Viglen Motherboard Vig390s User manual

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Vig390s
Motherboard
Manual

Vig390s Motherboard Manual V1.0 1
Viglen, EMC and the ‘CE’ mark
CE Marking
European standards are being harmonised across borders. If products comply with the same standards in all
European countries, product exporting and importing is made simple - paving our way to a common market. If
you buy a product with a 'CE' mark on it (shown below), on the box, in the manual, or on the guarantee - it
complies with the currently enforced directive(s).
Introduction to EMC
EMC (Electromagnetic Compatibility) is the term used to describe certain issues with RF (Radio Frequency)
energy. Electrical items should be designed so they do not interfere with each other through RF emissions. E.g.
If you turn on your microwave, your television shouldn't display interference if both items are CE marked to the
EMC directive.
If emitted RF energy is not kept low, it can interfere with other electrical circuitry - E.g. Cars Automatic Braking
Systems have been known to activate by themselves while in a strong RF field. As this has obvious
repercussions ALL electrical products likely to cause RF related problems have to be 'CE' marked from 1st
January 1996 onwards.
If a product conforms to the EMC directive, not only should its RF emissions be very low, but its immunity to RF
energy (and other types) should be high. The apparatus has to resist many 'real world' phenomena such as
static shocks and mains voltage transients.
Viglen’s Environment laboratory
To gain a 'CE' mark, the Viglen computer range has had to undergo many difficult tests to ensure it is
Electromagnetically Compatible. These are carried out in the in-house 'Environment lab' at Viglen Headquarters.
We have made every effort to guarantee that each computer leaving our factory complies fully with the correct
standards. To ensure the computer system maintains compliance throughout its functional life, it is essential you
follow these guidelines.
> Install the system according to Viglen’s instructions
> If you open up your Viglen:
> Keep internal cabling in place as supplied.
> Ensure the lid is tightly secured afterwards
> Do not remove drive bay shields unless installing a 'CE' marked peripheral in its place
> The clips or ‘bumps' around the lips of the case increase conductivity - do not remove or damage.
> Do not remove the ferrite ring from the L.E.D cables.
> Only use your Viglen computer with 'CE' marked peripherals
This system has been tested in accordance with European standards for use in residential and light industrial
areas-this specifies a 10 meter testing radius for emissions and immunity. If you do experience any adverse
affects which you think might be related to your computer, try moving it at least 10 meters away from the affected
item. If you still experience problems, contact Viglen’s Technical Support department who will put you straight
through to an EMC engineer - s/he will do everything possible to help. If modifications are made to your Viglen
computer system, it might breach EMC regulations. Viglen take no responsibility (with regards to EMC
characteristics) of equipment which has been tampered with or modified.

Vig390s Motherboard Manual V1.0 2
Copyrights and Trademarks
Please note
The material in this manual is subject to change without notice.
Trademarks
Microsoft, Windows, Windows NT, Windows 95,Windows 98, Windows ME,
Windows 2000 Pro, Windows XP Pro and MS-DOS are registered trademarks of
Microsoft Corporation. IBM PC, XT, AT and PS/2 are trademarks of International
Business Machines Corporation. Pentium and Pentium Pro are registered
trademarks of Intel Corporation. AMI BIOS is a registered trademark of American
Megatrends. All other trademarks are acknowledged. JAC-UP, Genie, Contender,
Dossier, Vig, Viglen, and Envy are trademarks of Viglen Limited.
Copyright and Patents
This manual and all accompanying software and documentation are copyrighted and
all rights reserved. This product, including software and documentation, may not, in
whole or in part, be copied, photocopied, translated or reduced to any electronic or
machine-readable form, without prior written consent except for copies retained by
the purchaser for backup.
© Copyright 2005 Viglen Limited
All Rights Reserved
Vig390s Manual Version 1.0
Printed in the United Kingdom
Liability
No warranty or representation, either expressed or implied, is made with respect to
this documentation, its quality, performance, merchantability or fitness for a particular
purpose. As a result the documentation is licensed as is, and you, the licensee, are
assuming the entire risk as to its quality and performance. The vendor reserves the
right to revise this operation manual and all accompanying software and
documentation and to make changes in the content without obligation to notify any
person or organisation of the revision or change.
In no event will the vendor be liable for direct, indirect, special, incidental or
consequential damages arising out of the use or inability to use this product or
documentation, even if advised of the possibility of such damages. In particular, the
vendor shall not have liability for any hardware, software or data stored or used with
the product, including the costs of repairing, replacing or recovering such hardware,
software or data.

