SOLTEK SL-55B5 User manual

ii
Notice to End Users
This UserÕs Guide & Technical Reference is for assisting system
manufacturers and end users in setting up and installing the
mainboard.
Every effort has been made to ensure that the information in this
manual is accurate. Soltek Computer Inc. is not responsible for
printing or clerical errors. Information in this document is subject
to change without notice and does not represent a commitment on
the part of Soltek Computer Inc.
No part of this manual may be reproduced, transmitted, translated
into any language in any form or by any means, electronic or
mechanical, including photocopying and recording, for any purpose
without the express written permission of Soltek Computer Inc.
Companies and products mentioned in this manual are for
identification purposes only. Product names appearing in this
manual may or may not be registered trademarks or copyrights of
their respective companies.
SOLTEK COMPUTER INC. PROVIDES THIS MANUAL ÒAS ISÓ
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR
CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL SOLTEK COMPUTER
INC. BE LIABLE FOR ANY LOSS OR PROFITS, LOSS OF BUSINESS, LOSS
OF USE OR DATA, INTERRUPTION OF BUSINESS, OR FOR INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY
KIND, EVEN IF SOLTEK COMPUTER INC. HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR
ERROR IN THIS MANUAL OR PRODUCT.
© Copyright 1998 Soltek Computer Inc. All right reserved
Web site: http://www.soltek.com.tw
email: [email protected]
Edition: January 1998
Version: 1.0
SL–55B5 SERIAL

Contents iii

iv
Contents
Chapter 1: Introduction --------------------------------------- 1
Features -------------------------------------------------------------------------1
CPU ------------------------------------------------------------------------1
Chipset -------------------------------------------------------------------- 1
L2 Cache ------------------------------------------------------------------1
Main Memory ----------------------------------------------------------- 1
BIOS ------------------------------------------------------------------------ 3
I/O Function -------------------------------------------------------------3
Other Functions --------------------------------------------------------- 3
Mainboard Setting for Pentium MMX-166----------------------------- 4
Chapter 2: Hardware Setup---------------------------------- 5
CPU VCORE Voltage Setting---------------------------------------------- 5
JP1: CPU VCore Voltage Setting -----------------------------------5
AGP Driver for Win95 Installation --------------------------------------6
Requirement -------------------------------------------------------------6
Installation Procedure -------------------------------------------------6
Intel Pentium MMXÐ166/200/233 CPUs ------------------------------7
AMD K6 CPU Settings------------------------------------------------------8
AMD K6 Ð 166/200/233 CPUs -------------------------------------- 8
AMD K6 Ð 266/300/333/366 CPUs -------------------------------- 9
Cyrix 6x86MX (M2) Ð PR150/166/200/233/266 CPUs----------- 10
Cyrix 6x86(L) Ð PR133+/PR150+/PR166+/PR200+ CPUs------- 11
Intel Pentium/AMD K5 Ð 133/166/200 CPUs---------------------- 12
IDT C6 Ð 200/233/266 ---------------------------------------------------- 12
System Memory Configuration----------------------------------------- 13
Jumper Settings ------------------------------------------------------------- 13
JP2: Clear CMOS Data ---------------------------------------------- 13
SW1: 1~3: CPU Clock Setting ------------------------------------- 14
IDE LED Activity Light: (J1 pin1Ð4)------------------------------ 14

Contents v
Infrared Port Module Connector (J1 pin6Ð10) ----------------- 14
J1 pin12, 13: ATX Power Button ---------------------------------- 14
J1 pin14, 15: Reserved ----------------------------------------------- 14
Speaker Connector (J2 pin1Ð4) ------------------------------------ 15
Reset Switch (J2 pin5, 6)--------------------------------------------- 15
Power LED and Keylock Switch (J2 pin8Ð12)------------------ 15
Turbo LED (J2 pin14, 15)-------------------------------------------- 16
J1 Switch Signal Summary ----------------------------------------- 17
J2 Switch Signal Summary ----------------------------------------- 18
Chapter 3: BIOS Setup ---------------------------------------19
Standard CMOS Setup ---------------------------------------------------- 20
BIOS Features Setup ------------------------------------------------------- 22
Chipset Features Setup --------------------------------------------------- 25
Power Management Setup ----------------------------------------------- 29
PnP/PCI Configuration Setup ------------------------------------------ 31
Load Setup Defaults ------------------------------------------------------- 34
Integrated Peripherals ---------------------------------------------------- 34
Supervisor/User Password---------------------------------------------- 37
IDE HDD Auto Detection ------------------------------------------------ 38
Save & Exit Setup ---------------------------------------------------------- 39
HDD Low Level Format -------------------------------------------------- 39
Exit Without Saving ------------------------------------------------------- 39

