DFI NS30-SC/SL User manual

NS30-SC/SL
NS35-SC/SL
Rev. A+
System Board
User’s Manual
56000204

Copyright
This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior
written permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any
particular purpose. The user will assume the entire risk of the use or
the results of the use of this document. Further, the manufacturer
reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or
entity of such revisions or changes.
© 00 . All Rights Reserved.
Trademarks
Windows® 98, Windows® 98 SE, Windows® ME, Windows® 000,
Windows NT® 4.0 and Windows® XP are registered trademarks of
Microsoft Corporation. Intel® and Pentium® 4 are registered
trademarks of Intel Corporation. SiS® is a registered trademark of
Silicon Integrated Systems Corporation. Award is a registered
trademark of Award Software, Inc. Other trademarks and registered
trademarks of products appearing in this manual are the properties
of their respective holders.
Caution
To avoid damage to the system:
• Use the correct AC input voltage range.
To reduce the risk of electric shock:
• Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

Battery:
• Danger of explosion if battery incorrectly replaced.
• Replace only with the same or equivalent type recommend by
the manufacturer.
• Dispose of used batteries according to the battery
manufacturer’s instructions.
Joystick or MIDI port:
• Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
• Consult the dealer or an experienced radio TV technician for
help.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
. Shielded interface cables must be used in order to comply with
the emission limits.

Notice
This user’s manual contains detailed information about the system
board. If, in some cases, some information doesn’t match those
shown in the multilingual manual, the multilingual manual should
always be regarded as the most updated version. The multilingual
manual is included in the system board package.
To view the user’s manual, insert the CD into a CD-ROM drive. The
autorun screen (Main Board Utility CD) will appear. Click “User’s
Manual”.
System Board
This user’s manual is for the NS30-SC, NS30-SL, NS35-SC and
NS35-SL system boards. The differences between these boards are
shown below.
VGA por t
Realtek RTL8100
RJ45 LAN por t



NS35-SLNS35-SCNS30-SL









NS30-SC

Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications..................................................................................
1. Package Checklist.........................................................................................................
Chapter 2 - Hardware Installation
.1 System Board Layout ..........................................................................................
. System Memory...........................................................................................................
.3 Jumper Settings for Clearing CMOS Data........................................
.4 Jumper Settings for Wake-On-PS/ KB/Mouse.............................
.5 Jumper Settings for Wake-On-USB Keyboard................................
.6 Por ts and Connectors...........................................................................................
Chapter 3 - Award BIOS Setup Utility
3.1 The Basic Input/Output System.....................................................................
3.1.1 Standard CMOS Features.............................................................
3.1. Advanced BIOS Features..............................................................
3.1.3 Advanced Chipset Features ......................................................
3.1.4 Integrated Peripherals.........................................................................
3.1.5 Power Management Setup............................................................
3.1.6 PnP/PCI Configurations....................................................................
3.1.7 PC Health Status...................................................................................
3.1.8 Frequency/Voltage Control............................................................
3.1.9 Load Fail-Safe Defaults.....................................................................
3.1.10 Load Optimized Defaults..............................................................
3.1.11 Set Supervisor Password...............................................................
3.1.1 Set User Password..............................................................................
3.1.13 Save & Exit Setup.................................................................................
3.1.14 Exit Without Saving..............................................................................
3. Updating the BIOS.....................................................................................................
7
14
5
5
56
60
6
68
73
75
77
79
79
80
80
81
81
81
15
19
1
3
4
6

Introduction
1
6
9
9
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface.....................................................................
4. Hardware Monitor........................................................................................................
4.3 SiS AGP Driver.................................................................................................................
4.4 Realtek Audio Drivers..............................................................................................
4.5 SiS VGA Drivers.............................................................................................................
4.6 Realtek LAN Drivers for Windows.............................................................
4.7 Microsoft DirectX 8.0 Driver.............................................................................
4.8 Drivers and Utilities Installation Notes.....................................................
Appendi A - Using the Suspend to RAM
Function
A.1 Using the Suspend to RAM Function........................................................
Appendi B - System Error Messages
B.1 POST Beep.......................................................................................................................
B. Error Messages..............................................................................................................
Appendi C - Troubleshooting
C.1 Troubleshooting Checklist....................................................................................
8
85
85
86
86
86
86
87
88
94