Vig390s Motherboard Manual V1.0 3
Contents
Chapter 1 Overview 5
System Board Components 6
Back Panel Connectors 7
Feature Summary 9
System Processor 10
SystemMemory 11
Memory Configurations 12
Intel® E7525 chipset (Northbridge) 15
Intel® 6300ESB I/O Controller (Southbridge) 16
Vig390s motherboard block diagram 17
USB Support 18
IDE Support 18
Parallel ATA IDE Interfaces 19
Serial ATA Support 19
Real-Time Clock, CMOS SRAM and Battery 20
I/OController 20
Audio Subsystem 22
Audio Connectors 23
LAN Subsystem 24
Hardware Management Subsystem 25
Power Management 26
ACPI 26
Hardware Support 28
Chapter 2 System Board Options 31
Overview of Jumper Settings 33
System Board Jumper Settings 34
Motherboard Connectors 38
Front Panel Connectors 39
Upgrading the CPU 40
Installing & Removing Dual In-Line memory Modules 46
Replacing the Clock/CMOS RAM Battery 48
Chapter 3 Solving Problems 49
Resetting the System 49
Troubleshooting Procedures 50
Problems Operating Add-in Boards 51
Problems and Suggestions 52
Error and Information Messages 54
BIOS Beep Codes 55

Vig390s Motherboard Manual V1.0 4
Chapter 4 System BIOS 56
What is the BIOS? 56
The Power-on Sequence 56
AMI BIOS 57
Plug and Play: PCI Auto-configuration 58
PCI IDE Support 58
Desktop Management Interface (DMI) 59
Advanced Power Management (APM) 59
Advanced Configuration and Power Interface (ACPI) 61
Configuring the Motherboard using BIOS Setup 63
Setting the Processor Speed 63
Clearing the Passwords 63
BIOS Setup Program 64
Main Menu 67
Advanced Menu 75
Power Menu 88
Boot Menu 94
Exit Menu 101
Upgrading the BIOS 102
Chapter 5 Technical Information 105
Enhanced IDE 105
Operating Systems and Hard Drives 106
Connector Signal Details 107
Power Supply Connector 110
Motherboard Resources 113
Other Information 115
Chapter 6 Glossary 116
Notes 120
Chapter 7 Suggestions 121

Vig390s Motherboard Manual V1.0 5
Chapter 1: Overview
Introduction
This manual describes the Viglen Vig390s motherboard inside your computer. The
motherboard is the most important part of your computer. It contains all of the CPU,
memory and graphics circuitry that make the computer work.
The motherboard contains the very latest CPU design, the Intel Xeon™ processor,
which includes Intel NetBurst® Microarchitecture with 800 MHz system bus, Internet
Streaming SIMD Extensions 3, Intel Hyper-Threading Technology hardware support
for multi-threaded applications and Intel’s Extended Memory 64-bit technology
(EM64T). All of which are designed to vastly improve both multimedia and
communications on your PC. The combination of this technology and Viglen
expertise make this a formidable computer.
This manual contains technical information about the Viglen VIG390S motherboard
and other hardware components inside your computer. If you are new to computers
we recommend that you read the user guide first. If you are an experienced
computer user this manual should provide all the information you will need to
perform simple upgrades and maintenance.
We hope that this manual is both readable and informative. If you have any
comments for suggestions about how we could improve the format then please fill
out the form at the back of the manual and send it to us.
Above all we hope that you enjoy using your Viglen computer.

