Short
3. 300MHz
JP1 JP2 JP3 JP JP6 JP7
Short Open Short Open Short Short
JP1 JP2 JP3 JP6JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7
JP1 JP2 JP3 JP6 JP5 JP7