SUPER MICRO Computer X6DHT-G User Manual

SUPER

X6DHT-G

®

USER’S MANUAL

Revision 1.1a

The information in this User’s Manual has been carefully reviewed and is believed to be
accurate. The vendor assumes no responsibility for any inaccuracies that may be contained
in this document, makes no commitment to update or to keep current the information in
this manual, or to notify any person or organization of the updates.

Please Note: For the most up-to-date version of this manual, please see our web site at
www.supermicro.com.

SUPER MICRO COMPUTER, INC. ("Supermicro") reserves the right to make changes to
the product described in this manual at any time and without notice. This product, including
software, if any, and documentation may not, in whole or in part, be copied, photocopied,
reproduced, translated or reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPER MICRO COMPUTER, INC. BE LIABLE FOR DIRECT,
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING FROM
THE USE OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER MICRO
COMPUTER, INC. SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR
DATA STORED OR USED WITH THE PRODUCT,INCLUDING THE COSTS OF
REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of
Santa Clara County in the State of California, USA. The State of California, County of
Santa Clara shall be the exclusive venue for the resolution of any such disputes.
Supermicro's total liability for all claims will not exceed the price paid for the hardware
product.

*

California Best Management Practices Regulations for Perchlorate Materials: This Perchlo­rate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells.
"Perchlorate Material-special handling may apply. See WWW.dtsc.ca.gov/hazardouswaste/
perchlorate".

WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to the
State of California to cause birth defects and other repro­ductive harm.

FCC Statement: This equipment has been tested and found to comply with the limits for a
Class A 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 commercial environment. This equipment generates, uses, and can radiate radio fre­quency energy and, if not installed and used in accordance with the manufacturer’s instruc­tion manual, may cause harmful interference with radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case you
will be required to correct the interference at your own expense.

Revision Number: Rev. 1.1a
Release Date: Sept. 28, 2007
Unless you request and receive written permission from SUPER MICRO COMPUTER,

INC., you may not copy any part of this document.
Information in this document is subject to change without notice. Other products and

companies referred to herein are trademarks or registered trademarks of their respective
companies or mark holders.

Copyright © 2007 by SUPER MICRO COMPUTER INC.
All rights reserved.
Printed in the United States of America

Preface
About This Manual

This manual is written for system integrators, PC technicians and
knowledgeable PC users. It provides information for the installation and use
of the X6DHT-G motherboard. The X6DHT-G supports single or dual Intel
EM64T (NoconaTM) processors at a 800 MHz front side bus. Based upon
Intel's NetBurst microarchitecture with EM64T support, the EM64T (Nocona)
processor supports the IA-32 software and includes features found in the
XeonTM processor such as Hyper Pipelined Technology, allowing the pro­cessor to operate at much higher core frequencies. Packaged in a 604-pin
Flip Chip Micro Pin Grid Array(FC-mPGA4) platform in a Zero Insertion Force
(ZIF) socket (mPGA 604), the EM64T (Nocona) Processor (800 MHz) sup­ports Hyper-Threading Technology and is ideal for high performance work­station and server environments with up to two processors on one system
bus. This product is intended to be professionally installed.

Manual Organization

Chapter 1 begins with a checklist of what should be included in your

mainboard box, describes the features, specifications and performance of
the motherboard and provides detailed information about the chipset.

Preface

®

Chapter 2 begins with instructions on handling static-sensitive devices.
Read this chapter when you want to install the processor and DIMM memory
modules and when mounting the mainboard in the chassis. Also refer to
this chapter to connect the floppy and hard disk drives, SCSI drives, the IDE
interfaces, the parallel and serial ports, the keyboard and mouse, the power
supply and various control panel buttons and indicators.

If you encounter any problems, see Chapter 3, which describes trouble­shooting procedures for the video, the memory and the setup configuration
stored in the CMOS. For quick reference, a general FAQ [Frequently Asked
Questions] section is provided.

Chapter 4 includes an introduction to BIOS and provides detailed informa­tion on running the CMOS Setup utility.

Appendix A provides BIOS POST codes.
Appendix B provides software installation instructions.

iii

X6DHT-G User's Manual

Table of Contents

Preface

About This Manual ...................................................................................................... iii

Manual Organization ................................................................................................... iii

Chapter 1: Introduction

1-1 Overview ......................................................................................................... 1-1

Checklist .................................................................................................... 1-1

Contacting Supermicro ............................................................................ 1-2

X6DHT-G Image ...................................................................... 1-3

X6DHT-G Layout .................................................................... 1- 4

X6DHT-G Quick Reference ................................................... 1-5

Motherboard Features ............................................................................. 1-6

Intel E7520 (Lindenhurst) Chipset: System Block Diagram .............. 1-8

1-2 Chipset Overview........................................................................................... 1-9

1-3 Special Features ........................................................................................... 1-10

1-4 PC Health Monitoring.................................................................................... 1-10

1-5 ACPI Features ............................................................................................... 1-11

1-6 Power Supply ............................................................................................... 1-13

1-7 Super I/O ......................................................................................................... 1-14

Chapter 2: Installation

2-1 Static-Sensitive Devices ............................................................................... 2-1

Precautions............................................................................................... 2-1

Unpacking.................................................................................................. 2-1

2-2 Xeon EM64T Processor and Heatsink Installation .................................... 2-2

2-3 Installing DIMMs............................................................................................... 2-6

