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6VIA90A1
User's Manual Version 1.0
The information presented in this publication has been made
carefully for reliability; however, no responsibility is assumed
for inaccuracies. Specifications are subject to change without
notice.
IBM, PC/AT, and PC/XT are trademarks of International Busi-
ness Machines Corporation.
Pentium is a trademark of Intel Corporation
AWARD is a registered trademark of Award Sofftware Inc.
MS-DOS and WINDOWS NT are registered trademarks of
Microsoft Corporation.
Trademarks and/or registered trademarks are the
properties of their respective owners.
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Summary of Contents for Acorp 6VIA90A1
- Page 1 6VIA90A1 User's Manual Version 1.0 The information presented in this publication has been made carefully for reliability; however, no responsibility is assumed for inaccuracies. Specifications are subject to change without notice. IBM, PC/AT, and PC/XT are trademarks of International Busi- ness Machines Corporation.
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Page 2: Table Of Contents
Features ............3 Features of the mainboard ......4 Chapter 3 Installation ..........5 The 6VIA90A1 Mainboard Layout ....7 System Installation Setups ......8 Static Electricity Precaution ...... 8 Jumper Settings ......... 9 System Memory (DIMM modules) ..... 11 DIMM Memory Installation ...... -
Page 3: Chapter 1 Introduction
Chapter 1 Introduction How This Manual is Organized This manual is divided into the following sections: Chapter 1 Introduction : Manual information and checklist. Chapter 2 Features : Information and Specifications con- cerning this mainboard. Chapter 3 Installation : Instructions on setting up the board. The mainboard is a high-performance mainboard based on the ad- vanced Socket 370 microprocessor, the VGA, Audio , PCI Bus and the VIA 694X chipset. -
Page 4: Package Checklist
Package Checklist Please check that your package is complete . If you discover any item damaged or missing , please contact with your retailer immediately. The 6VIA90A1 mainboard. The USB2 conector with bracket (option). 1 x IDE UDMA66 ribbon cable. -
Page 5: Chapter 2 Features
Chapter 2 Features Features of the 6VIA90A1 Mainboard VIA 694X chipset supports 66/100/133MHz FSB, UltraDMA66 AGP 4X. Supports Intel's processor designed for socket 370 and package in PPGA/ FCPGA. Integrated H/W monitor compensation engine. support "Touch Button Wake up" for soft power on/off and sus- pend mode multifunction.(option) - Page 6 support Resume by Ring through Modem. Use 168-Pin DIMM modules (supprts Intel PC100/133-com- pliant SDRAMs) x3 . 5x PCI Bus slots, and 1 x AMR (Audio Modem Riser) slots. 1 x ISA Bus slots. All 5 PCI slots support Master mode. System BIOS support 4 IDE harddisk drivers that don't need de- vice driver for S/W application.
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Page 7: Chapter 3 Installation
Chapter 3 Installation Jumper Jumper Refer to pages JBAT1 - CMOS Clear BSEL0-1 - CPU Type selection JCK1-4 - CPU bus frequency selection - AMR Type Selection J3, J4 - Onboard AC'97 Selection FAN1 - FAN Connector FAN2 - FAN Connector WOL1 - Lan Card Wake Up Chapter 3 Installation / 5... - Page 8 Expansion Slot Refer to pages PCI SLOT 1,2,3,4,5 -32bits PCI SLOT ISA SLOT 1 -16bits ISA SLOT AMR SLOT - Audio Modem Riser Slot Connectors Refer to pages - PS/2 Mouse port (UP) - PS/2 AT (mini DIM) Keyboard port (DOWN) 20 COM1 - COM 1 serial port COM2...
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Page 9: The 6Via90A1 Mainboard Layout
The 6VIA90A1 Mainboard Layout JCK1 JCK2 B : K / B JCK3 JCK4 T: Mouse FAN1 JVI02 BSE0 BSE1 COM1 Printer COM2 JACK1 JACK2 GAME1 JACK3 AGP1 WOL1 FAN2 PCI SLOT1 PCI SLOT2 PCI SLOT3 PCI SLOT4 PCI SLOT5 BIOS... -
Page 10: System Installation Setups
The 6VIA90A1 Mainboard Layout System Installation Setup Before using your computer, you must finish the following steps: 1. Set jumpers on mainboard 2. Install SDRAM module. 3. Install the Processor. 4. Connect Ribbon Cables, Cabinet Wires, and Power supply. 5. Install Add on Cards. -
Page 11: Jumper Settings
Jumper Settings Jumpers The several hardware setting are made through the use of jumper caps to connect jumper pins (Jxx) on the mainboard. See " Map of the mainboard" for locations of jumpers. The jumper settings will be described numerically such as [----], [1-2], [2-3] for no connection, connect pins 1 &... - Page 12 Real Time Clock (RTC) RAM - JBAT1 : The CMOS RAM is powered by the onboard button cell battery. To clear the RTC data: (1)Turn off your computer, (2) Move this jumper to "2-3Pin Clear Data", (3) Move the jumper back to "Default", (4) Turn on your computer, (5) Hold down <Delete >...
