Fujitsu D2785 Technical Manual

System Board D2785
for TX120 S2

Technical Manual

Edition April 2009

Comments… Suggestions… Corrections…

The User Documentation Department would like to
know your opinion of this manual. Your feedback helps
us optimize our documentation to suit your individual
needs.

Feel free to send us your comments by e-mail to

[e-mail].

Certified documentation
according to DIN EN ISO 9001:2000

To ensure a consistently high quality standard and
user-friendliness, this documentation was created to
meet the regulations of a quality management system
which complies with the requirements of the standard
DIN EN ISO 9001:2000.

cognitas. Gesellschaft für Technik-Dokumentation mbH

www.cognitas.de

Copyright and Trademarks

Copyright © 2009 FujitsuTechnologySolutionsGmbH.

All rights reserved.
Delivery subject to availability; right of technical modifications reserved.

All hardware and software names used are trademarks of their respective manufacturers.

D2785 (TX120 S2) Technical Manual

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Notes on safety . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 CE certificate of conformity . . . . . . . . . . . . . . . . . . 10

2.3 ENERGY STAR . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4 Environmental protection . . . . . . . . . . . . . . . . . . . 11

3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Main memory . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 PCI bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4 Screen resolution . . . . . . . . . . . . . . . . . . . . . . . 18

3.5 Temperature / system monitoring . . . . . . . . . . . . . . . 19

3.6 Connectors and indicators . . . . . . . . . . . . . . . . . . 20

3.6.1 System board . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.6.2 Connector panel . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.6.3 Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 Replacing the lithium battery . . . . . . . . . . . . . . . . . 27

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

D2785 (TX120 S2) Technical Manual 5

1 Introduction

This technical manual describes the system board D2785, which is equipped
with one Intel

®

processor.
You will find further information in the manual “BIOS Setup”.
Further information about drivers is provided in the readme files on the hard

disk, or on the supplied CDs/DVDs.

Notational conventions

The meanings of the symbols and fonts used in this manual are as follows:

Text in talics indicates commands or menu items.

Text in fixed font indicates system output on the monitor.
Text in semi-bold

fixed font

indicates values to be entered through the
keyboard.

[Key symbol] indicates keys according to their representation on

the keyboard.
If capital letters are to be entered explicitly, then the

Shift key is shown, e.g. [SHIFT] - [A] for A.
If two keys need to be pressed at the same time,

then this is shown by placing a hyphen between the
two key symbols.

“Quotation marks” indicate names of chapters and terms that are

being emphasized.

Ê describes activities that must be performed in the

order shown.

V CAUTION! describes activities that must be performed in the

order shown.

I indicates additional information, notes and tips.

Table 1: Notational conventions

D2785 (TX120 S2) Technical Manual 7

2 Important notes

In this chapter you will find essential information regarding safety when working
with the system board.

V CAUTION!

With the system board installed you must open the system to access the
system board. How to access the system board of your system is
described in the appropriate service supplement.

When handling the system board, refer to the specific notes on safety in
the operating manual and/or service supplement for the respective
server.

2.1 Notes on safety

V CAUTION!

● The actions described in these instructions should only be performed

by authorized, qualified personnel. Equipment repairs should only be
performed by qualified staff. Any failure to observe the guidelines in
this manual, and any unauthorized openings and improper repairs
could expose the user to risks (electric shock, fire hazards) and could
also damage the equipment. Please note that any unauthorized
openings of the device will result in the invalidation of the warranty
and exclusion from all liability.

● Transport the device only in the antistatic original packaging or in

packaging that protects it from knocks and jolts.

● Only install expansions that are allowed for the system board. If you

install other expansions, you may damage the requirements and rules
governing safety and electromagnetic compatibility or your system.
Information on which system expansions are suitable can be
obtained from the customer service centre or your sales outlet.

● The warranty expires if the device is damaged during the installation

or replacement of system expansions.

8 Technical Manual D2785 (TX120 S2)

Notes on safety Important notes

V CAUTION!

● Components can become very hot during operation. Ensure you do

not touch components when making extensions to the system board.
There is a danger of burns!

● Transmission lines to peripheral devices must be adequately

shielded.