1
Introduction
7
1.1 Features and Specifications
1.1.1 Features
Chipset
•SiS
® 645/961 (NS30-SC/SL)
•SiS
® 650/961 (NS35-SC/SL)
Processor
The system board is equipped with Socket 478 for installing a
Pentium® 4 processor.
• Intel® Pentium® 4 processor (478-pin)
• Supports up to GHz CPU speed
• 400MHz system data bus
System Memory
• Two 184-pin DDR DIMM sockets
• NS30-SC/SL: suppor ts 4 banks up to GB using PC1600
(DDR 00), PC 100 (DDR 66) or PC 700
(DDR333) unbuffered DDR SDRAM DIMM, .5V
type
NS35-SC/SL: supports 4 banks up to GB using PC1600
(DDR 00) or PC 100 (DDR 66) unbuffered
DDR SDRAM DIMM, .5V type
• 16Mb, 64Mb, 1 8Mb, 56Mb and 51 Mb SDRAM technology
with page size from KB up to 16KB
Chapter 1 - Introduction

Introduction
1
8
Expansion Slots
The system board is equipped with 1 AGP slot, 3 PCI slots (1
shared with CNR slot) and 1 CNR slot.
AGP is an interface designed to support high performance 3D
graphics cards. It utilizes a dedicated pipeline to access system
memory for texturing, z-buffering and alpha blending. The universal
AGP slot supports AGP x with up to 533MB/sec. bandwidth and
AGP 4x with up to 1066MB/sec. bandwidth for 3D graphics
applications. AGP in this system board will deliver faster and better
graphics to your PC.
CNR (Communication and Networking Riser) is an interface that can
support multi-channel audio and V.90 analog modem.
Onboard Graphics Feat res (NS35-SC and NS35-SL only)
•SiS
® 315 VGA solution integrated in SiS® 650 chip
• Integrated Real 56TM D/3D graphics accelerator
- pixel rendering pipelines and 4 texture 3D graphic engine
- Ultra-AGPIITM technology delivering AGP 8x equalent GB/s
bandwidth
- Advanced H/W acceleration for DVD playback
- Shared memory size up to 64MB
Onboard A dio Feat res
• AC'97 . extension compliant codec
• Supports Microsoft® DirectSound/DirectSound 3D
• AC’97 supported with full duplex, independent sample rate
converter for audio recording and playback
Onboard LAN Feat res (NS30-SL and NS35-SL only)
• Uses Realtek RTL8100 fast ethernet controller
• Integrated IEEE 80 .3 10BASE-T and 100BASE-TX compatible
PHY
• 3 -bit PCI master interface
• Integrated power management functions
• Full duplex support at both 10 and 100 Mbps

1
Introduction
9
• Supports IEEE 80 .3u auto-negotiation
• Supports wire for management
ATX Do ble Deck Ports (PC 99 color-coded connectors)
• Two USB ports
• One RJ45 LAN port (NS30-SL and NS35-SL only)
• One NS16C550A-compatible DB-9 serial port (NS35-SC and
NS35-SL only) or two DB-9 serial ports (NS30-SC and NS30-
SL only)
• One DB-15 VGA port (NS35-SC and NS35-SL only)
• One DB- 5 parallel port
• One mini-DIN-6 PS/ mouse port
• One mini-DIN-6 PS/ keyboard port
• One game/MIDI port
• Three audio jacks: line-out, line-in and mic-in
Connectors
• Two connectors for 4 additional external USB ports
• One 9-pin connector for 1 external serial port (NS35-SC and
NS35-SL only)
• One connector for external line-out and mic-in jacks
• Two internal audio connectors (AUX-in and CD-in)
• One connector for IrDA interface
• Two IDE connectors
• One floppy drive interface supports up to two .88MB floppy
drives
• Two ATX power supply connectors
• One Wake-On-LAN connector
• One Wake-On-Ring connector
• CPU fan and system fan connectors
PCI B s Master IDE Controller
• Two PCI IDE interfaces support up to four IDE devices
• Supports ATA/33, ATA/66 and ATA/100 hard drives
• PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
• Bus mastering reduces CPU utilization during disk transfer
• Supports ATAPI CD-ROM, LS-1 0 and ZIP

