SOLTEK 85ERV2 User manual

4
85ERV2 / 85ERV2-L
Contents
Chapter 1 Specification ............................................. 9
1-1 85ERV2 / 85ERV2-L Components and Options............... 10
1-2 Mainboard Specifications ..................................................... 11
1-2.1 CPU Socket ................................................................................... 11
1-2.2 System Chipsets ........................................................................... 11
1-2.3 Memory ......................................................................................... 11
1-2.4 AMI BIOS ..................................................................................... 11
1-2.5 Accelerated Graphics Port (AGP) Interface........................... 11
1-2.6 Advanced System Power Management:................................... 12
1-2.7 Multi-I/O Functions :.................................................................. 12
1-2.8 Expansion Slots ............................................................................ 12
1-2.9 AC’97 Audio Codec on board .................................................... 13
1-2.10 LAN on board (85ERV2-L only) ............................................. 13
1-2.11 Hardware Monitor on board ................................................... 13
1-2.12 6-channel Sound Output Support (optional) ........................ 13
1-2.13 Form Factor................................................................................ 13
1-3 Mainboard Specification Table ........................................... 14
1-4 Chipset System Block iagram........................................... 15
Chapter 2 Hardware Setup..................................... 16
2-1 Pentium 4 CPU and Installation ......................................... 17
2-1.1 To Identify a Pentium 4 CPU..................................................... 17
2-1.2 CPU Installation with Socket 478B .......................................... 18
2-2 Pentium 4 CPU Fan Installation ......................................... 19
2-3 Memory Installation with Warning LE .......................... 20
2-3.1 To Install R RAM Module ................................................. 20
2-3.2 To Remove a IMM .................................................................... 20

5
Contents
2-4 AGP 4X/8X Slot Installation ................................................ 21
2-5 I E Connector Installation ................................................. 22
2-6 Floppy rive Connector ( F C ) Installation ................. 23
2-7 ATX V 2.03 Power Supply Installation .............................. 24
2-8 Jumper Settings ..................................................................... 25
2-8.1 Jp1: CPU Clock/Overclock Select ............................................ 26
2-8.2 JBAT1: Clear CMOS .................................................................. 27
2-8.3 Jp2: Flash ROM Write Protection ........................................... 28
2-9 Other Connectors Configuration........................................ 29
2-9.1 On-board FAN Connectors ........................................................ 29
2-9.2 Connector WOL1: Wake On LAN............................................ 30
2-9.3 C -ROM Audio Connector (C 1) ........................................... 30
2-9.4 Audio 1: 6-channel Sound Output Connector (optional) ..... 31
2-9.5 Chassis Panel Connectors .......................................................... 31
2-9.6 RJ45: LAN Connector ( 85ERV2-L only) ............................... 32
2-9.7 PS/2 Mouse And PS/2 Keyboard ............................................... 32
2-9.8 Thermal Sensor Connectors RT1 and RT2 ............................. 33
2-9.9 Complex Pin-header.................................................................... 34
2-9.10 USB Ports and USB Pin Headers............................................ 36
2-10 IRQ escription................................................................... 37
Chapter 3 Software Setup ....................................... 38
3-1 Open Up Support C : .......................................................... 39
3-2 Proceed to VIA 4-IN-1 rivers Installation ...................... 40
3-3 AC’97 Audio river Installation......................................... 42
3-3.1 Verify 6-channel Audio ............................................................... 42
3-3.2 Verify 6-channel Audio ............................................................... 43
3-4 Install USB 2.0 river for Win98 / Me / 2000 / XP.......... 46
3-5 Install Hardware Monitor Utility ....................................... 48