● To the LAN wiring the requirements apply in accordance with the

standards EN 50173 and EN 50174-1/2. As minimum requirement
the use of a protected LAN line of category 5 for 10/100 MBps
Ethernet, and/or of category 5e for Gigabit Ethernet is considered.
The requirements of the specification ISO/IEC 11801 are to be
considered.

● Never connect or disconnect data transmission lines during a storm

(lightning hazard).

Batteries

V CAUTION!

● Incorrect replacement of lithium battery may lead to a risk of

explosion. The batteries may only be replaced with identical batteries
or with a type recommended by the manufacturer.

It is essential to observe the instructions in chapter “Replacing the

lithium battery”.

Modules with electrostatic-sensitive components

Boards with electrostatic sensitive devices (ESD) are marked with the following
label:

Figure 1: ESD label

D2785 (TX120 S2) Technical Manual 9

Important notes Notes on safety

When you handle components fitted with ESDs, you must observe the following
points under all circumstances:

● You must always discharge yourself of static charges (e.g. by touching a

grounded object) before working.

● The equipment and tools you use must be free of static charges.

● Shut-down the system and remove the power plug from the power socket

before inserting or removing boards containing ESDs.

● Always hold boards with ESDs by their edges.

● Never touch pins or conductors on boards fitted with ESDs.

● Use a grounding cable designed for this purpose to connect yourself to the

system unit as you install/deinstall the board.

● Place all components on a static-safe base.

I You will find a detailed description for handling ESD components in the

relevant European or international standards (EN 61340-5-1,
ANSI/ESD S20.20).

Notes about boards

● During installation/deinstallation of the board, observe the specific instruc-

tions described in the service supplement for the respective server.

● Shut-down the system and remove the power plug from the power socket

before you make modifications on an installed board.

● To prevent damage to the board, the components and conductors on it,

please take great care when you insert or remove boards. Take great care
to ensure that extension boards are slotted in straight, without damaging
components or conductors on the board, or any other components, for
example EMI spring contacts

● Be careful with the locking mechanisms (catches, centring pins etc.) when

you replace the system board or components on it, for example memory
modules or processors.

● Never use sharp objects (screw drivers) for leverage.

10 Technical Manual D2785 (TX120 S2)

CE certificate of conformity Important notes

2.2 CE certificate of conformity

2.3 ENERGY STAR

The board complies with the requirements of the EC directives
2004/108/EC regarding “Electromagnetic Compatibility” and
2006/95/EC “Low Voltage Directive”. This is indicated by the CE
marking (CE = Communauté Européenne).

Compliance was tested in a typical PRIMERGY configuration.

In some particular configurations

1

the PRIMERGY TX120 S2 is
equipped with a power management system which, in energy­saving mode, reduces the power consumption to <65 W. The
server thus satisfies the requirements of the U.S. Environmental
Protection Agency (EPA).

The EPA estimates that computer systems use around 5 % of all
electricity in the office sector and that this figure is growing
rapidly. If all computer systems and peripherals were placed in
energy-saving mode when not in use, the overall savings in
electricity could amount to some US $ 2 billion annually. These
savings would also prevent the emission of 20 million tons of
carbon dioxide into the atmosphere - equivalent to the emissions
from 5 million automobiles.

As an ENERGY STAR partner, Fujitsu Technology Solutions
GmbH has determined that in some particular configurations this
product meets the ENERGY STAR guidelines for energy
efficiency.

1

These servers are always delivered with a particular setting in the BIOS setup. For details
please see the manual “D2785 BIOS Setup Utility for PRIMERGY TX120 S2” on the
PRIMERGY ServerView Suite DVD 2.

D2785 (TX120 S2) Technical Manual 11

Important notes Environmental protection

2.4 Environmental protection

Environmentally friendly product design and development

This product has been designed in accordance with standards for ”environmen­tally friendly product design and development“. This means that key factors
such as durability, selection and labeling of materials, emissions, packaging,
ease of dismantling and recycling have been taken into account.

This saves resources and thus reduces the harm done to the environment.

Energy-saving information

Devices that do not need to be constantly switched on should be switched off
until they are needed as well as during long breaks and after completion of work.

Packaging information

Do not throw away the packaging. You may need it later for transporting the
system. If possible, the equipment should only be transported in its original
packaging.