Introduction 1
Chapter 1
Introduction
Features
CPU
1. Supports Intel Pentium P54C/MMX (P55C) CPUs at 90
~ 233 MHz;
2. Supports Cyrix 6x86(L) CPUs at PR133+~ PR200+MHz
and 6x86MX (M2) CPUs at PR166+~ PR266+;
3. Supports AMD K5: PR90 ~ PR200 and AMD K6: 166 ~
366;
4. Supports IDT C6: 200 ~ 266;
5. Provides SOCKET 7 ZIF Socket;
6. Supports 75MHz CPU clock;
7. Supports CPU voltage auto detect and switching circuit.
Chipset
1. VIA Apollo VP3 chipset;
2. PCI Rev 2.1 and APM1.1 compliant.
L2 Cache
1. Onboard supports 512k write back cache with Pipelined
Burst SRAMs.
Main Memory
1. Memory range from 4MB (minimum) to 1GB
(maximum) with DRAM Table Free configurations;
2. Supports Fast Page Mode/EDO/Synchronous DRAM
with 60ns/70ns DRAM speed;

2
3. Supports 2pcs 72pin SIMM sockets and 3 pcs of 168pin
DIMM sockets (3.3V unbuffered type).
BIOS
1. AWARD Plug and Play BIOS;
2. Supports Advanced Power Management Function;
3. Flash Memory for easy upgrade.
I/O Function
1. Integrated USB (Universal Serial Bus) controller with
two USB ports;
2. Supports 2 IDE channels with 4IDE devices (including
120MB IDE floppy);
3. Provides PCI IDE Bus Master function;
4. One floppy port (including 3.5", 1.2MB Mode 3
function);
5. Two high speed 16550 FIFO UART ports;
6. One parallel port with EPP/ECP/SPP capabilities;
7. PS/2 mouse connector;
8. Infrared module connector.
Other Functions
1. ATX Form Factor with 19cm x 30.5cm;
2. 4 PCI Master slots, 3 ISA slots, and 1 AGP slot;
3. Supports SCSI/CD-ROM Boot function.
Note: 1. Make sure that the SDRAM module not only has
to be 168 pin DIMM but designed for 3.3V
unbuffered SDRAM as well. Double check with
the SDRAM supplier before install any SDRAMs.
The mainboard manufacturer has no obligation to
any damage of the board by using the incorrect
specification of SDRAM.
2. Do not mix EDO and SDRAM together for the
system stability.

Introduction 3
Mainboard Setting for Pentium MMX-166
The default settings of the following figure is for the INTEL
Pentium MMX-166 with the 512K (or 256K) cache.
+
Intel
MMX
CPU
W83877F
ISA3
ISA2
ISA1
PCI4
PCI3
PCI2
PCI1
VT82C586B
FLASH BIOS
FDC
JP2
1
J1
HD/LED IR PWR/SW
J2
T/LEDKEYLOCKRESETSPK
AGP
IDE2 IDE1
VIA
VP3
Clock
Gen
Pipelined
SRAM
Pipelined
SRAM
CPU Fan
1
JP1
7
8
2
1
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
TAG
ATX Power
SIMM1 SIMM2
DIMM1 (Bank 0) DIMM2 (Bank 1) DIMM3 (Bank 2)
PRT1
COM2 COM1
USB0 USB1
PS/2
K/B
Upper
Lower
Note: DIMM3 and SIMM1/2 can’t be installed simultaneously.
(Bank 2)
Figure 1–1. SL–55B5 Motherboard Layout

4
Chapter 2
Hardware Setup
CPU V
CORE
Voltage Setting
JP1: CPU V
Core
Voltage Setting
3.1V*
3.5V
Pentium (P54C)
6x86
K5
VCore
Voltage
3.0V* 3.4V
2.9V
K6Ð166/200
6x86MX (M2)
3.3V
IDT C6
2.8V
MMX, 6x86L
3.2V*
K6Ð233
(or higher)
VCore
Voltage
2.4V2.0V
VCore
Voltage
2.5V
2.6V
2.7V
2.1V*
2.2V
K6Ð266
(or higher)
2.3V
VCore
Voltage
JP1 JP13 JP1 JP1
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
12
78
CPU Type VCore
Pentium (P54C), 6x86, K5 3.52V
IDT C6 3.3V
MMX (P55C) 2.8V
6x86L 2.8V
K6-166/200, 6x86MX (M2) 2.9V
K6-266 (or higher) 2.2V