6
85ERV2 / 85ERV2-L
3-5.1 Installation ................................................................................... 48
3-5.2 Verification .................................................................................. 49
3-6 Install VIA LAN rivers (for 85ERV2-L only) ............... 50
3-6-1. VIA6183 LAN driver on Windows 9X .................................... 50
3-6-2. VIA6183 LAN driver on Windows NT4.0 .............................. 52
3-6-3. VIA6183 LAN driver on Win ME / 2000 / XP ....................... 53
Chapter 4 AMI BIOS Setup.................................... 55
4-1 About BIOS Setup ................................................................. 56
4-2 To Run BIOS Setup ............................................................... 56
4-3 About CMOS .......................................................................... 56
4-4 The POST ( Power On Self Test ) ....................................... 56
4-5 To Update BIOS ..................................................................... 57
4-6 BIOS SETUP --- CMOS Setup Utility................................ 59
4-6.1 CMOS Setup Utility .................................................................... 59
4-6.2 Standard CMOS Setup ............................................................... 60
4-6.3 Advanced BIOS Features ........................................................... 63
4-6.4 Advanced Chipset Features ....................................................... 66
4-6.5 Power Management Features .................................................... 69
4-6.6 PNP / PCI Configurations .......................................................... 72
4-6.7 Integrated Peripherals................................................................ 74
4-6.8 Hardware Monitor Status .......................................................... 77
4-6.9 Frequency/Voltage Control ....................................................... 79
4-6.10 Set Supervisor Password .......................................................... 81
4-6.11 Load Optimized efaults ........................................................ 83
4-6.12 Save & Exit Setup...................................................................... 83
4-6.13 Exit Without Saving .................................................................. 83
APPEN ICES.......................................................... 85
Appendix-1 Identify Mainboard Model Number ................... 86
Appendix-2 Technical Terms ...................................................... 87

8
85ERV2 / 85ERV2-L
Mainboard
Support CD
Bundled Bonus Pack CD
Bundled Bonus Pack Manual
Thermal Sensor Cable (Optional)
ATA66/100/133 IDE Cable
FDD Cable
User’s Manual
Multi-lingual Quick Installation Guide
RS232 Cable (optional)
USB Cable (Optional)
ITEM CHECKUP

9
Chapter 1 Specification
Topics incl ded in this chapter are:
1-1 Mainboard Components Locations
1-2 Mainboard Specifications
1-3 Mainboard Specification Table
1-4 Chipset Diagram
Introd ction
Chapter 1 Specification
This series of mainboards features an integration of the powerful
processor Intel Pentium 4 and the single-chip North Bridge VIA Apollo
P4X400A (P4X400 CE Version) plus South Bridge VT8235, by which
the whole system performance can be upgraded to 533 MHz system
bus.
The Intel P4 processor is a rapid execution engine providing 4X100/
4X133MHz quadpumped system bus to allow 3.2GB data transfer rates
possible, while VIA Apollo P4X400A is an enhancement of P4X400 to
support the *DDR 400 DRAM which should have passed Soltek
validation. In addition P4X400A plus VT8235 supports P4 CPUs to
implement the 4X133 Front Side Bus, AGP 8X/4X bus, the LPC Super
I/O and UATA 133/100/66 data transfer rate. This chapter is to intro-
duce to users every advanced function of this high performance
integration.

10
85ERV2 / 85ERV2-L
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Conne tor
+12 Power Conne tor
41
Main Power Conne tor
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2 IDE1
FDC1
1 3
FAN2
FAN1
1
FAN3
1
1
FAN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI PORT
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Code
JUSB2
1
10
JUSB1
1
10 SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
SAPK RST PLED SLED
HDD/LED IR PWR SMI
++
--
+-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Code
DDR 266/333/(400 is subje t to validation)
1-1 85ERV2 / 85ERV2-L Components and Options
RJ45
PHY LAN Controller
for 85ERV2-L only
}
Optional 6-channel A dio-O t Connector

11
Chapter 1 Specification
1-2.1 CPU Socket
CPU Socket 478B on board, supporting Intel® Pentium 4 processors
(including Intel Hyper-threading CPUs) in 478-pin package for :
-- 533/400MHz System Bus;
-- Hyper-pipelined technology;
-- Advanced dynamic execution;
-- Advanced transfer cache;
1-2.2 System Chipsets
• North Bridge VIA P4X400A (P4X400 CE Version) for supporting 4X133
4X100MHz system Bus, Hub interface, AGP4X/8X interface and DDR
333/266/200 DRAM memory interface, with an enhancement of
support of *DDR 400 DRAMs which should have passed the Soltek
DDR 400 Memory Module Validation.
• South Bridge VIA VT8235 working with North Bridge supporting the
double speed V-Link, LPC Super I/O, upstream Hub interface, PCI
interface, IDE interface, LAN interface, USB V2.0 interface, as well
as AC’97 Audio 6-channel interface.
1-2.3 Memory
3 DDR DIMM 184-pin slots on board for DDR *400/333/266/200 DRAMs:
• Supporting unregistered, non-ECC DDR *400/333/266/200 DRAM up
to 3 GBs
• Supporting installation of mixed volumes yet same type of DDR DRAM
modules
*Soltek Computer Inc. typically runs a DDR 400 Memory Module
Validation Program for Chipset VIA P4X400A. Detailed information
is available in Soltek Web Site: WWW.soltek.com.tw
1-2.4 AMI BIOS
• Supporting Plug & Play V1.0
• Flash Memory for easy upgrade
• Supporting BIOS Writing Protection and Year 2000 compliant
• Supporting BIOS Setup (See Chapter 4 BIOS Setup)
1-2 Mainboard Specifications
1-2.5 Accelerated Graphics Port (AGP) Interface
AGP Controller embedded on board, supporting:
• 1.5V(4X/8X) power mode only, 1 AGP Slot supported
• 4x AD and SBA signaling, AGP pipelined split-transection longburst
transfers up to 2GB/sec.
• AGP 4X/8X only, AGP V3.0 compliant