Information on handling consumables

Please dispose of batteries in accordance with local regulations.
In accordance with EU directives, batteries must not be disposed of with

unsorted domestic waste. They can be returned free of charge to the manufac­turer, dealer or an authorized agent for recycling or disposal.

All batteries containing pollutants are marked with a symbol (a crossed-out
garbage can). They are also marked with the chemical symbol for the heavy
metal that causes them to be categorized as containing pollutants:

Cd Cadmium
Hg Mercury
Pb Lead

Labels on plastic casing parts

Please avoid sticking your own labels on plastic parts wherever possible, since
this makes it difficult to recycle them.

12 Technical Manual D2785 (TX120 S2)

Environmental protection Important notes

Returns, recycling and disposal

Details regarding the return and recycling of devices and consumables within
Europe can also be found in the "Returning used devices" manual, via your local
Fujitsu Technology Solutions branch or from our recycling center in Paderborn:

Fujitsu Technology Solutions
Recycling Center
D-33106 Paderborn

Tel. [phone]
Fax [phone]

The device must not be disposed of with domestic waste.
This device is labeled in compliance with European directive
2002/96/EG on waste electrical and electronic equipment
(WEEE).
This directive sets the framework for returning and recycling
used equipment and is valid across the EU. When returning
your used device, please use the return and collection
systems available to you. Further information can be found at

www.ts.fujitsu.com/recycling.

D2785 (TX120 S2) Technical Manual 13

3 Features

3.1 Overview

Processors

– Intel

®

CoreTM 2 Duo processor P8400/T9400, 1066 MHz FSB

– 478 pin Micro FCPGA processor socket

Main memory

– 4 slots for main memory DDR2 533/667 MHz (unbuffered),

SDRAM memory modules with 1 GB, 2 GB and 4 GB
– maximum 16 GB of main memory
– minimum 1 GB of main memory
– ECC multiple bit error detection and single bit error correction

Chips on the system board

– Intel 5100 MCH (north bridge) chipset
– Intel 82801GR ICH9-R (south bridge) chipset
– SMC 8700C (for Service LAN)
– Intel ICH9-R integrated Gigabit Ethernet controller with Intel 82567 LM
– Flash EPROM for:

– local BIOS update via bootable USB device

– remote BIOS update via LAN
– Onboard iRMC S2 Server Management controller with integrated graphic

controller and associated service LAN connector
– ADT7462 temperature and system monitoring controller

14 Technical Manual D2785 (TX120 S2)

Overview Features

Internal connectors

– 1x front panel connector
– 1x ATX power supply connector
– 1x ATX 12V (CPU) power supply connector
– 2x system fan connectors
– 1x SATA connector
– 1x SATA MLC1 connector
– 1x SAS-LED connector
– 1x USB 2.0 connector (for an optional backup drive)
– 1x connector for the front side Service LAN connector

External connectors

– Rear side:

– 1x serial interface (COM1)
– 1x VGA connector
– 1x RJ45 Service LAN connector
– 1x RJ45 LAN connector
– 5x USB 2.0 connectors

– Front side:

– 1x RJ45 Service LAN connector (optional)
– 2x USB 2.0 connectors

Slots for expansion boards (low profile)

– 1 x PCI (32 Bit / 33 MHz) expansion slot
– 3 x PCI Express x8 expansion slots

BIOS

Phoenix System BIOS V 4.06 (Trusted Core)

Environmental protection

Battery in holder

Form factor, slot compatibility list

260 mm x 305 mm

D2785 (TX120 S2) Technical Manual 15

Features Overview

TPM (option)

The system board can be equipped with a TPM (Trusted Platform Module) by
the manufacturer or by an add-on kit. This module enables programs from third
party manufacturers to store key information (e.g. drive encryption using
Windows Bitlocker Drive Encryption).

The TPM is activated via the BIOS system (for more information, refer to the
BIOS manual).

V CAUTION!

– When using the TPM, note the program descriptions provided by the

third party manufacturers.

– You must also create a backup of the TPM content. To do this, follow

the third party manufacturer's instructions. Without this backup, if the
TPM or the system board is faulty you will not be able to access your
data.