Vig390s Motherboard Manual V1.0 6
System Board Components
Figure 1: Motherboard Layout & Components
Table 1: Motherboard Layout Descriptions
A 8 Mbit Firmware Hub (FWH) BIOS W Front Chassis Fan 2
B Game port header (optional) X Secondary IDE connector
C Motherboard speaker Y Primary IDE connector
D I/O controller Z Southbridge Intel® 6300ESB
E Aux audio connector AA Serial ATA (S-ATA) connectors
F CD audio connector BB Floppy drive connector
G Audio codec AD1980 CC Front panel audio connector
H LAN controller Broadcom BCM5751 DD Front panel USB connectors 5/6
I Front panel audio connector EE
USB controller (VIA VT6212L)
5/6/7/8
J Rear Chassis Fan 2 connector FF Battery
K Rear I/O back panel connections GG Front panel USB connectors 7/8
L Rear Chassis Fan 1 connector HH
IEE1394a controller TiTBS43AB22A
PCI
M Memory DIMM slots B2 A2 II Front IEE1394a header connector
N Memory DIMM slots B1 A1 JJ PCI4 PCI-X connector (64bit)

Vig390s Motherboard Manual V1.0 7
O SSI ATX Power connector 24 way KK PCI3 PCI-X connector (64bit)
P CPU1 FAN connector LL PCI5 PCI connector (32bit 5V)
Q Northbridge Intel © E7525 MM PCI2 PCI-Express x 16 connector
R ATX 12V1 connector 6 way NN PCI1 PCI-Express x 4 connector
S
CPU 1 socket (mPGA604 pin socket
for Intel ® Xeon ™) OO
WIFI proprietary connector (not
supported)
T
CPU 2 socket (mPGA604 pin socket
for Intel ® Xeon ™) PP SMBus connector
U CPU 2 FAN connector QQ Second serial port header
V Front Chassis Fan 1 RR Power to motherboard LED
Note:
1. SATA 1 is to be used for Boot disk SATA 2 for data disk.
2. SATA RAID 0/1 is supported by Windows XP + SP1 and Windows 2000Pro + SP4.
3. Windows XP supports 2 CPU’s with hyperthread enabled, if 2 CPU’s are to be used with
Windows 2000Pro hyperthread must be disabled.
Back Panel Connectors
The motherboard external IO connectors are attached to a metallic I/O shield.
This shield serves several purposes:
•It protects the sensitive motherboard from any external EMC interference.
•It stops the computer from interfering with other electrical devices.
•It allows the motherboard to be easily upgraded in the future without having to
resort to buying a whole new case. Simply change the I/O shield to match the
motherboard.
The I/O shield provides external access to PS/2 keyboard and mouse connectors as
well as one serial port, one parallel port, two USB ports, one LAN Port and the audio
connectors.
Figure 2: I/O shield
Note: Power to the computer should be turned off before a keyboard or mouse is
connected or disconnected.

Vig390s Motherboard Manual V1.0 8
Figure 3: Back Panel Connectors
Table 2: Back Panel Connectors.
Item Description Item Description
1 PS/2* mouse port (Green) 7 Mic in (Pink)
2 Parallel port (Burgundy) 8 USB ports (two) 3 and 4
3 IEE1394a 9 USB ports (two) 1 and 2
4 LAN RJ45 10 Serial port A (Teal)
5 Audio line In (Blue) 11 SP/DIF 5.1 audio out
6 Line Out (Lime green) L and
R audio 12 PS/2 keyboard port (Purple)
Note: The back panel audio out connectors are designed to power headphones or
amplified speakers only. Poor audio quality occurs if passive (non-amplified)
speakers are connected to these outputs.
Audio 2/4/6 Channel configurations
The audio ports may be re configured via the audio control panel, default operation is
2 channel audio.
Table 3: Audio 2/4/6 Channel configurations
Port 2 channel 4 channel 6 channel
Audio line In
(Blue)
Line In Line In Bass/Centre
Line Out (Lime
green)
Line out Front Speaker
Out L & R
Front Speaker
Out L & R
Mic in (Pink) Mic In Rear Speaker
Out L & R
Rear Speaker
Out L & R