12
85ERV2 / 85ERV2-L
1-2.7 M lti-I/O F nctions :
• PCI EIDE Controller, supporting:
-- 2x Ultra ATA133 / 100 / 66 IDE connectors supporting up to 4 IDE
devices
• Dedicated IR Functions:
-- Third serial port dedicated to IR function either through the two
complete serial ports or the third dedicated port Infrared-IrDA (HPSIR)
and ASK (Amplitude Shift Keyed) IR
• Multi-mode parallel data transfer:
-- Standard mode, high speed mode ECP and enhanced mode EPP
• Floppy Disk connector:
-- One FDD connector supporting 2 floppy drives with drive swap support
• Universal Serial Bus Transfer Mode:
-- USB V2.0 compliant, 480 Mb/s USB Bus, supporting Win 2000 and later
operating system; USB drivers provided in Support CD for installation
-- 2 built-in USB connectors and 2 USB pin-headers which require 2 op-
tional USB cables to provide 4 more optional USB ports
• PS/2 Keyboard and PS/2 Mouse
• UARTs (Universal Asynchronous Receiver / Transmitter):
-- Two complete serial ports (COM1 & COM2) on board
1-2.8 Expansion Slots
• 6 PCI bus Master slots
• 1 AGP 4X/8X slot
• 3 DDR DIMM slots
1-2.6 Advanced System Power Management:
• ACPI 1.0B compliant (Advanced Configuration and Power Interface)
• APM V1.2 compliant (Legacy Power Management)
• ACPI POS (Power On Suspend)
• PS/2 Keyboard & Mouse Power On
• Supporting Ring Power Up Control for Wake-on-Modem (external)
and Wake-on-LAN (via Connector WOL1)
• Real Time Clock (RTC) with date alarm, month alarm, and century
field

13
Chapter 1 Specification
1-2.9 AC’97 A dio Codec on board
AC’97 Audio Codec 2.2 compliant on board
1-2.10 LAN on board (85ERV2-L only)
Fast Ethernet Controller integrated in VT8235 and PHY VIA VT6103:
• Supporting 10/100Mb Fast Ethernet Base T LAN
• Supporting Wake On LAN through on-board WOL1 connector
• LAN Driver enclosed in Support CD for user’s installation.
• Supporting up to 6 channels of PCM audio output
• 6 channel audio consists of Front Left, Front Right, Back Left, Back
Right, Center and Woofer for complete surrround sound effect
• AC’97 Audio Codec Driver enclosed in Support CD for user’s
installation.
1-2.11 Hardware Monitor on board
• Hardware Monitor integrated in Super I/O IT8705F, providing moni-
toring and alarm for flexible desktop management of hardware voltage,
temperatures and fan speeds.
• Utility Software SmartGuardian for displaying Monitoring status is
enclosed in Support CD for user’s installation.
1-2.13 Form Factor
• ATX form factor, ATX power supply, version 2.03 compliant, supported
by one Main Power Connector, one +12V Power Connector and one
Peripheral Power Connector
• Mainboard size: 305mm x 220mm
1-2.12 6-channel So nd O tp t S pport (optional)
• This series is designed with an optional 6-channel Audio-out connec-
tor Audio1”. If this option is chosen, it will provide 3 additional audio-
out ports for the 6-channel sound.