2-4 I/O Ports/Control Panel Connectors ............................................................. 2-7

2-5 Connecting Cables .......................................................................................... 2-9

ATX Power Connector ............................................................................ 2-9

Processor Power Connector ................................................................. 2-9

NMI Button ................................................................................................ 2-10

Power LED ............................................................................................... 2-10

HDD LED .................................................................................................. 2-11

NIC1/NIC2 LED ........................................................................................ 2-11

Overheat/Fan Fail LED .......................................................................... 2-12

Power Fail LED ....................................................................................... 2-12

Reset Button ........................................................................................... 2-13

Power Button ......................................................................................... 2-13

iv

Table of Contents

Chassis Intrusion ................................................................................... 2-14

Serial Ports ............................................................................................. 2- 14

Universal Serial Bus (USB0/1) ............................................................ 2 -15

Extra Universal Serial Bus Headers (USB2/3) ................................. 2- 15

GLAN (Ethernet Ports) ........................................................................... 2-16

ATX PS/2 Keyboard and Mouse Ports ................................................2-16

Fan Headers ........................................................................................... 2-17

Pow er LE D/Spe aker Heade r ................................................................ 2 -17

Wake-On-Ring ......................................................................................... 2-18

Wake-On-LAN ......................................................................................... 2-18

SMB ........................................................................................................... 2-19

SMB Power .............................................................................................. 2-19

SATA SMB Power Connection ............................................................. 2-20

SATA Activity Output LED .................................................................... 2-20

Overheat LED .......................................................................................... 2-21

Power Supply Failure LED .................................................................... 2-21

2-6 Jumper Settings ............................................................................................ 2-2 2

Explanation of Jumpers ........................................................................ 2 -22

GLAN Enable/Disable............................................................................. 2-2 2

CMOS Clear............................................................................................. 2-2 3

Watch Dog Enable/Disable .................................................................... 2-23

VGA Enable/Disable ............................................................................... 2-24

Alarm Reset ............................................................................................. 2-24

3rd PWR Fault Detect ............................................................................ 2-25

SATA Controller Enable/Disable ........................................................... 2-25

2-7 Onboard Indicators ...................................................................................... 2- 26

GLAN LEDs.............................................................................................. 2-26

SATA Presence LEDs ............................................................................ 2-27

SATA Activity LEDs ............................................................................... 2-27

2-8 Parallel Port, Floppy, IPMI 2.0 Socketand Hard Disk Drive Connection 2-28

Parallel Port ............................................................................................. 2-28

Floppy Connector ................................................................................... 2-29

IPMI 2.0 Socket....................................................................................... 2- 29

IDE Connectors ...................................................................................... 2-30

Chapter 3: Troubleshooting

3-1 Troubleshooting Procedures ........................................................................ 3-1

Before Power On .................................................................................... 3-1

No Power .................................................................................................. 3-1

v

X6DHT-G User's Manual

No Video ................................................................................................... 3-1

Memory Errors .......................................................................................... 3-2

Losing the System’s Setup Configuration ........................................... 3-2

3-2 Technical Support Procedures .................................................................... 3-2

3-3 Frequently Asked Questions ........................................................................ 3-3

3-4 Returning Merchandise for Service ............................................................ 3-4

Chapter 4: BIOS

4-1 Introduction....................................................................................................... 4-1

4-2 Running Setup.................................................................................................. 4-2

4-3 Main BIOS Setup.............................................................................................. 4-2

4-4 Advanced Setup.............................................................................................. 4-6

4-5 Security Setup ............................................................................................... 4-18

4-6 Boot Setup ...................................................................................................... 4-20

4-7 Exit ................................................................................................................... 4-21

Appendices:

Appendix A: BIOS POST Messages ..................................................................... A-1

Appendix B: BIOS POST Codes .............................................................................B-1

Appendix C: Installing Software Drivers and the Operating System ..............C-1

vi

1-1 Overview

Chapter 1: Introduction

Chapter 1

Introduction

Checklist

Congratulations on purchasing your computer motherboard from an ac­knowledged leader in the industry. Supermicro boards are designed with
the utmost attention to detail to provide you with the highest standards in
quality and performance. Check that the following items have all been in­cluded with your motherboard. If anything listed here is damaged or miss­ing, contact your retailer. All are included in the Retail Box.

One (1) Supermicro Mainboard

One (1) ribbon cable for IDE devices (CBL-036)

One (1) floppy ribbon cable (CBL-022)

One (1) COM port cable (CBL-010)

One (1) 4-port USB cable (CBL-083)

Eight (8) SATA cables (CBL-044)

One (1) I/O backpanel shield (CSE-PT7)

One (1) Supermicro CD containing drivers and utilities (CDR-INTC)

One (1) User's/BIOS Manual

Introduction

1-1

X6DHT-G User's Manual

Contacting Supermicro

Introduction

Headquarters

Address: Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [e-mail] (General Information)

[e-mail] (Technical Support)
Web Site: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [e-mail] (General Information)

[e-mail] (Technical Support)

[e-mail] (Customer Support)

Asia-Pacific

Address: Super Micro, Taiwan

4F, No. 232-1 Liancheng Road

Chung-Ho 235, Taipei Hsien, Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Web Site: www.supermicro.com.tw
Technical Support:
Email: [e-mail]
Tel: [phone], ext.132 or 139