Hardware Installation 5
Note: 1. Refer to the table above to choose the correct
voltage for the CPU everytime that you install a
CPU.
2. Make sure that your JP1 is matched with the
CPU voltage, otherwise will damage the CPU or
make the system unstable.
3. When the new CPU is announced and is not
listed on this manual, please refer to the above
table, select the correct voltage setting for it.
AGP Driver for Win95 Installation
Requirement
¥ Microsoft Windows95OSR2.1 (OSR2.0 with USB upgrade)
¥ Apollo VP3 AGP VxD Driver
¥ AGP VGA Card with Driver
¥ DirectX 5.0 DDK or SDK
Installation Procedure
Step1 Go to the next step if you are running
Win95OSR2.0/2.1, and if not, install Windows95
4.00.950B or later version
Step2 Install USBSUBB.EXE program (USB upgrade)
Step3 Install Apollo VP3 AGP VxD Driver, run
ÒSETUP.EXEÓ program
Step4 Install AGP driver for Windows95
Step5 Install Microsoft DirectX 5.0 DDK or SDK
To make sure if the Apollo VP3 AGP driver is properly
installed, boot up the system and run the ÒRegeditÓ to check
if the following path with VIAGARTD exists:
ÒHKEY_LOCAL_MACHINES\System\CurrentControlSet\
Services\VxDÓ.

6
Follow the below procedure to check if the AGP driver is
capable to activate:
1. Activate ÒControl Panel,Ó
2. Click ÒDirectX,Ó
3. Click ÒDirectDraw,Ó and
4. Check if there are some values in ÒBitÓ and ÒOverlays.Ó
If there are some values, the AGP is able to activate.
Intel Pentium MMX–166/200/233 CPUs
Intel
MMX
CPU
JP1
(2.8V)
78
21
SW1
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
On
1
Off Off
2
Off
34
Off
5
Off
6
ON
1
Off
2
Off
34
Off Off Off
5
Off
6
ON
MMX–166 MMX–200 MMX–233
Figure 2–1. CPU Type Configuration

Hardware Installation 7
AMD K6 CPU Settings
AMD K6 – 166/200/233 CPUs
JP1
21
JP1
1
AMD
K6
CPU
JP1
78
21
SW1
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
On
1
Off Off
2
Off
34
Off
5
Off
6
ON
1
Off
2
Off
34
Off Off Off
5
Off
6
ON
K6–166 K6–200 K6–233
78
(2.9V)
78
(3.2V)
Figure 2–2. CPU Type Configuration
Note: 1. K6–166 and K6–200 are 2.9V CPUs.
2. K6–233 CPU is 3.2V or 2.1V depending on its
process. Please check its spec before using it.

8
AMD K6 – 266/300/333/366 CPUs
Off Off Off Off
ON
Off Off Off Off Off
ON
AMD
K6
CPU
SW1
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
On On On On On On
12
Off
34
Off
5
Off
6
ON
123456
K6–266 K6–300 K6–333
123456
K6–366
JP1
78
21
(2.2V)
Figure 2–3. CPU Type Configuration
Note: K6–266 and higher CPUs are set at 2.2V
normally. Check the spec of CPU voltage before
installing it.

Hardware Installation 9
Cyrix 6x86MX (M2) – PR150/166/200/233/266
CPUs
Cyrix
6x86MX
CPU
SW1
JP1
78
21
(2.9V)
6x86MX–PR150
(66MHz x 2.0) 6x86MX–PR166 (60MHz x 2.5) 6x86MX–PR200 (66MHz x 2.5) 6x86MX–PR233 (66MHz x 3.0)
6x86MX–PR166
(66MHz x 2.0) 6x86MX–PR200 (75MHz x 2.0) 6x86MX–PR233 (75MHz x 2.5)
6x86MX–PR266
(75MHz x 3.0)
1
Off Off
2
Off
3
On
4
Off
5
Off
6
ON
On
1
Off
2
Off
3
On On
4
Off
5 6
ON
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
1
Off
2
Off Off
3
On
4
Off
5
Off
6
ON
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
1
Off Off
2
Off
3
On
4
Off
5
Off
6
ON
On
1
Off
2
Off
3
On
4
Off
5
Off
6
On
1
Off
2
Off
3
On On
4 5
Off
6
ONON
Figure 2–4. CPU Type Configuration