14
85ERV2 / 85ERV2-L
1-3 Mainboard Specification Table
CPU
North Bridge
South Bridge
BIOS
Memory
I/O Chip
AGP interface
Audio
IDE Interface
Networking
PCI Slots
I/O Connectors
VGA Display
Other Features
Socket 478B for Intel P4 (HTincluded) CPUs
VIA P4X400A, supporting 533/400MHz FSB
VIA VT8235
AMI BIOS
Supporting DDR 333/266/200 DRM, up to 3GB
(DDR 400 Memory Module subject to validation)
IT8705F
1.5V AGP4X/8X mode only
AC’97 Audio V2.2 compliant, 6-channel interface
2 UATA 66/100/133 IDE ports
VIA LAN Controller, 1xRj45 (85ERV2-L only)
6 PCI Master slots on board
6xUSB ports (V2.0), 1xFDD port, 2xCOM ports,
1xLPT, 1xIrDA, 1xPS/2 K/B, 1xPS/2 Mouse,
VGA not integrated on board
BIOS Writing Protection;
Hardware Monitoring in IT8705F
Keyboard/Mouse Power On;
ATX 2.03 Power Supply;
ATX form factor
SL-85ERV2/ 85ERV2-L Specifications and Feat res

15
Chapter 1 Specification
1-4 Chipset System Block Diagram
Intel Pentium 4 + VIA P4X400A + VIA VT8235 Diagram
Intel Penti m 4 CPU
System B s 533/400MHz
System
Memory
DDR memory
Interface
DDR 333/266/200
VIA P4X400A
North Bridge
AGP Slot AGP 4X/8X
V Link
VT8235
So th
Bridge
PCI B s
AC’97 2.2
ATA 133/100/66
4 IDE
Devices
USB B s V2.0/1.1 USB
Ports
6 PCI Slots
Audio
Connectors
PHY
(VT6103)
RJ45 (Optional)
IR
FDD
Mouse/Keyboard
Serial Ports
Printer Port
Game/MIDI
H/Monitor
BIOS
LPC I/O
IT8705F
(DDR 400 s bject
to validation)
(6-channel)
MII
Fast Ethernet Interface

16
85ERV2 / 85ERV2-L
Chapter 2 Hardware Setup
1. We recommend to install your CPU before any other components.
For detailed installation instructions of processor, you can also refer
to the pamphlet enclosed in your CPU package.
2. Installing a cooling fan with a good heatsink is a must for proper heat
dissipation for your CPU. Get ready an appropriate fan with heatsink
for proper installation. Improper fan and installation will damage your
CPU.
3. In case CPU Vcore, CPU clock or Frequency Ratio is adjustable on
board, please follow the instructions described in the User Manual
for proper setup. Incorrect setting will cause damage to your CPU.
The following topics are incl ded in this chapter:
To Get things ready for hardware set p !
2-1 Penti m 4 CPU and Installation
2-2 Penti m 4 CPU Fan Installation
2-3 Memory Installation with Warning LED
2-4 AGP4X/8X Slot Installation
2-5 IDE Connector Installation
2-6 Floppy Drive Connector ( FDC ) Installation
2-7 ATX 2.03 Power S pply Installation
2-8 J mper Settings
2-9 Other Connectors Config ration
2-10 IRQ Description

17
Chapter 2 Hardware Setup
2-1.1 To Identify a Penti m 4 CPU
Intel
penti m 4
2.4 GHz / 512 / 533 / 1.5V
1) CPU Working Freq ency
2) CPU L2 Cache
3) System Clock
4) CPU Voltage Vcore
On the heatsink side of a Pentium 4 CPU, there printed is a line of
figures to identify its specifications. The line consists of 4 parts:
1) CPU Working Frequency: This part depicts the working frequency
of the CPU. For example:
2.4 GHz depicts that this CPU is locked to 2.4 GHz working frequency
(multiplier 18 x 133MHz CPU clock);
2A GHz depicts that this CPU is an A version, locked to 2.0 GHz
working frequency (multiplier 20 x 100MHz CPU clock);
2) CPU L2 Cache: This part depicts the L2 Cache size. For Example:
512 stands for 512 MB L2 Cache; 256 stands for 256 MB L2 Cache;
3) System Clock: This part depicts the System Clock (Front Side Bus)
to be provided by the CPU. For example:
533 stands for a 533MHz system bus provided by this 133MHz CPU
times 4;
400 stands for a 400 system clock provided by a 100 MHz CPU x 4;
(Note: P4 CPU is a quadpumped CPU. The system bus is provided by
the CPU clock x 4. Therefore, user can figure out the P4 CPU clock
from the System Clock devided by 4.)
4) CPU Voltage Vcore: This part depicts the CPU Voltage. For example:
1.5V stands for a CPU of 1.5Vcore.
2-1 Penti m 4 CPU and Installation
(Hyper-threading CPUs incl ded)