Vig390s Motherboard Manual V1.0 9
Feature Summary
The VIG390S motherboard supports Intel Pentium Xeon™ processors with 1MB of
third-level cache integrated in a micro PGA 604 Socket package operating at speeds
up to 3.6GHz. Single or dual processors are supported but should be identical in
speed and CPU stepping revision.
Table 4: Feature Summary
Form Factor VIG390S: extended ATX (9.8 inches by 12.0 inches [250.00 millimetres
by 305.00 millimetres])
Processor - Single or dual Pentium Xeon CPU
- 800MHz FSB
- Integrated 512MB second and 1MB third level cache
- Socket micro PGA 604 connector 604-pin FC-µPGA4
Supported CPU
speeds
CPU Speed FSB L2 Cache L3 Cache
3.2. to 3.6GHz 800MHz 512K 1M
Memory - Four 204-pin DDR2 SDRAM Dual Inline DIMM sockets.
- Support for up to 8GB of DDR2 400 ECC 72bit
Chipset - Northbridge Intel® 7525 Memory Controller Hub (GMCH)
- Southbridge Intel® 6300ESB I/O Controller Hub (ICH5)
- 8 Mbit Firmware Hub (FWH)
Video - PCI-Express connector supporting x1 ,x4, x8 and x16 lane VGA cards
Audio - Audio subsystem using the ADI AD1980 6 channel audio codec.
I/O Controller - Southbridge Intel® 6300ESB I/O Controller Hub (ICH5)
USB - Support for USB 2.0 devices
Peripheral Interfaces - Eight USB Ports
- One Serial Port
- One Parallel Port
- Two Serial ATA IDE interfaces
- Two Parallel ATA IDE interfaces with UDMA 33, ATA-66/100 support
- One diskette drive interface
- PS/2 keyboard port
- PS/2 mouse port
- One IEEE1394a Port
LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the
Broadcom BMC5751 PCI Express Gigiabit LAN Controller PCI-E 1.0a
interface
BIOS - AMI BIOS (resident in the 8 Mbit FWH)
- Support for Advanced Configuration and Power Interface (ACPI), Plug
and Play SMBIOS 2.3, WfM2.0,DMA2.0a.
Instantly Available PC
Technology
- Support for PCI Local Bus Specification Revision 2.2
- Suspended to RAM support
- Wake on PCI, RS-232, front panel, PS/2 devices and USB ports
Expansion Capabilities - One PCI (32bit 5v) bus add-in card connectors
- Two PCI-X (64bit) bus add-in card connector
- One PCI-Express (x16 lane) add-in card connector
- One PCI-Express (x4 lane) add-in card connector
Hardware Monitor
Subsystem
- Hardware monitoring and fan control ASIC
- Voltage sense to detect out of range power supply voltages
- Thermal sense to detect out of range thermal values
- Four chassis fan connectors with activity monitor(two rear and two
front)
- 2 x CPU Heatsink FAN speed activity monitor
- Thermal Fan speed control