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Page 13: System Memory (Dimm Modules)
System Memory ( DIMM Module) This 6VIA90A1 main board supports three 168 pin DIMM of 16 MB, 32 MB, 64 MB, 128 MB ,256MB to form a memory size be- tween 16MB to 256MB. The DRAM can be either Intel PC133-compliant SDRAMs. -
Page 14: Dimm Memory Installation
DIMM Memory Installation Insert the module (s) as shown. Because the number pins are differ- ent on either side of the breaks,the module will only fit in the ori- entation as shown. SDRAM DIMM modules have different pin con- tacts on each side and therefore have a higher pin density. 168 Pin DIMM Socket JCK1 JCK2... - Page 15 The Dual Inline Memory Module (DIMM) memory module must be 3.3v Extended Data Output (EDO) DRAM or SDRAM. You can identify the type of DIMM module by the illustration below: Unbuffered 5.0V Reserved Buffered 3.3V Voltage Key Position DRAM Key Position 168 Pin DRAM DIMM Notch Key Definitions The notch on the DIMM module will shift between left, center, or right to identify the type and also to prevent the wrong type to be...
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Page 16: Cpu Installation
CPU Installation The motherboard provides a ZIF socket 370. The CPU that came with the motherboard should have a fan attached to it to prevent over- heating . If this is not the case then purchase a fan before you turn on your system. - Page 17 CPU Type Selection -BSEL0, BSEL1 Current PCI bus is limited to 33MHz, socket370 Celeron proces- sors limited to 66MHz, and SDRAM limited to the DIMM type 66/ 100/133MHz. Other settings are for experienced users only. JCK1 JCK2 B : K / B JCK3 JCK4 T: Mouse...
- Page 18 NOTE: In order to enhance clock generator, it needs to change the Jumpter setting as follow. CPU External (Bus) Frequency Selection -JCK1, JCK2, JCK3, JCK4 The JCK1~4 jumpers is used to set PCI and CPU external bus clock. C L K P C I J C K 1 J C K 2...
- Page 19 Onboard AC'97 Function Selection : J3, J4 J 3 / J 4 Disabled JCK1 JCK2 B : K / B JCK3 JCK4 T: Mouse FAN1 Enabled JVI02 BSE0 BSE1 COM1 Printer COM2 JACK1 JACK2 GAME1 JACK3 AGP1 WOL1 FAN2 PCI SLOT1 PCI SLOT2 PCI SLOT3 PCI SLOT4...
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Page 20: Clearance Requirements
Clearance Requirements To maintain proper airflow once the processor is installed on the mainboard, the processor and fan heatsink require certain space clearances. The clearance above the processor must be at least 0.3 inches. The clearance on at least 3 of 4 sides of the processor and fan heatsink must be at least 0.2 inches. -
Page 21: External Connectors
EXTERNAL CONNECTORS Both Ribbon cable and Connectors on board are with direction signs to avoid that user insert wrong direction. The ribbon cables should always be connected with the red stripe on the pin 1 of side of the connector. MIDI/(GAME) Port Parallel (Printer) Port (15-pin Female) - Page 22 1. PS/2 AT Keyboard port This connection is for a standard keyboard using an PS/2 plug (mini DIN) . This connector will not allow standard at AT size (large DIN) keyboard plugs. You may use a DIN to mini DIN adapter on standard AT keyboards.
- Page 23 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. JCK1 JCK2 B : K / B JCK3 JCK4 T: Mouse...
- Page 24 8. Primary / Secondary IDE connectors (Two 40-pin Block) These connectors support the provided IDE hard disk ribbon cable. After connecting the single end to the board, connect the two plugs at the other end to your hard disk (s) . If you install two hard disks, you must configure the second drive to Slave mode by setting its jumper setting.
- Page 25 9. IrDA / Fast IR-Compliant infrared module connector - J6 This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small open- ing on system cases that support this feature. You must also configure the setting through UART2 Use Infrared” in Chipset Feature Setup to select whether UART2 is directed for use with COM2 or IrDA.
- Page 26 10.PANEL1 PANEL1 Connector PW_LED PW_BN HD_LED SPEAK a. IDE activity LED (HD-LED) This connector supplies power to the cabinet’s IDE activity LED. Read and write activity by devices connected to the Primary or Secondary IDE connectors will cause the LED to light up. b.
- Page 27 d.Reset Switch Lead (RST) 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. e.
- Page 28 12. CD Audio Connector- CD_IN1/CD_IN2 The 4-pin connectors enable the system to receive the audio output from the CD-ROM. CD_IN1 Description JCK1 JCK2 B : K / B JCK3 CD-R JCK4 T: Mouse FAN1 CD-L JVI02 BSE0 BSE1 COM1 Printer COM2 CD_IN2 Description CD-R...
- Page 29 Guarantee Sheet/Technical Fault Report M/B Model No.: Vender Serial No. Date of Purchasing: Hardware Configuration Used : Video Card Hard Drive Other Card Diagnostic Software Used : Fault Description : Technical Support : WWW : www.acorp.com.tw fae@acorp.com.tw Chapter 3 Installation / 27...
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