18
85ERV2 / 85ERV2-L
mPGA478B
Intel Pentium 4
mPGA478B
Pin 1
This mainboard is built with CPU
Socket 478B ( 478-pin) supporting
the Intel Pentium 4 CPU:
• Follow the steps described in this
section to install the 478-pin Pen-
tium 4 CPU into the on board
Socket 478.
• After installation of Pentium 4 CPU,
you must also install the specific
Pentium 4 CPU fan designed in
tandem with this CPU. This CPU
Fan installation is described in next
section.
• This mainboard supports Hyper-
threading dual-in-one CPU, the
function of which can be enabled
by Windows XP. (See illustration
on the right.)
1. First pull sideways the lever of
Socket 478, and then turn it up
900 so as to raise the upper layer
of the socket from the lower
platform.
3. Make sure that all CPU pins have
completely entered the socket
and then lower down the lever
to lock up CPU to socket.
2. Configure Pin 1 of CPU to Pin 1
of the Socket, just as the way
shown in the diagram on the
right. Adjust the position of CPU
until you can feel all CPU pins
get into the socket with ease.
mPGA478B
Intel Pentium 4
Pin 1
( If Hyper-threading CPU is
installed successfully with O/S
Win XP, the O/S will enable the
dual-in-one CPU function.)
2-1.2 CPU Installation with Socket 478B

19
Chapter 2 Hardware Setup
2-2 Penti m 4 CPU Fan Installation
Connect Fan Connector to CPU FAN connector
Press down 4 corners to lock fan to fanbase
Pentium 4 Fanbase CPU Fan Connector

20
85ERV2 / 85ERV2-L
2-3 Memory Installation with Warning LED
184-Pin DIMM Notch Key Definitions (2.5V)
DRAM Key Position Voltage Key Position
2.5V
Module Latch
• This series supports up to 3GB unbuffered DDR 333/266/200 DRAM,
with 3 DDR DIMM slots on board. Do not insert other type of modules
into these slots. DDR 400 Memory Module can be compatible with
this series if it has passed Soltek validation. soltek Computer Inc.
typically runs a DDR 400 Memory Module Validation Program for
Chipset VIA P4X400A. Detailed information is available in Soltek Web
Site: WWW.soltek.com.
• DDR DIMM slot has 184-pins and one notch. Insert a DDR SDRAM
vertically into the 184-pin slot with the notch-to-rib matching. Press
the Module down in a gradual way until it surely reaches the bottom
and clicks straight up the two latches on the left and right of the slot.
If any one of the latches has not turned up completely, you should
unplug the module and press it down a bit more firmly.
How to tackle the memory Modules:
• Make sure to unplug your power supply before adding or removing
memory module.
• Pay attention to the orientation of the DIMM slots.
• Make sure you have the right type of memory module for your
mainboard.
2-3.1 To Install DDR DRAM Mod le
DDR Notch
DDR Rib
2-3.2 To Remove a DIMM
Press down the holding latches on both sides of slot to release the
module from the DIMM slot.

21
Chapter 2 Hardware Setup
2-4 AGP 4X/8X Slot Installation
The AGP slot on board supports 1.5V AGP4X/8X card only. A Rib is
specifically added to the 4X/8X AGP slot so as to match the AGP 4X/8X
card. To insert a 3.3V AGP 2X card into the AGP 4X slot will damage
the system chip and burn the 1.5V circuitry.
AGP Accelerator
AGP8X/4X Slot
8X/4X
8X/4X Rib
Notch
An AGP 4X card will support a data transfer rate up to 1GB/sec., while
an AGP 8X card will do up to 2GB/sec.
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Conne tor
+12 Power Conne tor
41
Main Power Conne tor
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2 IDE1
FDC1
1 3
FAN2
FAN1
1
FAN3
1
1
FAN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI PORT
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Code
JUSB2
1
10
JUSB1
1
10
SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
SAPK RST PLED SLED
HDD/LED IR PWR SMI
++
--
+-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Code
DDR 266/333/(400 is subje t to validation)