Vig390s Motherboard Manual V1.0 10
System Processor
The VIG390S motherboard supports a single or dual Pentium Xeon™ processor.
The processor’s VID pins automatically program the voltage regulator on the
motherboard to the required processor voltage. In addition, the front side bus speed
is automatically selected. The motherboard currently supports processors that run
internally up to 3.6GHz and have a 512 KB second-level cache and 1MB third-level
cache.
The Intel Xeon™ processor incorporates Intel NetBurst® Microarchitecture with 800
MHz system bus, Internet Streaming SIMD Extensions 3, Intel Hyper-Threading
Technology hardware support for multi-threaded applications and Intel’s Extended
Memory 64-bit technology (EM64T).
The processor also implements MMX™ technology and maintains full backward
compatibility with the 8086, 80286, Intel386 ™, Intel486 ™, Pentium, Pentium Pro,
Pentium II & Pentium III processors. The processor’s numeric coprocessor
significantly increases the speed of floating-point operations and complies with
ANSI/IEEE standard 754-1985.
Microprocessor Packaging
The Xeon™ processor comes in a micro PGA 604 package that connects to the
motherboard through a socket 604 connector. The package consists of:
•Processor card including the processor core and the second-level and third level
cache, burst pipelined synchronous static RAM (BSRAM) and tag RAM.
•Thermal plate.
Second Level Cache
The second-level cache is located on the die of the CPU itself. The cache includes
burst pipelined synchronous static RAM (BSRAM) and tag RAM. All supported
onboard memory can be cached.
Processor Upgrades
The motherboard can be upgraded with an Intel Xeon™ processor that runs at
higher speeds with a maximum of 3.6GHz.

Vig390s Motherboard Manual V1.0 11
System Memory
Main Memory
The motherboard has four DDR2 SDRAM Dual Inline Memory Module (DIMM)
sockets. Support for up to a maximum memory size of 8GB. The BIOS automatically
detects memory type, size, and speed.
The motherboard supports the following memory features:
•240 pin DDR2 400 MHz SDRAM DIMMs with gold-plated contacts
•Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organisation are not supported.
•8 GB maximum total system memory total amount of addressable memory.
•Minimum total system memory: 256 MB
•72bit registered ECC DIMMs
•Serial Presence Detect
Notes:
To be fully compliant with all applicable DDR2 SDRAM memory specifications, the
board should be populated with DIMMs that support the Serial Presence Detect
(SPD) data structure. This allows the BIOS to read the SPD data and program the
chipset to accurately configure memory settings for optimum performance. If non-
SPD memory is installed, the BIOS will attempt to correctly configure the memory
settings, but performance and reliability may be impacted or the DIMMs may not
function under the determined frequency.
Table 5: Supported Memory Configurations
DIMM
Capacity Configuration SDRAM Density
SDRAM Organisation
Front-side/Back-side
Number of
SDRAM Devices
256 MB SS 256 Mbit 32 M x 8/empty 8
256 MB SS 512 Mbit 32 M x 16/empty 4
512 MB DS 256 Mbit 32 M x 8/32 M x 8 16
512 MB SS 512 Mbit 64 M x 8/empty 8
512 MB SS 1 Gbit 64 M x 16/empty 4
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16
1024 MB SS 1 Gbit 128 M x 8/empty 8
2048 MB DS 1 Gbit 128 M x 8/128 M x 8 16
Note: In the second column, “DS” refers to double-sided memory modules (containing two rows of
DDR SDRAM) and “SS” refers to single-sided memory modules (containing one row of DDR
SDRAM).

Vig390s Motherboard Manual V1.0 12
Memory Configurations
The Vig390s with Intel E7525 MCH supports Dual channel (Interleaved) mode
memory organisation:
Dual channel (Interleaved) mode: This mode offers the highest throughput for real
world applications. Dual channel mode is enabled when the installed memory
capacities of both DIMM channels are equal. Technology and device width can vary
from one channel to the other but the installed memory capacity for each channel
must be equal. If different speed DIMMs are used between channels, the slowest
memory timing will be used.
Single channel (Asymmetric) mode: This mode is equivalent to single channel
bandwidth operation for real world applications. This mode is used when only a
single DIMM is installed or the memory capacities are unequal. Technology and
device width can vary from one channel to the other. If different speed DIMMs are
used between channels, the slowest memory timing will be used.
NOTE:
The DIMM A2 and B2 sockets of both channels are blue. The DIMM A1and B1
sockets of both channels are black.
Figure 4: Memory Channel and DIMM Configuration
Dual channel mode: Installed modules must be the same therefore for 1GB total
system memory two 512MB modules would be installed in sockets A1 and B1.