1-2

Chapter 1: Introduction

Figure 1-1. X6DHT-G Image

Introduction

1-3

Introduction

X6DHT-G User's Manual

Figure 1-2. X6DHT-G Motherboard Layout

(not drawn to scale)

KB/
Mouse

USB
0/1

COM1

Parrallel

Port

JLAN1

VGA

LAN1

LAN2

GLAN
CTLR

GLAN
CTLR

JPL1

JPL2

RAGE­XL

Buzzer

JWD

Notes:

DS9
DS1

SATA0

DS10
DS2

SATA1

IPMI

12V 8-pin
PWR

CPU1

CPU2

JPS1

SATA

Controller

Marvell

DS11

DS3

SATA2

DS12
DS4

SATA3

DS13
DS5

SATA4

DS14

DS6

SATA5

JWOR

OH
LED

Floppy

DS15
DS7

SATA6

DS16

DS8

SATA7

IDE2

M-SATA

JL1

2

PSF

Fan1

C
I

J3P

JF1

Fan2

Fan3

IDE1

M-SA TA

Fan4

Fan6

Bank1

Bank2

Bank3

Bank4

Slot6

Slot5

Slot4

Slot3

Slot2

Slot1

JPG1

Fan5

PCI-E X8

PCI-E X8

PCI-X 3 133 MHz

PCI-X 100 MHz/ZCR

PCI-X100 MHz

PCI-33 MHz

JD1

JPW1

12V 4-Pin
PWR

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

DIMM 3A

DIMM 3B
DIMM 4A

DIMM 4B

UPER X6DHT-G

S

COM2

24-Pin

®

ATX PWR

E7520
Lindenhurst
North
Bridge

S I/O

Battery

JBT1

SMB

BIOS

Fan8

USB2/3

WOL

SMBus
PWR

PXH

6300ESB

SATA0

ICH

Intel

Fan7

SATA1

1. Jumpers not indicated are for testing only.

2. See Chapter 2 for detailed information on jumpers, I/O ports and
JF1 front panel connections.

3. " " indicates the location of Pin 1.

4. All drawings and pictures shown in this manual were based upon
the latest PCB Revision available at the time of publishing of this
manual. The motherboard you've received may or may not look
exactly the same as the graphics shown in the manual.

JAR

FP Control

Act LED

1-4

Chapter 1: Introduction

Quick Reference (X6DHT-G)

(*Please refer to Chapter 2 for pin definitions and detailed
information.)

Jumper Description Default Setting

J3P 3rd PW Supply Detect Off (Disabled)
JAR Alarm Reset Enable Off (Normal)
JBT1 CMOS Clear See Chapter 2
JPL1/JPL2 GLAN1/GLAN2 Enable Pins 1-2 (Enabled)
JPG1 VGA Enable Pins 1-2 (Enabled)
JPS1 Marvell SATA Controller Enable Pins 1-2 (Enabled)
JWD Watch Dog Enable Pins 1-2 (Reset)

Connector Description

ATX PWR (JPW1) Primary 24-Pin ATX PWR Connector
CPU PWR (J1D1) 12V 8-Pin CPU PWR Connector
Aux. PWR (J38) +12V 4-pin System PWR Connector
COM1/COM2 (J14/J15) COM1/COM2 Serial Port Connector/Header
DS1-DS8 Marvell SATA PRE_LED Indicators (SATA0-7)
DS9-DS16 Marvell SATA ACT_LED Indicators (SATA0-7)
DIMM#1A-DIMM#4B DDR DIMM Memory (RAM) Slots
FAN 1-8 CPU/Chassis/Overheat Fan Headers
Floppy (J12) Floppy Disk Drive Connector
IDE1/IDE2 (J5/J6) IDE#1/IDE#2 Hard Disk Drive Connectors
IPMI (JIPMI1) IPMI 2.0 Socket
JD1 PWR LED(pins1-3)/SpeakerHeader(pins 4-7)
JF1 Front Control Panel Connector
JL1 Chassis Intrusion Header
JWOR Wake-on-Ring Header
LAN 1/2 G-bit Ethernet Ports 1/2
OH LED (JOH) Overheat LED
KB/MS (J33) PS2 Keyboard/Mouse Connector
M-SATA I2C (JS10) Marvell Serial ATA Power SMB (I2C)
M-SATA Act. LED(JS9) Marvell Serial ATA Activity Out LED Indicator
SMB (J11) System Management Bus
Parallel Parallel (Printer) Port
PSF Power Supply Failure LED Header
I-SATA 0/1 Intel Serial ATA1/2 Ports
M-SATA0-7 Marvell SATA Ports 0-7
USB 0/1 Back Panel USB0/USB1 Headers
USB 2/3 Front Panel Universal Serial Bus Ports 2/3
VGA Video Connector
WOL Wake-on-Line Header

Introduction

1-5

X6DHT-G User's Manual

Motherboard Features

Introduction

CPU

• Single or dual Intel® XeonTM EM64T processors at 800 MHz front side

Memory

• Eight 184-pin DIMM sockets supporting up to 16 GB (DDR 333) or 32

Chipset

• Intel E7520 Lindenhurst chipset

Expansion Slots

• Two x8 PCI-E slots

• Three 64-bit PCI-X (3.3V) slots (*One PCI-X-133 MHz slot, One PCI-X-

• One 32-bit (5V) 33MHz PCI

BIOS

• 8 Mb Phoenix® Flash ROM

• APM 1.2, DMI 2.1, ACPI 2.0, Plug and Play (PnP), SMBIOS 2.3

PC Health Monitoring

• Onboard voltage monitors for CPU cores, chipset voltage, 3.3V, +5V,

• Fan status monitor with firmware/software on/off control

• CPU/chassis temperature monitors

• Environmental temperature monitor and control

• CPU fan auto-off in sleep mode

• CPU slow-down on temperature overheat

• CPU thermal trip support for processor protection, +5V standby alert

• Power-up mode control for recovery from AC power loss

• Auto-switching voltage regulator for CPU core

• System overheat LED and control

• Chassis intrusion detection

• System resource alert

(system) bus speed.