Introduction
1
10
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. It
supports peripheral devices that meet the IrDA or ASKIR standard.
USB Ports
The system board supports 6 USB ports. Two onboard USB ports
are located at the ATX double deck ports of the board. The J 5
and J 6 connectors on the system board allow you to connect 4
more optional USB ports. These optional USB ports, which are
mounted on a card-edge bracket, will be provided as an option.
USB allows data exchange between your computer and a wide
range of simultaneously accessible external Plug and Play peripherals.
BIOS
• Award BIOS, Windows® 98/ 000/ME/XP Plug and Play
compatible
• Supports SCSI sequential boot-up
• Flash EPROM for easy BIOS upgrades
• Supports DMI .0 function
• Mbit flash memory
Desktop Management Interface (DMI)
The system board comes with a DMI .0 built into the BIOS. The
DMI utility in the BIOS automatically records various information
about your system configuration and stores these information in the
DMI pool, which is a part of the system board's Plug and Play
BIOS. DMI, along with the appropriately networked software, is
designed to make inventory, maintenance and troubleshooting of
computer systems easier. Refer to chapter 4 for instructions on using
the DMI utility.

1
Introduction
11
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following “system
health” conditions.
• Monitors CPU/system temperature and overheat alarm
• Monitors CPU/3.3V/±5V/±1 V/VBAT/5VSB voltages and failure
alarm
• Monitors CPU/system fan speed and failure alarm
• Automatic system fan on/off control
• Read back capability that displays temperature, voltage and fan
speed
Refer to the “PC Health Status” section in chapter 3 and the
“Hardware Monitor” section in chapter 4 for more information.
1.1.3 Intelligence
CPU Temperat re Protection
The CPU Temperature Protection function has the capability of
monitoring the CPU’s temperature during system boot-up. Once it
has detected that the CPU’s temperature exceeded the CPU
temperature limit defined in the BIOS, the system will automatically
power-off after 5 warning beeps. Refer to “CPU Temp. Prot. Function
and CPU Temp. Prot. Alarm” in the PC Health Status section in
chapter 3 for more information.
A tomatic System Fan Off
The system fan will automatically turn off once the system enters the
Suspend mode.
D al F nction Power B tton
Depending on the setting in the “Soft-Off By PWRBTN” field of the
Power Management Setup, this switch will allow the system to enter
the Soft-Off or Suspend mode.

Introduction
1
12
Wake-On-Ring
This feature allows the system that is in the Suspend mode or Soft
Power Off mode to wake-up/power-on to respond to calls coming
through an internal or external modem. Refer to “Wake-On-Ring
Connector” in chapter and “Ring Power Up Control” (“PM Wake
Up Events” field) in the Power Management Setup section in chapter
3 for more information.
Important:
If you are using a modem add-in card, the 5VSB power source
of your power supply must support ≥ 720mA
Wake-On-LAN
The Wake-On-LAN function allows the network to remotely wake
up a Soft Power Down (Soft-Off) PC. Your LAN card must support
the remote wakeup function. Refer to “Wake-On-LAN Connector” in
chapter and “Ring Power Up Control” (“PM Wake Up Events”
field) in the Power Management Setup section in chapter 3 for more
information.
Important:
The 5VSB power source of your power supply must support
≥ 720mA
Wake-On-PS/2 Keyboard/Mo se
This function allows you to use the PS/ keyboard or PS;/ mouse
to wake up a system from the S3/S4/S5 state. Refer to “Jumper
Settings for Wake-On-PS/ Keyboard/Mouse” in chapter ; and “PS
Mouse Power Up Control” and “KB Power On Password” (“PM
Wake Up Events” field) in the Power Management Setup section in
chapter 3 for more information.
Important:
• If you forgot the password, you must power-off the system,
unplug the power cord and clear the CMOS data Follow
the steps in the “Jumper Settings for Clearing CMOS Data”
section in chapter 2
• The 5VSB power source of your power supply must
support ≥ 720mA