Vig390s Motherboard Manual V1.0 13
Dual Channel (Interleaved) Mode Configurations
Figure 5 shows a dual channel configuration using two DIMMs. In this example, the
DIMM A1, B1 (black) sockets of both channels are populated with identical DIMMs.
512MB
512MB
Figure 5: Dual Channel (Interleaved) Mode Configuration with Two DIMMs
Figure 6 shows a dual channel configuration using four DIMMs. In this example, the
combined capacity of the two DIMMs in Channel A equal the combined capacity of
the two DIMMs in Channel B. Also, the DIMMs are matched between DIMM1 and
DIMM2 of both channels.
256MB
256MB
512MB
512MB
Figure 6: Dual Channel (Interleaved) Mode Configuration with Four DIMMs

Vig390s Motherboard Manual V1.0 14
Single Channel (Asymmetric) Mode Configurations (Illustration only)
Note:
Dual channel (Interleaved) mode configurations provide the highest memory
throughput. Figure 7 shows a single channel configuration using one DIMM. In this
example, only the DIMM1 (black) socket of Channel A is populated. Channel B is not
populated.
256MB
Figure 7: Single Channel (Asymmetric) Mode Configuration with One DIMM

Vig390s Motherboard Manual V1.0 15
Intel® E7525 chipset (Northbridge)
Intel® E7525 Memory Controller Hub (MCH) chipset, the next generation Intel® dual-
processor (DP) workstation and server chipset technology, offers increased graphics
performance, reduced power consumption, and improved platform reliability and
system manageability.
The Intel® E7525 Chipset MCH is the central hub for all data passing between the
core system elements: processors, memory, PCI Express x16 graphics, PCI Express
I/O and legacy I/O subsystems. It supports dual Intel Xeon processors with 1MB L2
cache over the 800 MHz system bus interface, delivering bandwidth up to 6.4
GB/second. The MCH also supports all of the Intel Xeon processor features, such as
Hyper Threading technology, Enhanced Intel SpeedStep Technology, Intel EM64T
and Streaming SIMD Extensions 3 (SSE3) Instructions.
The PCI Express x16 interface supports a total bandwidth of 8 GB/second (4
GB/second per direction) and directly attaches the MCH to a variety of third-party
graphics adapters. A variety of Intel and third-party I/O solutions communicate
directly with the MCH through the PCI Express x8 interface. The Intel E7525 MCH
has one PCI Express x8 interface that can be bifurcated into two x4 interfaces for
additional configuration flexibility. The bandwidth of the PCI Express x8 is up to 4
GB/second.
The legacy I/O connects to the MCH through the Intel Hub Interface architecture at
256 MB/second. There are two I/O controller hub options: the Intel 82801ER I/O
Controller Hub (ICH5R) and the Intel 6300ESB I/O Controller Hub.
Figure 8: E7525 Block Diagram

Vig390s Motherboard Manual V1.0 16
The Intel® 6300ESB I/O Controller (Southbridge)
The Intel® 6300ESB I/O Controller Hub integrates dual independent Serial ATA
controllers, each capable of up to 150 MB/second transfer rate, for the most
demanding storage data transfers and support for optional third party software RAID
0, 1 technology. Four Hi-Speed USB 2.0 ports allow easy I/O connection, while
offering improved bandwidth compared to USB 1.1 devices. The Intel 6300ESB I/O
Controller Hub also includes one PCI-X 64/66 bus supporting up to 4 PCI-X 64/66
MHz interfaces.
Figure 9: 6300 Block Diagram

Vig390s Motherboard Manual V1.0 17
Vig390s motherboard block diagram
Figure 10: Vig390s Block Diagram
The Vig390s motherboard integrates both the Intel E7525 MHC and Intel 6300ESB
I/O controller with the following additional components:
- Gigabit LAN BCM5751
- IEEE1394a controller TBS43AB22A
- USB 2.0 controller VT6202
- H/W monitor W83792B
- Supper I/O controller W83627THF-A
Note: The Adaptec S-ATA RAID controller AIC-8130 is an option not incorporated
into the Vig390s.