GB (DDR 266) Registered ECC DDR 333/266 (PC2700/PC2100) SDRAM

100 MHz/ZCR slot, One PCI-X-100 MHz slot)

+12V, −12V and +5V standby

LED

1-6

Chapter 1: Introduction

ACPI Features

• Microsoft OnNow

• Slow blinking LED for suspend state indicator

• Main switch override mechanism

Onboard I/O

• One IPMI 2.0 socket

• Two Intel 82541G1 Gigabit Ethernet controllers

• 2 EIDE Ultra DMA/100 bus master interfaces

• 1 floppy port interface

• 1 EPP/ECP Parallel Port

• PS/2 mouse and PS/2 keyboard ports

• Up to 4 USB 2.0 (Universal Serial Bus) (2 ports, 2 Headers)

• Super I/O

• 2 Intel 6300ESB (Hance Rapids) SATA ports support 2 drives (RAID 0,
1, JBOD)

• Marvell AIC 8140 SATA Controller supports 8 ports

• ATI 8 MB Rage XL Graphic Card

• 2 COM ports(1 header, 1 port)

Other

• Internal/external modem ring-on

• Wake-on-LAN (WOL)

• Console redirection

• SMBus for SMC Power Supply

• Fan Speed Control by Thermal Management (via BIOS)

Introduction

CD/Diskette Utilities

• BIOS flash upgrade utility, device drivers and software management

Dimensions

• ATX Ext. 12" x 13.05" (304.8 x 331.5 mm)

1-7

Introduction

MCH

4_DDR_333/266

DIMMs

6300ESB

FWH

LPC I/O

LPC BUS

HUB

BMC CON.

PCI BUS(32-BIT)

DIMMs

USB

0,1,2,3

USB PORT

VGA

KB.

SER.2

SER.1

H/W
MONITOR

FDD.

0, 1

SATA

SATA

UDMA-100

IDE

PRI/SEC

A

PXH#1

B

SATA

HC2_8Ports

PCIX BUS(100 MHZ)

PCIX BUS(133 MHZ)

1.5V

3.3V

DDR266
DDR333

8.1W 133

266MB/s

1_PCIX-100

GRN_Slot

G LAN

K_II

1_PCIX-133

Slot

PCI-E A(X8)

1_PCIX-E
(X8)Slot

PCI-E C(X8)

(X8)Slot

1_PCIX-E

PCI-E B(X8)

B

C

A

1_PCIX-100

Slot

GLAN

K_II

PCIX66_BUS

1_PCI32

4_DDR_333/266

CH.A

CH.B

CPU 1

CPU 2

Slot

1_PCIX-100

Slot

SATA

HC2_8Ports

1_PCIX-100

GRN_Slot

1_PCIX-133

Slot

X6DHT-G User's Manual

PCIX BUS(100 MHZ)

PXH#1

PCIX BUS(133 MHZ)

1_PCIX-E
(X8)Slot

1_PCIX-E
(X8)Slot

8.1W 133

PCI-E B(X8)

IDE

PRI/SEC

SATA
0,

USB PORT

0,1,2,3

1.5V

3.3V

PCI-E A(X8)

PCI-E C(X8)

UDMA-100

SATA

USB

CPU 2

DDR266
DDR333

6300ESB

LPC I/O

MCH

CPU 1

HUB

266MB/s

CH.A

CH.B

PCIX66_BUS

PCI BUS(32-BIT)

LPC BUS

FWH

4_DDR_333/266

DIMMs

4_DDR_333/266

DIMMs

G LAN

K_II

1_PCI32

VGA

BMC CON.

GLAN

K_II

Slot

KB.

Figure 1-9. Block Diagram of the E7520 (Lindenhurst) Chipset

Note: This is a general block diagram. Please see the previous Motherboard

Features pages for details on the features of each motherboard.

1-8

FDD.

SER.1
SER.2

H/W
MONITOR

Chapter 1: Introduction

1-2 Chipset Overview

Built upon the functionality and the capability of the 7520 Lindenhurst
chipset, The X6DHT-G motherboard provides the performance and feature
set required for dual processor-based servers, with configuration options
optimized for communications, presentation, storage, computation or data­base applications. The Intel E7520 (Lindenhurst) chipset consists of the
following components: the Lindenhurst Memory Controller Hub (MCH), the
6300ESB (Hance Rapids) I/O Controller Hub (Hance Rapids ICH), and the
Intel PCI-X Hub (PXH).

The E7520 (Lindenhurst) MCH supports single or dual Xeon EM64T (Nocona)
processors with Front Side Bus speeds of 800 MHz. Its memory controller
provides direct connection to two channels of registered DDR266, DDR333
with a marched system bus address and data bandwidths of up to 5.4GB/
s. The E7520 (Lindenhurst) also supports the new PCI Express high speed
serial I/O interface for superior I/O bandwidth. The MCH provides three
configurable x8 PCI Express interfaces which may alternatively be config­ured as two independent x4 PCI Express interfaces. These interfaces sup­port connection of the MCH to a variety of other bridges that are compliant
with the PCI Express Interface Specification, Rev. 1.0a.