– If a failure occurs, please inform your service about the TPM

activation before it takes any action, and be prepared to provide them
with your backup copies of the TPM content.

16 Technical Manual D2785 (TX120 S2)

Main memory Features

3.2 Main memory

The system board supports up to 16 Gbyte main memory. 4 slots (2 memory
banks with 2 modules) are available for the main memory. Each memory bank
can be populated with 1 GB, 2 GB or 4 GB unbuffered DDR2 memory modules.

Module population

Figure 2: Detail - slots of the main memory

– If the memory modules are populated in pairs, each pair must consist of

identical memory modules (2-way interleaved mode).

– The module capacity between pairs can differ: pair 1A/1B can be populated

with two 1 GB memory modules and pair 2A/2B with two 2 GB memory
modules.

Following table shows the mandatory population order:

Modes DIMM-1A DIMM-1B DIMM-2A DIMM-2B

single channel populated empty empty empty
dual channel populated populated empty empty
single / dual

channel

1

1

The dual channel mode is only activated, if the memory size installed in the DIMM-2A slot is
equal to the sum of the memory modules installed in the DIMM-1A and DIMM-1B slots.
(e. g.: DIMM-1A=1GB, DIMM-1B=1GB, DIMM-2A=2GB)

populated populated populated empty

dual channel populated populated populated populated

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

Channel A

Channel B

D2785 (TX120 S2) Technical Manual 17

Features PCI bus

3.3 PCI bus

PCI slots

Figure 3: Detail - PCI slots

PCI, PCI Express interrupts

Each device connected to a PCI bus or PCI Express can use up to four interrupt
signals depending on the functionality.

PCI and PCI-X buses use four lines named INTA to INTD, typically connected
to all devices on the bus in order to periodically balance interrupt load. An
interrupt signal may thereby be used simultaneously by multiple devices
(interrupt sharing).

PCI Express devices send their interrupts through messages. This avoids
restrictions in wiring.

PCI slot Description

1 PCI-Express x8 bus-slot
2 PCI-Express x8 bus-slot
3 32 bit PCI bus slot (32-Bit/33MHz)
4 PCI-Express x8 bus-slot

P CI s l ot 1

P CI s l ot 2

P CI s l ot 3

P CI s l ot 4

18 Technical Manual D2785 (TX120 S2)

Screen resolution Features

The following interrupt signals are used in the system:

Assignment of the PCI interrupts

If you select Auto in the BIOS setup, the interrupts are assigned automatically
and no further settings are required.

3.4 Screen resolution

Depending on the operating system used the screen resolutions in the following
table refer to the Matrox graphic controller on the system board. The Matrox
graphic controller is integrated in iRMC S2 (integrated Remote Management
Controller).

If you are using a different graphic controller, you will find details of supported
screen resolutions in the documentation supplied with the graphic controller.

Slot/device Property Interrupt signal

VGA iRMC S2 graphic Int B
LAN Intel 82567 LM Int A
Slot 1 PCIe x8 Int A, B, C, D
Slot 2 PCIe x8 Int A, B, C, D
Slot 3 PCI (33 MHz) Int A, B, C, D
Slot 4 PCIe x8 Int A, B, C, D

Screen resolution Maximal refresh rate (Hz) Maximal colour depth

640x480 85 32 Bit
800x600 85 32 Bit
1024x768 85 32 Bit
1152x864 75 24 Bit
1280x1024 60 24 Bit

D2785 (TX120 S2) Technical Manual 19

Features Temperature / system monitoring

3.5 Temperature / system monitoring

Temperature and system monitoring aim to reliably protect the computer
hardware against damage caused by overheating. In addition, any unnecessary
noise is also prevented by reducing the fan speed, and information is provided
about the system status.

The temperature and system monitoring are controlled by an onboard controller.
The following functions are supported:

Temperature monitoring

Measurement of the processor and the inhouse temperature by an onboard
sensor, measurement of the ambient temperature by a I²C temperature sensor.

Fan monitoring

Fans that are no longer available, blocked or sticky fans are detected.

Fan control

The fans are regulated according to temperature.

Sensor monitoring

The removal of, or a fault in, a temperature sensor is detected. Should this
happen all fans monitored by this sensor run at maximum speed, to achieve the
greatest possible protection of the hardware.