Vig390s Motherboard Manual V1.0 18
USB Support
The motherboard has four rear USB 2.0 ports; note optional front panel USB adaptor
connector is required to use the internal USB headers to provide up to 4 more
additional ports. One USB peripheral can be connected to each port. For more than
four USB devices, an external hub can be connected to either port. The
motherboard fully supports the universal host controller interface (UHCI) and (EHCI)
and uses UHCI-and EHCI- compatible drivers. The ICH5 provides the USB controller
for all ports.
The port arrangement is as follows:
•Two ports are implemented with stacked back panel connectors, adjacent to
the PS/2 connectors
•Two ports are implemented with stacked back panel connectors, adjacent to
the audio connectors
•Four ports are routed to two separate front panel USB connectors
Note: USB 2.0 drivers are available for Windows 2000 Pro and Windows XP, and
currently not supported by any other operating system.
USB features include:
•Self-identifying peripherals that can be plugged in while the computer is
running.
•Automatic mapping of function to driver and configuration.
•Supports isochronous and asynchronous transfer types over the same set of
wires.
•Supports up to 127 physical devices.
•Guaranteed bandwidth and low latencies appropriate for telephony, audio,
and other applications.
•Error-handling and fault-recovery mechanisms built into the protocol.
Note: Computer systems that have an unshielded cable attached to a USB port may
not meet FCC Class B requirements, even if no device or a low-speed (sub-channel)
USB device is attached to the cable. Use shielded cable that meets the
requirements for high-speed (fully rated) devices.
IDE Support
The VIG390S motherboard provides four IDE interface connectors:
•Two Parallel ATA (P-ATA) IDE connectors, which support a total of four
devices (two per connector)
•Two Serial ATA (S-ATA) IDE connectors, which support one device per
connector

Vig390s Motherboard Manual V1.0 19
Parallel ATA IDE Interfaces
The ICH5’s Parallel ATA IDE controller has two independent bus-mastering Parallel
ATA IDE interfaces that can be independently enabled. The Parallel ATA IDE
interfaces support the following modes:
•Programmed I/O (PIO): processor controls data transfer.
•8237-style DMA: DMA offloads the processor, supporting transfer rates of up
to 16 MB/sec.
•Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and
transfer rates of up to 33 MB/sec.
•ATA-66: DMA protocol on IDE bus supporting host and target throttling and
transfer rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and
is device driver compatible.
•ATA-100: DMA protocol on IDE bus allows host and target throttling. The
ICH5’s ATA-100 logic can achieve read transfer rates up to 100 MB/sec and
write transfer rates up to 88 MB/sec.
Serial ATA Support
The ICH5’s Serial ATA controller offers two independent Serial ATA ports with a
theoretical maximum transfer rate of 150 MB/s per port. One device can be installed
on each port for a maximum of two Serial ATA devices. A point-to-point interface is
used for host to device connections, unlike Parallel ATA IDE which supports a
master/slave configuration and two devices per channel.
For compatibility, the underlying Serial ATA functionality is transparent to the
operating system. The Serial ATA controller can operate in both legacy and native
modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14
and 15). In Native mode, standard PCI resource steering is used. Native mode is the
preferred mode for configurations using the Windows XP and Windows 2000
operating systems.
LS-120 Support
LS-120 MB Diskette technology enables you to store 120MB of data on a single, 3.5”
removable diskette. LS-120 technology is backward (both read and write)
compatible with 1.44MB and 720KB DOS-formatted diskette and is supported by
Windows 95 and Windows NT operating system.
The VIG390S board allows connection of an LS-120 compatible drive and a standard
3½” floppy drive. The LS-120 drive can be configured as a boot device before a
floppy drive, if selected in the BIOS setup utility.
Note:If you connect an LS-120 drive to an IDE connector and configure it as the “A”
drive and configure a standard 3.5” floppy as “B” drive, the standard floppy must be
connected to the floppy drive cable’s “A” connector (the connector at the end of the
cable).