6300ESB (Hance Rapids) System Features

Introduction

The I/O Controller Hub provides the I/O subsystem with access to the rest
of the system. It supports 2-channel Ultra ATA/100 Bus Master IDE Control­ler, two Serial ATA (SATA) Host Controllers, SMBus 2.0 Controller, LPC/
Flash BIOS Interface, PCI 2.3 Interface, and Integrated System Management
Controller.

6300ESB (Hance Rapids) ICH System Features

The 6300ESB (Hance Rapids) ICH system consists of:
The I/O Controller Hub (Hance Rapids ICH) provides the I/O subsystem with

access to the rest of the system. Additionally, it integrates many I/O func­tions.

The 6300ESB (Hance Rapids) integrates: 2-channel Ultra ATA/100 Bus
Master IDE Controller, two Serial ATA (SATA) Host Controllers, SMBus 2.0
Controller, LPC/Flash BIOS Interface, PCI-X (66MHz) 1.0 Interface, PCI 2.2
Interface and System Management Controller.

1-9

X6DHT-G User's Manual

1-3 Special Features

Introduction

Recovery from AC Power Loss

BIOS provides a setting for you to determine how the system will respond
when AC power is lost and then restored to the system. You can choose
for the system to remain powered off (in which case you must hit the
power switch to turn it back on) or for it to automatically return to a power­on state. See the Power Lost Control setting in the Advanced BIOS Setup
section (Peripheral Device Configuration) to change this setting. The default
setting is Last State.

1-4 PC Health Monitoring

This section describes the PC health monitoring features of the SUPER
X6DHT-G. All have an onboard System Hardware Monitor chip that sup­ports PC health monitoring.

Onboard Voltage Monitors for the CPU Cores, Chipset
Voltage, Memory Voltage, +3.3V, +5V, +12V and +5V Standby

An onboard voltage monitor will scan these voltages continuously. Once a
voltage becomes unstable, a warning is given or an error message is sent
to the screen. Users can adjust the voltage thresholds to define the sensi­tivity of the voltage monitor.

Fan Status Monitor with Firmware/Software On/Off Control

The PC health monitor can check the RPM status of the cooling fans. The
onboard CPU and chassis fans are controlled by Thermal Management in
the Advanced BIOS Settings.

Environmental Temperature Control

The thermal control sensor monitors the CPU temperature in real time and
will turn on the thermal control fan whenever the CPU temperature exceeds
a user-defined threshold. The overheat circuitry runs independently from
the CPU. It can continue to monitor for overheat conditions even when the
CPU is in sleep mode. Once it detects that the CPU temperature is too high,
it will automatically turn on the thermal control fan to prevent any overheat

1-10

Chapter 1: Introduction

damage to the CPU. The onboard chassis thermal circuitry can monitor the
overall system temperature and alert users when the chassis temperature
is too high.

CPU Fan Auto-Off in Sleep Mode

The CPU fan activates when the power is turned on. It continues to operate
when the system enters Standby mode. When in sleep mode, the CPU will
not run at full power, thereby generating less heat.

CPU Overheat LED and Control

This feature is available when the user enables the CPU overheat warning
function in the BIOS. This allows the user to define an overheat tempera­ture. When this temperature is exceeded, both the overheat fan and the
warning LED are triggered.

System Resource Alert

This feature is available when used with Supero Doctor III in the Windows
OS environment or used with Supero Doctor II in Linux. SDIII is used to
notify the user of certain system events. For example, if the system is
running low on virtual memory and there is insufficient hard drive space for
saving the data, you can be alerted of the potential problem.

Auto-Switching Voltage Regulator for the CPU Core

The auto-switching voltage regulator for the CPU core can support up to
20A current and auto-sense voltage IDs ranging from 0.83V to 1.63V. This
will allow the regulator to run cooler and thus make the system more stable.

Introduction

1-5 ACPI Features

ACPI stands for Advanced Configuration and Power Interface. The ACPI
specification defines a flexible and abstract hardware interface that pro­vides a standard way to integrate power management features throughout
a PC system, including its hardware, operating system and application soft­ware. This enables the system to automatically turn on and off peripherals
such as CD-ROMs, network cards, hard disk drives and printers. This also
includes consumer devices connected to the PC such as VCRs, TVs, tele­phones and stereos.

1-11

In addition to enabling operating system-directed power management, ACPI
provides a generic system event mechanism for Plug and Play and an oper­ating system-independent interface for configuration control. ACPI lever-

Introduction

ages the Plug and Play BIOS data structures while providing a processor
architecture-independent implementation that is compatible with the Win­dows 2000, Windows 2003 and Windows Vista Operating Systems.

When the CPU goes into a suspend state, the chassis power LED will start
blinking to indicate that the CPU is in suspend mode. When the user presses
any key, the CPU will wake-up and the LED will automatically stop blinking
and remain on.

When an ATX power supply is used, the power button can function as a
system suspend button to make the system enter a SoftOff state. The moni­tor will be suspended and the hard drive will spin down. Pressing the
power button again will cause the whole system to wake-up. During the
SoftOff state, the ATX power supply provides power to keep the required
circuitry in the system alive. In case the system malfunctions and you want
to turn off the power, just Press and hold the power button for 4 seconds.
This option can be set in the Power section of the BIOS Setup routine.