Voltage monitoring

When voltage exceeds warning level high or falls below warning level low an
alert will be generated.

System Event Log (SEL)

All monitored events of the system board are recorded in the System Event Log.
They could be retrieved after a reboot via ServerView.

20 Technical Manual D2785 (TX120 S2)

Connectors and indicators Features

3.6 Connectors and indicators

3.6.1 System board

Figure 4: Internal connectors of the system board D2785

FAN2
SYS

FRONT PANEL

ATX 12V1

Upper

BPL I2C
CONN

JP7

JP6

FRONT LAN

JP5

FAN1
SYS

USB

DRIVE

ATX PWR1

SATA
MLC1

SATA

JP2

JP3

USB
3/4/6

USB 7/8

LAN

Service
LAN

COM1

VGA

iRMC S2

Battery

CPU

1

2

3

4

5

6

7

8

Intel
ICH9-R

Intel
82567

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

Intel
MCH

PCI s lot 1

PCI s lot 2

PCI s lot 3

PCI s lot 4

9

10

TPM

11

D2785 (TX120 S2) Technical Manual 21

Features Connectors and indicators

Onboard diagnostic LED

Figure 5: Detail - Diagnostic LED

The LED has the following meaning:

No. Description

1 System fan 2 connector
2 Front panel connector
3 Power supply connector ATX (12 V / CPU)
4 SAS LED connector (HDD backplane)
5 Connector for Service LAN front side
6 System fan 1 connector
7 Power supply connector ATX
8 USB connector for optional backup drive
9 SATA connector
10 SATA MLC1 connector
11 Connector for TPM

LED Indicator Meaning

A green flashing iRMC S2 is healthy

Service

LAN

COM1

VGA

iRMC S2

A

22 Technical Manual D2785 (TX120 S2)

Connectors and indicators Features

3.6.2 Connector panel

Figure 6: Connector panel of the system board D2785

LAN connectors

On this system board you will find a Gigabit Ethernet controller with Intel 82567
LM integrated in the Intel ICH9-R chipset. The Gigabit Ethernet controller
supports the transfer rates of 10 Mbit/s, 100 Mbit/s and 1 Gbit/s. The LAN
controller supports WOL function through Magic Package™.

It is also possible to boot a device without its own boot hard disk via LAN. Here
PXE is supported.

The separate service LAN connector of the iRMC S2 is used as a management
interface and is prepared for operation with the Remote Management.

No. Description

1 Serial interfaceCOM1 (turquoise)
2 Monitor connector VGA (blue)
3 Service LAN connector
4 LAN connector
5 5x USB connectors (black)

1 2

3 4

5

D2785 (TX120 S2) Technical Manual 23

Features Connectors and indicators

The LAN connectors are equipped with two LEDs (light emitting diode)
indicating the transfer rate and the activity.

Figure 7: LAN indicators

No Indicator Description

1 LAN activity

(service LAN)

Steady green signal when a LAN connection exists.
Remains dark when no LAN connection exists.
Flashes green when LAN transfer takes place.

2 LAN transfer rate

(service LAN)

Steady green signal in the event of a LAN transfer
rate of100 Mbps.
Remains dark in the event of a LAN transfer rate of
10 Mbps.

3 LAN activity

(standard LAN)

Steady green signal when a LAN connection exists.
Remains dark when no LAN connection exists.
Flashes green when LAN transfer takes place.

4 LAN transfer rate

(standard LAN)

Flashes yellow in the event of a LAN transfer rate of
1 Gbps
Steady green signal in the event of a LAN transfer
rate of 100 Mbps.
Remains dark in the event of a LAN transfer rate of
10 Mbps.

31 2 4

24 Technical Manual D2785 (TX120 S2)

Connectors and indicators Features

3.6.3 Jumpers

Figure 8: Jumpers of the system board D2785

JP7

JP6

JP5

JP2

JP3

USB
3/4/6

USB 7/8

LAN

Service
LAN

COM1

VGA

iRMC S2

Battery

CPU

1

2

Intel
ICH9-R

Intel
82567

DIMM 1A

DIMM 1B

DIMM 2A

DIMM 2B

Intel
MCH

PCI s lot 1

PCI s lot 2

PCI s lot 3

PCI s lot 4

3

4

5

TPM

D2785 (TX120 S2) Technical Manual 25

Features Connectors and indicators

I The default setting for all jumpers is position 1-2.