22
85ERV2 / 85ERV2-L
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Conne tor
+12 Power Conne tor
41
Main Power Conne tor
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2 IDE1
FDC1
1 3
FAN2
FAN1
1
FAN3
1
1
FAN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI PORT
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Code
JUSB2
1
10
JUSB1
1
10
SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
SAPK RST PLED SLED
HDD/LED IR PWR SMI
++
--
+-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Code
DDR 266/333/(400 is subje t to validation)
2-5 IDE Connector Installation
To install IDE Connector, you may connect the blue connector of IDE
cable to the primary (IDE1) or secondary(IDE2) connector on board,
and then connect the gray connector to your slave device and the black
connector to your master device. If you install two hard disks, you must
configure the second drive to Slave mode by setting its jumpers correctly.
Please refer to your hard disk documentation for the jumper settings.
Orient the red line on the
IDE Flat Cable to Pin1.
IDE1
Pin 1 (to Red Line)
IDE2 IDE Connector
Gray connector
Blue connector
Black connector
Red line
IDE Flat Cable (To Mainboard)
(To slave device)
(To Master Device)

23
Chapter 2 Hardware Setup
To install FDC (Floppy Drive Connector), you should connect the end of
FDC cable with single connector to the board , and connect the other
end with two connectors to the floppy drives.
2-6 Floppy Drive Connector ( FDC ) Installation
Floppy Drive Connector:
Orient the red line of the
Floppy Flat Cable to Pin1.
Pin 1 (to Red Line)
FDC
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Conne tor
+12 Power Conne tor
41
Main Power Conne tor
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2 IDE1
FDC1
1 3
FAN2
FAN1
1
FAN3
1
1
FAN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI PORT
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Code
JUSB2
1
10
JUSB1
1
10
SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
SAPK RST PLED SLED
HDD/LED IR PWR SMI
++
--
+-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Code
DDR 266/333/(400 is subje t to validation)
FDC Cable
To 1st Floppy Drive
To mainboard
To 2nd Floppy Drive
Red line

24
85ERV2 / 85ERV2-L
DIMM 3
DIMM 1
DIMM 2
PCI 1
PCI 2
PCI 3
PCI 4
PCI 5
PCI 6
FLASH BIOS
Li
Battery
Peripheral Power
Conne tor
+12 Power Conne tor
41
Main Power Conne tor
VIA
P4x400A
VIA
VT8235
1
mPGA478B
IDE2 IDE1
FDC1
1 3
FAN2
FAN1
1
FAN3
1
1
FAN4
IT8705F
LPC I/O
LPT1
COM1
MIC
GAME/MIDI PORT
LINE OUT
LINE IN
PS/2 K/B¤
(underside)
PS/2 Mouse
(on top)
USB1 (underside)
USB0 (middle)
Rj 45
(on top)
AC'97
Code
JUSB2
1
10
JUSB1
1
10
SCR1
1
14
Audio 1
1
14
AGP 4X/8X
WOL1
1
RT1
RT2
1
JP1
1
JBAT1
1
JP2
SAPK RST PLED SLED
HDD/LED IR PWR SMI
++
--
+-
1
30
VIA VT6103
PHY (LAN Controller)
CD1
1
3
2
COM2
Audio Code
DDR 266/333/(400 is subje t to validation)
2-7 ATX V 2.03 Power S pply Installation
ATX V2.03 power supply is strongly recommended for mainboard run-
ning with 2GMHz or higher CPU.
To set up Power Supply on this series:
1. Connect the on-board Main Power Connector (20-pin) to the Main
Power Connector (20-pin) of an ATX Power Supply which can be
either of the latest version 2.03 or of earlier ATX format.
2. If you use an ATX Power Supply Version 2.03 or later, you can now
connect the on-board square-shaped +12V Connector to the square-
shaped +12V Connector of your ATX Power Supply. In this case, it is
not necessary for you to connect the on-board 4-pin Peripheral Power
Connector to your Power Supply.
3. If you use an ATX power Supply of an older version than V2.03, you
cannot find a square-shaped +12V Connector with your Power Supply;
you must then connect the on-board 4-pin Peripheral Power
Connector to the 4-pin Peripheral Power Connector of your Power
Supply.
+12V Power Connector
Peripheral
Power Connector
1
2
3
4
+12V GND
GND+12V
Pin 1
Pin 4
GND
GND
+5V
+12V
Main Power Connector
(20-pin)
-12V
5SB
PWR OK
GND
GND
GND
GND
GND
GND
+5V
+5V
-5V
+5V
+5V
+3.3V
+3.3V +3.3V
PS ON#
Pin1 Pin11
-12V
GND