X6DHT-G User's Manual

Slow Blinking LED for Suspend-State Indicator

Main Switch Override Mechanism

External Modem Ring-On

Wake-up events can be triggered by a device such as the external modem
ringing when the system is in the SoftOff state. Note that external modem
ring-on can only be used with an ATX 2.01 (or above) compliant power
supply.

Wake-On-LAN (WOL)

Wake-On-LAN is defined as the ability of a management application to re­motely power up a computer that is powered off. Remote PC setup, up­dates and asset tracking can occur after hours and on weekends so that
daily LAN traffic is kept to a minimum and users are not interrupted. The
motherboard has a 3-pin header (WOL) to connect to the 3-pin header on a

1-12

Chapter 1: Introduction

Network Interface Card (NIC) that has WOL capability. Wake-On-LAN must
be enabled in BIOS. Note that Wake-On-LAN can only be used with an ATX

2.01 (or above) compliant power supply.

1-6 Power Supply

As with all computer products, a stable power source is necessary for
proper and reliable operation. It is even more important for processors that
have high CPU clock rates.

The SUPER X6DHT-G accommodates ATX 24-pin power supplies. Although
most power supplies generally meet the specifications required by the CPU,
some are inadequate. You should use one that will supply at least 400W of
power. Your power supply must supply 1.5A for the Ethernet ports. The
+12V, 4-pin power connector (J38) is required to ensure adequate power
supply to the system. Additionally, you should also use the onboard 12V 8­pin power connector (J1D1) to support Intel Xeon CPUs. Failure to provide
this extra power will cause the CPU to become unstable after only a few
minutes of operation. See Section 2-5 for details on connecting the power
supply.

It is strongly recommended that you use a high quality power supply that
meets ATX power supply Specification 2.02 or above. It must also be SSI
compliant (info at http://www.ssiforum.org/). Additionally, in areas where
noisy power transmission is present, you may choose to install a line filter
to shield the computer from noise. It is recommended that you also install a
power surge protector to help avoid problems caused by power surges.

1-7 Super I/O

Introduction

The disk drive adapter functions of the Super I/O chip include a floppy disk
drive controller that is compatible with industry standard 82077/765, a data
separator, write pre-compensation circuitry, decode logic, data rate selec­tion, a clock generator, drive interface control logic and interrupt and DMA
logic. The wide range of functions integrated onto the Super I/O greatly
reduces the number of components required for interfacing with floppy disk
drives. The Super I/O supports 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M disk
drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.It also
provides two high-speed, 16550 compatible serial communication ports
(UARTs). Each UART includes a 16-byte send/receive FIFO, a program­mable baud rate generator, complete modem control capability and a pro-

1-13

cessor interrupt system. Both UARTs provide legacy speed with baud rate
of up to 115.2 Kbps as well as an advanced speed with baud rates of 250

K, 500 K, or 1 Mb/s, which support higher speed modems.

Introduction

The Super I/O supports one PC-compatible printer port (SPP), Bi-directional
Printer Port (BPP), Enhanced Parallel Port (EPP) or Extended Capabilities Port
(ECP).

The Super I/O provides functions that comply with ACPI (Advanced Con­figuration and Power Interface), which includes support of legacy and ACPI
power management through an SMI or SCI function pin. It also features auto
power management to reduce power consumption.

X6DHT-G User's Manual

1-14

Chapter 2: Installation

Chapter 2

Installation

2-1 Static-Sensitive Devices

Electrostatic Discharge (ESD) can damage electronic components. To pre­vent damage to your system board, it is important to handle it very carefully.
The following measures are generally sufficient to protect your equipment
from ESD.

Precautions

• Use a grounded wrist strap designed to prevent static discharge.

• Touch a grounded metal object before removing the board from the anti­static bag.

• Handle the board by its edges only; do not touch its components, periph­eral chips, memory modules or gold contacts.

• When handling chips or modules, avoid touching their pins.

• Put the motherboard and peripherals back into their antistatic bags when
not in use.

• For grounding purposes, make sure your computer chassis provides ex­cellent conductivity between the power supply, the case, the mounting
fasteners and the motherboard.

• Use only the correct type of onboard CMOS battery. Do not install the
onboard upside down battery to avoid possible explosion.

Unpacking

The motherboard is shipped in antistatic packaging to avoid static damage.
When unpacking the board, make sure the person handling it is static pro­tected.

2-1

X6DHT-G User's Manual

2-2 Xeon EM64T Processor and Heatsink Installation

When handling the processor package, avoid placing direct
pressure on the label area of the fan. Also, do not place the
motherboard on a conductive surface, which can damage the BIOS

!

battery and prevent the system from booting up.

IMPORTANT: Always connect the power cord last and always remove it
before adding, removing or changing any hardware components. Make sure
that you install the processor into the CPU socket before you install the
CPU heatsink.

CPU Installation

1. Lift the lever on the CPU
socket: lift the lever completely
as shown on the picture on the
right; otherwise, you will dam­age the CPU socket when power
is applied. (Install CPU1 first.)

Socket lever

2. Insert the CPU in the socket,
making sure that pin 1 of the
CPU aligns with pin 1 of the
socket (both corners are marked
with a triangle). When using
only one CPU, install it into CPU
socket #1 (Socket #2 is auto­matically disabled if only one
CPU is used).