1
Introduction
13
Wake-On-USB Keyboard
The Wake-On-USB Keyboard function allows you to use a USB
keyboard to wake up a system from the S3/S4/S5 state. Refer to
“Jumper Settings for Wake-On-USB Keyboard” in chapter and
“USB Port Wake Up Control” (“PM Wake Up Events” field) in the
Power Management Setup section in chapter 3 for more information.
Important:
• If you are using the Wake-On-USB Keyboard function for 2
USB ports, the 5VSB power source of your power supply
must support ≥ 1 5A
• If you are using the Wake-On-USB Keyboard function for 4
to 6 USB ports, the 5VSB power source of your power
supply must support ≥ 2A
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set date and time. Refer to and
“Power Up By Alarm” (“PM Wake Up Events” field) in the Power
Management Setup section in chapter 3 for more information.
ACPI STR
The system board is designed to meet the ACPI (Advanced
Configuration and Power Interface) specification. ACPI has energy
saving features that enables PCs to implement Power Management
and Plug-and-Play with operating systems that support OS Direct
Power Management. Currently, only Windows® 98/ 000/ME/XP
supports the ACPI function. ACPI when enabled in the Power
Management Setup will allow you to use the Suspend to RAM
function.
With the Suspend to RAM function enabled, you can power-off the
system at once by pressing the power button or selecting “Standby”
when you shut down Windows® 98/ 000/ME/XP without having to
go through the sometimes tiresome process of closing files,
applications and operating system. This is because the system is
capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it
powers-off. The operating session will resume exactly where you left

Introduction
1
14
off the next time you power-on the system. Refer to “Using the
Suspend to RAM Function” in appendix A for more information.
Important:
The 5VSB power source of your power supply must support
≥ 1A
AC Power Fail re Recovery
When power returns after an AC power failure, you may choose to
either power-on the system manually, let the system power-on
automatically or return to the state where you left off before power
failure occurs. Refer to “PWR Lost Resume State” in the Power
Management Setup section in chapter 3 for more information.
Vir s Protection
Most viruses today destroy data stored in hard drives. The system
board is designed to protect the boot sector and partition table of
your hard disk drive.
1.2 Package Checklist
The system board package contains the following items:
The system board
A user’s manual
One card-edge bracket with a serial port (NS35-SC and
NS35-SL only)
One IDE cable for ATA/33, ATA/66 or ATA/100 IDE drives
One 34-pin floppy disk drive cable
One “Main Board Utility” CD
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