10
Cyrix 6x86(L) –
PR133+/PR150+/PR166+/PR200+CPUs
Off Off Off Off Off
ON
Off Off Off Off
ON
Cyrix
6x86L
CPU
SW1
On
1
Off Off
2
Off
3
On On
4 5 6
ON
On On On On On
12
Off
34
Off Off Off
56
ON
123456
6x86(L)–PR133+6x86(L)–PR150+6x86(L)–PR166+
123456
6x86(L)–PR200+
78
21
6x86L
(2.8V)
78
21
6x86
(3.5V)
JP1
78
21
Figure 2–5. CPU Type Configuration

Hardware Installation 11
Intel Pentium/AMD K5 – 133/166/200 CPUs
Pentium
K5
CPU
JP1
(3.5V)
78
21
SW1
On
1
Off
2
Off
3
On
4
Off
5
Off
6
ON
On On
1
Off Off
2
Off
34
Off
5
Off
6
ON
1
Off
2
Off
34
Off Off
5
Off
6
ON
Pentium–166
K5–PR166 Pentium–200 K5–PR200 Pentium–133 K5–PR133
Figure 2–6. CPU Type Configuration
IDT C6 – 200/233/266
IDT
C6
CPU
JP1
(3.3V)
78
21
SW1
On
1
Off
2
Off Off
34
Off
5
Off
6
ON
1
Off Off Off
2
Off
34
Off
5
Off
6
ON
On On
12
Off
34
Off Off
5
Off
6
ON
C6–200 C6–233 C6–266
Figure 2–7. CPU Type Configuration

12
System Memory Configuration
This Apollo VP3 motherboard supports 72-pin SIMMs and
168pin DIMMs (3.3V unbuffered type) of 4MB, 8MB, 16MB,
or 32MB to form a memory size between 4MB to 1GB (total
of 6 rows are supported).
The Apollo VP3 chipset supports ÒTable FreeÓ configuration
so that DRAM module can be installed at any capacity.
Note: 1. Do not recommend to mix EDO and SDRAM
together for the system stability.
2. DIMM3 and SIMM1/2 can not be installed
simultaneously.
Jumper Settings
JP2: Clear CMOS Data
Clear the CMOS memory by shorting this jumper on 2Ð3
momentarily; then remove the cap to retain new settings.
COMS Data JP2
Retain Data
(default)
1
3
Clear Data
1
3

Hardware Installation 13
SW1: 1~3: CPU Clock Setting
SW1: 4~6: Bus Ratio Select
Set the SW1 jumper according to your CPU Bus Ratio and
CPU Clock.
ON
321
Off Off
On
ON
321
Off
On On
ON
321
Off Off Off
ON
Off
321
On Off
60MHz55MHz
SW1: 1~3
CPU Clock
Setting
66MHz 75MHz
ON
Off
654
Off Off
On
1.5x or
3.5x ON
654
Off
On On
Off
ON
654
Off
On
ON
Off
654
Off
2.0x
SW1: 4~6
CPU Bus
Ratio Setting
2.5x 3.0x
ON
654
Off
On
ON
On On
654
On On On
ON
On
654
Off
ON
Off
654
On
Off
4.5x4.0x
SW1: 4~6
CPU Bus
Ratio Setting
5.0x 5.5x
IDE LED Activity Light: (J1 pin1–4)
This connector connects to the hard disk activity indicator
light on the case.
Infrared Port Module Connector (J1 pin6–10)
The system board provides a 5-pin infrared connectorÑIR1
as an optional module for wireless transmitting and
receiving. Pin 6 through 10 are Transmit, GND, Receive
(low speed), Receive (high speed), and Vcc, respectively.
J1 pin12, 13: ATX Power Button
Toggle this switch to turn on/off the system.
J1 pin14, 15: Reserved

14
Speaker Connector (J2 pin1–4)
The speaker connector is a 4-pin connector for connecting
the system and the speaker. (See the following drawing for
jumper position.)
Reset Switch (J2 pin5, 6)
The system board has a 2-pin connector for rebooting your
computer without having to turn off your power switch.
This prolongs the life of the systemÕs power supply.
Power LED and Keylock Switch (J2 pin8–12)
The keylock switch is a 5-pin connector for locking the
keyboard for security purposes. (See the following drawing
for jumper position, and pin1~3 is connected to power LED
and pin 4~5 is connected to keylock switch.)

Hardware Installation 15
Turbo LED (J2 pin14, 15)
Connect the caseÕs turbo LED to this connector.
+
J1 HD/LED IR Power
Button
J2 T/LEDKEYLOCKRESETSPK
J1 HD/LED IR Power
Button
J2 T/LEDKEYLOCKRESETSPK
Reset Power
LED
SPK Turbo
LED
J2
IR CON
HD/LED
J1
Power
Button
Keylock
1234 678910 12131415
123456 89101112 1415