Pin 1

3. Press the lever down until you
hear the click, so you can be
sure that the CPU is securely in­stalled in the CPU socket.

Socket lever in the
locking Position

2-2

CEK Heatsink Installation

1. Do not apply any thermal grease to

the heatsink or the CPU die-the required
amount has already been applied.

2. Place the heatsink on top of the CPU

so that the four mounting holes are
aligned with those on the retention
mechanism.

3. Screw in two diagonal screws (ie

the #1 and the #2 screws) until just
snug (-do not fully tighten the screws
to avoid possible damage to the CPU.)

Chapter 2: Installation

CEK Passive Heatsink

Screw#1

Screw#2

4. Finish the installation by fully tight-

ening all four screws.

Screw#1

Screw#2

2-3

X6DHT-G User's Manual

To Un-install the Heatsink

Caution! We do not recommend that the

CPU or the heatsink be removed. How­ever, if you do need to un-install the
heatsink, please follow the instructions
below to uninstall the heatsink to prevent
damage done to the CPU or the CPU
socket.

1. Unscrew and remove the heatsink
screws from the motherboard in the se­quence as show in the picture on the right.

2. Hold the heatsink as show in the picture
on the right and gently wriggle the heatsink
to loosen it from the CPU. (Do not use ex­cessive force when wriggling the
heatsink!!)

3. Once the CPU is loosened, remove the
heatsink from the CPU socket.

4. Clean the surface of the CPU and the
heatsink to get rid of the old thermal
grease. Reapply the proper amount of ther­mal grease on the surface before you re­install the CPU and the heatsink.

2-4

Chapter 2: Installation

Figure 2-1. PGA604 Socket: Empty and with Processor Installed

Empty socket

Lever

!

Warning! Make

sure you lift the
levercompletely
when installing the
CPU. If the lever is
only partly raised,
damage to the
socket or CPU may
result.

Triangle

Processor

(installed)

Triangle

Mounting the Motherboard in the Chassis

All motherboards have standard mounting holes to fit different types of
chassis. Make sure that the locations of all the mounting holes for both the
motherboard and the chassis match. Although a chassis may have both
plastic and metal mounting fasteners, metal ones are highly recommended
because they ground the motherboard to the chassis. Make sure that the
metal standoffs click in or are screwed in tightly and then, use a screw­driver to secure the motherboard onto the motherboard tray. Note: Some
components are very close to the mounting holes. Make sure to take all
precautionary measures to prevent any damage done to these components
when you install the motherboard into the chassis.

2-5

X6DHT-G User's Manual

2-3 Installing DIMMs

Note: Check the Supermicro web site for recommended memory modules:

http://www.supermicro.com.

CAUTION

Exercise extreme care when installing or removing DIMM modules

to prevent any possible damage. Also note that the memory is

interleaved to improve performance (see step 1).

DIMM Installation (See Figure 2-2 on Page 2-6)

1. Insert the desired number of DIMMs into the memory slots, starting with
Bank 1. The memory scheme is interleaved so you must install two modules
at a time, beginning with Bank 1, then Bank 2, and so on.

2. Insert each DIMM module vertically into its slot. Pay attention to the notch
along the bottom of the module to prevent inserting the DIMM module incor­rectly.

3. Gently press down on the DIMM module until it snaps into place in the
slot. Repeat for all modules (see step 1 above).

Memory Support

The X6DHT-G supports up to 16/32 GB Registered ECC DDR 333/266
(PC2700/PC2100) memory. All motherboards were designed to support 2GB
(DDR333)/4GB (DDR 266) modules in each slot, but has only been verified
for up to 1 GB modules.

2-6

To Install: In­sert module
vertically and
press down
until it snaps
intoplace.
Pay attention
to the align­ment notch at
the bottom.

Chapter 2: Installation

Figure 2-2. Installing and Removing DIMMs

To Remove:

Use your thumbs to gently push near the edge of both ends
of the module. This should release it from the slot.

2-4 I/OPorts/Control Panel Connectors

The I/O ports are color coded in conformance with the PC 99 specification.
See Figure 2-3 below for the colors and locations of the various I/O ports.

Figure 2-3. I/O Port Locations and Definitions

Mouse (Green)

Keyboard (Purple)

USB 0/1

COM1

Parallel Port

LAN1 LAN2

Video

2-7

X6DHT-G User's Manual

Front Control Panel

JF1 contains header pins for various buttons and indicators that are nor­mally located on a control panel at the front of the chassis. These connec­tors are designed specifically for use with Supermicro server chassis. See
Figure 2-4 for the descriptions of the various control panel buttons and LED
indicators. Refer to the following section for descriptions and pin defini­tions.

Figure 2-4. JF1 Header Pins

1920

Ground

X

NMI

X

Power LED

HDD LED

NIC1 LED

NIC2 LED

Overheat LED

Powe r Fail LED

Ground

Ground

2

2-8

Vcc

Vcc

Vcc

Vcc

Vcc

Vcc

Reset

Reset Button
Power Button

Pwr

1

Chapter 2: Installation

ly

2-5 Connecting Cables

ATX Power Connector

The main power supply connector
(JPW1) on the X6DHT-G meets the
SSI (Superset ATX) specification.
You can only use a 24-pin power
supply cable on the motherboard.
Make sure that the orientation of
the connector is correct. You
must also use the 4-pin (J38)
power connector for adequate
power supply to the system. See
the table on the right for pin defini­tions.