2
Hardware Installation
15
2.1 System Board Layout
Chapter 2 - Hardware Installation
NS30-SC
(Uses SiS® 645/961 chipset)
Clear CMOS (JP5)
FDD (J22)
SiS
961
J2
KB
Mouse
COM 1 (J4)
Parallel (J5)
COM 2 (CN1)
Game/MIDI (J13)
Line
out
(J9)
Line
in
(J11)
Mic
in
(J14)
Wake-On-USB KB
forUSB1&2(JP2)
ATX Power
CD-in
(J16)
AUX-in
(J15)
21
10 9
Front audio
(J10)
AC’97
Wake-On-Ring
(J19)
3.3VSB standby
for PCI (JP6) PCI standby
power LED
J3
15
11 15
USB3&4(J25)
BIOS
CPU fan
(J1)
USB 1
(Black)
Mouse
(Green)
KB
(Purple) COM 1
Parallel
(Burgundy) Game/MIDI
(Gold)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
(Teal/Turquoise)
Square denotes pin 1
DIMM
standby
power
LED
USB 1
USB 2
PCI 1 Slot
PCI 2 Slot
PCI 3 Slot
CNR Slot
Socket 478
AGP Slot
+12V power
(ATXP1)
34
12
I/O
chip
15
11 15
System fan
(J12)
IrDA (J20)
Wake-On-LAN (J23)
Wake-On-PS/2 KB/Mouse (JP1)
USB5&6(J26)
J8
PWR-LED
HD-LED
J27
ATX-SW G-LED
G-SW
SPEAKER
Battery
Wake-On-USB KB
forUSB3to6(JP3)
RESET
COM 2
USB 2
(Black)
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
SiS
645
Primary IDE (J18)
Seconary IDE (J17)

2
16
Hardware Installation
Clear CMOS (JP5)
FDD (J22)
SiS
961
J2
KB
Mouse
LAN
COM 1 (J4)
Parallel (J5)
COM 2 (CN1)
Game/MIDI (J13)
Line
out
(J9)
Line
in
(J11)
Mic
in
(J14)
Wake-On-USB KB
forUSB1&2(JP2)
ATX Power
CD-in
(J16)
AUX-in
(J15)
21
10 9
Front audio
(J10)
AC’97
Wake-On-Ring
(J19)
3.3VSB standby
for PCI (JP6) PCI standby
power LED
J3
15
11 15
USB3&4(J25)
BIOS
CPU fan
(J1)
USB 1, 2
(Black)
Mouse
(Green)
KB
(Purple) COM 1
Parallel
(Burgundy) Game/MIDI
(Gold)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
RJ45
LAN
(Teal/Turquoise)
Square denotes pin 1
DIMM
standby
power
LED
USB 1
USB 2
PCI 1 Slot
PCI 2 Slot
PCI 3 Slot
CNR Slot
Socket 478
AGP Slot
+12V power
(ATXP1)
34
12
Realtek
RTL8100
I/O
chip
15
11 15
System fan
(J12)
IrDA (J20)
Wake-On-LAN (J23)
Wake-On-PS/2 KB/Mouse (JP1)
USB5&6(J26)
J8
PWR-LED
HD-LED
J27
ATX-SW G-LED
G-SW
SPEAKER
Battery
Wake-On-USB KB
forUSB3to6(JP3)
RESET
COM 2
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
SiS
645
Primary IDE (J18)
Seconary IDE (J17)
NS30-SL
(Uses SiS® 645/961 chipset; supports onboard LAN)

2
Hardware Installation
17
Clear CMOS (JP5)
FDD (J22)
SiS
650
SiS
961
J2
KB
Mouse
COM 1 (J4)
Parallel (J5)
VGA (CN1)
Game/MIDI (J13)
Line
out
(J9)
Line
in
(J11)
Mic
in
(J14)
Wake-On-USB KB
forUSB1&2(JP2)
ATX Power
CD-in
(J16)
AUX-in
(J15)
21
10 9
Front audio
(J10)
AC’97
Wake-On-Ring
(J19)
3.3VSB standby
for PCI (JP6) PCI standby
power LED
J3
15
11 15
USB3&4(J25)
BIOS
CPU fan
(J1)
USB 1
(Black)
Mouse
(Green)
KB
(Purple)
COM 1
Parallel
(Burgundy) Game/MIDI
(Gold)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
(Teal/Turquoise)
Square denotes pin 1
VGA
(Blue)
DIMM
standby
power
LED
USB 1
USB 2
PCI 1 Slot
PCI 2 Slot
PCI 3 Slot
CNR Slot
Socket 478
AGP Slot
10 9
21
COM 2 (J6)
+12V power
(ATXP1)
34
12
I/O
chip
15
11 15
System fan
(J12)
IrDA (J20)
Wake-On-LAN (J23)
Wake-On-PS/2 KB/Mouse (JP1)
USB5&6(J26)
J8
PWR-LED
HD-LED
J27
ATX-SW G-LED
G-SW
SPEAKER
Battery
Wake-On-USB KB
for USB 3 to 6 (JP3)
RESET
USB 2
(Black)
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
Primary IDE (J18)
Seconary IDE (J17)
NS35-SC
(Uses SiS® 650/961 chipset)

