EPOX 6VBA User manual

TRADEMARK
All products and company names are trademarks or registered
trademarks of their respective holders.
These specifications are subjected to change without notice.
Manual Revision 4.2
May 25, 1999
6VBAAAA
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Slot1 Processor based AGPSlot1 Processor based AGP
Slot1 Processor based AGPSlot1 Processor based AGP
Slot1 Processor based AGP
motherboard (100/66MHz)
SupporSuppor
SupporSuppor
Supports PC-133 SDRAM Modulets PC-133 SDRAM Module
ts PC-133 SDRAM Modulets PC-133 SDRAM Module
ts PC-133 SDRAM Module

Features
6VBA
Page 2
FEATURES
6VBA Features:
•6VBA is based on the Pentium®II/III Processor operating at 266 ~
550MHz on Slot1. The board is configured by an ESSJ (Easy-Setting-
Single-Jumper) to match your CPU clock speed.
•Designed with VIA Apollo Pro PCIset.
•Supports up to 768MB of DRAM (minimum of 8 MB) on board
•6VBA will support Error Checking and Correcting (ECC) when using
parity SDRAM memory modules. This will detect multiple bit errors and
correct 1-bit memory errors.
•Supports (1) 16 bit ISA slots, (5) 32 bit PCI slots, (1) AGP slot, (1) AMR
slot and provides (2) independent high performance PCI IDE interfaces
capable of supporting PIO Mode 3/4 and Ultra DMA 33/66 devices.
The 6VBA supports (5) PCI Bus Master slots and a jumperless PCI
INT# control scheme which reduces configuration confusion when plugging
in PCI card(s).
•Supports ATAPI (e.g. CD-ROM) devices on both Primary and Secondary
IDE interfaces.
•Designed with on chip Multi I/O: (1) floppy port, (1) parallel port (EPP,
ECP), and (2) serial ports (16550 Fast UART).
Note: Japanese “Floppy 3 mode” is also supported
•Features Award Plug & Play BIOS. With Flash Memory you can always
upgrade to the current BIOS as they are released. (http://www.2themax.com/
please visit our Technical Support section for the latest updates)
•6VBA utilizes a Lithium battery which provides environmental protec-
tion and longer battery life.

Features6VBA
Page 3
•Supports the (4) Universal Serial Bus (USB) Ports. The onboard
VT82C686A chip provides the means for connecting PC peripherals such
as; keyboards, joysticks, telephones, and modems.
•Built-in ATX 20-pin power supply connector.
•Software power-down when using Windows®95/98.
•Supports ring-in feature (remote power-on through external modem,
allows system to be turned on remotely.
• Resume by Alarm - Allows your system to turn on at a preselected time.
•Power Loss Recovery - In the event of a power outage your system will
automatically turn itself back on without user intervention.
•Supports CPU Hardware sleep and SMM (System Management Mode).
• Supports Keyboard power ON function (KBPO).
• Built-in WOL (Wake-up On Lan) Connector.
• Built-in AC97 PCI Audio.

Installation6VBA
Page 4
Figure 1
6VBA Detailed Layout

Installation
6VBA
Page 5
Easy Installation Procedure
Easy Installation Procedure
The following must be completed before powering on your new system:
Configure DIP Switch and Jumper to match your hardware
System memory Configuration
Device Connectors
Configure DIP Switch
We design this motherboard with a DIP Switch to make your install fast and easy.
The following will describe all of the DIP Switch that you are required to set
before moving on to step 2.
Note: The DIP Switch as depicted as shown (Figure 1) in their correct
physical orientation.
1234
ON
1WS)zHM(UPC
1234 oitaRzHM66zHM001
NONONOX3002003
NONOX5.3332053
NONONOX4662004
NONOX5.4003054
NONOX5333005
NOX5.5663055*
NONONOX6004006*
NONOX5.6334056*
NONOX7664*007*
NOX5.7005*057*
NONOX8335*008*
*reserved
JP1 Clear COMS
1-2 : Run Mode(default)
2-3 : Clear CMOS
JP4 Keyboard Power-ON Function Selection
1-2 : Disabled
2-3 : Enabled

Installation6VBA
Page 6
System Memory Configuration
Memory Layout
The 6VBA supports (3) 168-pin DIMMs (Dual In-line Memory Module).
The DIMMs can be either EDO (Enhanced Data Out) or SDRAM
(Synchronized DRAM).
• DIMM SDRAM may be 83MHz (12ns), 100MHz (10ns) or
125MHz (8ns) bus speed.
• If you use both 50ns and 60ns memory you must configure
your BIOS to read 60ns.
• When using Synchronous DRAM we recommend using the
4 clock variety over the 2 clock.
Figure 2 and Table 1 show several possible memory configurations using both
SIMM and DIMM.
* SDRAM only supports 8, 16, 32, 64, 128, 256MB DIMM modules.
Table 1
DIMM 1
DIMM 2
Bank 0
Bank 1 -Synchronous
-EDO
DIMM 3
Bank 2
yromeMlatoT 1MMID )0knaB( 2MMID )1knaB( 3MMID )2knaB(
BM652= mumixaM
*MARDS/ODE ,BM46,BM23,BM61,BM8 1XBM652,BM821 enoNenoN
BM215=
mumixaM
*MARDS/ODE
,BM46,BM23,BM61,BM8
1XBM652,BM821
*MARDS/ODE
,BM46,BM23,BM61,BM8
1XBM652,BM821 enoN
BM867=
mumixaM
*MARDS/ODE
,BM46,BM23,BM61,BM8
1XBM652,BM821
*MARDS/ODE
,BM46,BM23,BM61,BM8
1XBM652,BM821
*MARDS/ODE
,BM46,BM23,BM61,BM8
1XBM652,BM821
Figure 2

Installation
6VBA
Page 7
Device Connectors
Please install the motherboard into the chassis.
Now that your motherboard is installed you are ready to connect all your
connections (figure 10).
J2: Chassis Panel Connector
• Power LED, Speaker, Reset
J3: Turbo LED, HDD LED, IR Conn., Sleep/Power_ON
J4: CPU Fan Power
• A plug-in for the CPU Fan Power
J6: Chassis Fan Power
• A plug-in for the chassis Fan Power
J7: WOL (Wake On Lan) Connector
IDE1: Primary IDE
IDE2: Secondary IDE
FDD1:Floppy Controller Connector
PW1: ATX Power Connector
• 20-pin power connector
CD1: CD Audio Connector
AUX1:AUX Audio Connector
Figure 10
PS/2 Mouse
PS/2
KEYBOARD
USB port
COM1 COM2
parallel port
Speaker
Line_in
MIC
Joystick/Midi port

Installation6VBA
Page 8
Device Connectors (continued)
J2
Speaker - Connect to the system's speaker for beeping
1. Speaker 3. GND
2. N/C 4. GND
Reset - Closed to restart system.
Power LED - Power LED connector
1. Power LED(+) 4. NC
2. N/C 5. GND
3. GND
1
1
1
(This is connected to the power button on the case. Using the
Soft-Off by Pwr-BTTN feature, you can choose either Instant
Off (turns system off immediately), or 4 sec delay (you need to
hold the button down for 4 seconds before the system turns off).
When the system is in 4 sec delay mode, there is a special
feature to make the system to go into suspend mode when the
button is pressed momentarily.)
Turbo LED indicator - LED ON when higher speed is selected
IDE LED indicator - LED ON when Onboard PCI IDE Hard
disks is activate
J3 1
+
+
IR Connector
1. VCC 4. GND
2. NC 5. IRTX
3. IRRX
1
Power On/Off