Processor Power
Connector

In addition to the Primary ATX
power connector (above), the 12v
8-pin Processor connector at J1D1
must also be connected to your
power supply for CPU power con­sumption to avoid causing instabil­ity to the system.

ATX Power Supply 24-pin Connector

Pin Definitions(JPW1)

Pin Number Definition
13 +3.3V
14 -12V
15 COM
16 PS_ON#
17 COM
18 COM
19 COM
20 Res(NC)
21 +5V
22 +5V
23 +5V
24 COM

Pin Number Definition

1 +3.3V
2 +3.3V
3 COM

4 +5V

5 COM

6 +5V

7 COM

8 PWR_OK
9 5VSB
10 +12V
11 +12V
12 +3.3V

+12V 4-pin

Connector

(J38)

Pins #

Definition

1 & 2

Ground

3 & 4

+12 V

8-Pin +12v Power Supp

Connector (J1D1)

Pins

Definition

1 thru 4

Ground

5 thru 8

+12v

4-Pin12V CPU PWR

Fan6

Parrallel

RAGE­XL

JPL1

JPL2

Port

JLAN1

GLAN
CTLR

GLAN
CTLR

JWD

Slot4

Slot3

Slot2

Slot1

JPG1

Bank1

Bank2

Bank3

Bank4

Slot6

Slot5

PCI-E X8

JD1

Fan5

12V 4-Pin
PWR

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

DIMM 3A

DIMM 3B
DIMM 4A

DIMM 4B

UPER X6DHT-G

S

PCI-E X8

PCI-X 3 133 MHz

PCI-X 100 MHz/ZCR

PCI-X100 MHz

PCI-33 MHz

KB/

Mouse

USB
0/1

COM1

VGA

LAN1

LAN2

Buzzer

24-Pin ATX PWR 8-Pin 12V PWR

ATX PWR

E7520
Lindenhurst
North
Bridge

S I/O

Battery

SMB

JBT1

BIOS

Fan8

USB2/3

WOL

SMBus
PWR

SATA0

PXH

6300ESB

ICH

Intel

Fan7

SATA1

SATA0

SATA1

DS9
DS1

DS10
DS2

IPMI

COM2

24-Pin

JPW1

®

2-9

12V 8-pin
PWR

CPU1

CPU2

JPS1

SATA

Controller

Marvell

DS11
DS3

SATA2

DS12
DS4

SATA3

SATA4

DS6

SATA5

DS13
DS5

DS14

JWOR

OH
LED

Floppy

DS15
DS7

SATA6

DS16

SATA7

JAR

J3P

PSF

Fan1

JF1

FP Control

Fan2

Fan3

IDE2

IDE1

C

2

M-SAT A

I

JL1

M-SATA

Act LED

Fan4

DS8

X6DHT-G User's Manual

NMI Button

The non-maskable interrupt button
header is located on pins 19 and
20 of JF1. Refer to the table on
the right for pin definitions.

Power LED

The Power LED connection is lo­cated on pins 15 and 16 of JF1.
Refer to the table on the right for
pin definitions.

NMI Button Pin

Definitions (JF1)

Pin

Number

PWR_LED Pin Definitions

Number

Definition
19
20

Pin

Control
Ground

(JF1)

Definition
15
16

Vcc

Control

COM1

Buzzer

Fan5

12V 4-Pin
PWR

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

DIMM 3A

DIMM 3B
DIMM 4A

DIMM 4B

UPER X6DHT-G

S

PCI-E X8

PCI-E X8

PCI-X 3 133 MHz

PCI-X 100 MHz/ZCR

PCI-X100 MHz

PCI-33 MHz

COM2

JD1

24-Pin

JPW1

®

Fan6
KB/
Mouse

USB
0/1

Bank1

Bank2

Parrallel

Port

Bank3

JLAN1

Bank4

VGA

LAN1

LAN2

GLAN
CTLR

Slot6

GLAN
CTLR

Slot5

JPL1

Slot4

JPL2

Slot3

Slot2

RAGE­XL

Slot1

JPG1

JWD

ATX PWR

E7520
Lindenhurst
North
Bridge

S I/O

Battery

SMB

SMBus
PWR

BIOS

Fan8

6300ESB

USB2/3

JBT1

SATA0

WOL

12V 8-pin
PWR

Fan7

CPU1

CPU2

IPMI

PXH

JPS1

SATA

Controller

ICH

Marvell

DS11

DS9

DS3

DS1

SATA0

SATA2

DS12

DS10

Intel

DS4

DS2

SATA1

SATA3

SATA1

SATA4

SATA5

JAR

J3P

PSF

Fan1

JF1

FP Control

PWR LED

Fan2

Fan3

OH
LED

IDE2

IDE1

Floppy

C

2

JWOR

M-SATA

I

JL1

M-SAT A

Act LED

DS15

DS13

DS7

DS5

SATA6

Fan4

DS16

DS14

DS8

DS6

SATA7

Ground

Power LED

HDD LED

NIC1 LED

NIC2 LED

Overheat LED

Power Fa il LED

Ground

Ground

1920

X

Reset

1

2

NMI

X

Vcc

Vcc

Vcc

Vcc

Vcc

Vcc

Pwr

NMI

Reset Button
Power Button

2-10