2
18
Hardware Installation
Note:
The i ustrations on the fo owing pages are based on the NS35-SL
system board, which is the board that supports onboard VGA and
onboard LAN.
Clear CMOS (JP5)
FDD (J22)
SiS
650
SiS
961
J2
KB
Mouse
LAN
COM 1 (J4)
Parallel (J5)
VGA (CN1)
Game/MIDI (J13)
Line
out
(J9)
Line
in
(J11)
Mic
in
(J14)
Wake-On-USB KB
forUSB1&2(JP2)
ATX Power
CD-in
(J16)
AUX-in
(J15)
21
10 9
Front audio
(J10)
AC’97
Wake-On-Ring
(J19)
3.3VSB standby
for PCI (JP6) PCI standby
power LED
J3
15
11 15
USB3&4(J25)
BIOS
CPU fan
(J1)
USB 1, 2
(Black)
Mouse
(Green)
KB
(Purple)
COM 1
Parallel
(Burgundy) Game/MIDI
(Gold)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
RJ45
LAN
(Teal/Turquoise)
Square denotes pin 1
VGA
(Blue)
DIMM
standby
power
LED
USB 1
USB 2
PCI1Slot
PCI2Slot
PCI3Slot
CNR Slot
Socket 478
AGP Slot
10 9
21
COM 2 (J6)
+12V power
(ATXP1)
34
12
Realtek
RTL8100
I/O
chip
15
11 15
System fan
(J12)
IrDA (J20)
Wake-On-LAN (J23)
Wake-On-PS/2 KB/Mouse (JP1)
USB5&6(J26)
J8
PWR-LED
HD-LED
J27
ATX-SW G-LED
G-SW
SPEAKER
Battery
Wake-On-USB KB
forUSB3to6(JP3)
RESET
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
Primary IDE (J18)
Seconary IDE (J17)
NS35-SL
(Uses SiS® 650/961 chipset; supports onboard LAN)

2
Hardware Installation
19
2.2 System Memory
Warning:
E ectrostatic discharge (ESD) can damage your system board,
processor, disk drives, add-in boards, and other components. Perform
the upgrade instruction procedures described at an ESD workstation
on y. If such a station is not avai ab e, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching it to a
meta part of the system chassis. If a wrist strap is unavai ab e,
estab ish and maintain contact with the system chassis throughout
any procedures requiring ESD protection.
The system board is equipped with two 184-pin DDR SDRAM
DIMM (Dual In-line Memory Module sockets that suppor t 2.5V
DDR SDRAM DIMM. Double Data Rate SDRAM (DDR SDRAM is
a type of SDRAM that doubles the data rate through reading and
writing at both the rising and falling edge of each clock. This
effectively doubles the speed of operation therefore doubling the
speed of data transfer.
Refer to chapter 1 for the type of memory supported by the
system board.
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2

2
20
Hardware Installation
2.2.1 Installing the DIM Module
A DIM module simply snaps into a DIMM socket on the system
board. Pin 1 of the DIM module must correspond with Pin 1 of the
socket.
1. Pull the “tabs” which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the “notch” in the
module aligned with the “key” on the socket.
3. Seat the module vertically into the socket. Make sure it is
completely seated. The tabs will hold the DIMM in place.
Pin 1
Notch
Key
Tab Tab