No. Print Function Setting Description

1 JP7 Power on

path

1-2 (standard) Power on by IPMI
2-3 Power on by ICH9-R

2 JP6 Protected

RTC

1-2 (standard) RTC settings are not cleared.
2-3 RTC settings are cleared.

3 JP5 Clear

CMOS

1-2 (standard) CMOS settings are not cleared.
2-3 CMOS settings are cleared.

4 JP3 BIOS

recovery

1-2 (standard) The system is started with the

system BIOS from the system
board

2-3 The system boots from the „Flash

BIOS floppy disk“ (via an external
USB floppy disk drive) and repro­grams the system BIOS on the
system board.

5 JP2 BIOS

password
recovery

1-2 (standard) The password query is skipped.

Passwords are deleted.

2-3 The password query is effective.

D2785 (TX120 S2) Technical Manual 27

4 Replacing the lithium battery

In order to save the system information permanently, a lithium battery is
installed to provide the CMOS-memory with a current. When the charge is too
low or the battery is empty, a corresponding error message is provided. The
lithium battery must then be replaced.

V ATTENTION!

The lithium battery must be replaced with an identical battery or a battery
type recommended by the manufacturer (CR2032).

Do not throw lithium batteries into the trashcan. It must be disposed of in
accordance with local regulations concerning special waste.

Make sure that you insert the battery the right way round. The plus pole
must be on the top!

Figure 9: Replacing the lithium battery

Ê Press the locking spring into direction of the arrow (1), so that the lithium-

battery jumps out of its socket.

Ê Remove the battery (2).
Ê Insert a new lithium battery of the same type into the socket (3) and (4).

1

2

3

4

D2785 (TX120 S2) Technical Manual 29

Abbreviations

The technical terms and abbreviations given below represent only a selection of
the full list of common technical terms and abbreviations.

Not all technical terms and abbreviations listed here are valid for the described
system board.

ACPI

Advanced Configuration and Power Interface

ASR&R

Automatic Server Recovery and Restart

ATA

Advanced Technology Attachment

BBU

Battery Backup Unit

BIOS

Basic Input Output System

BMC

Baseboard Management Controller

CMOS

Complementary Metal Oxide Semiconductor

COM

COMmunication port

CRU

Customer Replaceable Unit

CSS

Customer Self Service

CPU

Central Processing Unit

30 Technical Manual D2785 (TX120 S2)

Abbreviations

DDR

Double Data Rate

DIMM

Dual In-line Memory Module

DIP

Dual In-line Package

DMI

Desktop Management Interface

DMA

Direct Memory Access

DRAM

Dynamic Random Access Memory

ECC

Error Correction Code

EEPROM

Electrical Erasable Programmable Read Only Memory

EPROM

Erasable Programmable Read Only Memory

EMRL

Embedded RAID Logic

ESD

Electrostatic Discharge

EVRD

Enterprise Voltage Regulator Down

FBD

Fully Buffered DIMM

HDD

Hard Disk Drive

D2785 (TX120 S2) Technical Manual 31

Abbreviations

HPC

Hot-plug Controller

ICE

In Circuit Emulation

IDE

Integrated (intelligent) Drive Electronics

IME

Integrated Mirror Enhanced

IOOP

Intelligent Organization Of PCI

IPMB

Intelligent Platform Management Bus

IPMI

Intelligent Platform Management Interface

iRMC

integrated Remote Management Controller

LAN

Local Area Network

LED

Light Emitting Diode

MCH

Memory Controller Hub

MPS

Multi Processor Specification

NMI

Non Maskable Interrupt

NOS

Network Operating System

32 Technical Manual D2785 (TX120 S2)

Abbreviations

NVRAM

Non Volatile RAM

ODD

Optical Disc Drive

OEM

Original Equipment Manufacturer

OHCI

Open Host Controller Interface

OS

Operating System

PCI

Peripheral Components Interconnect

PDA

Prefailure Detection and Analyzing

PIO

Programmed Input Output

PLD

Programmable Logic Device

POST

Power-On Self Test

PS(U)

Power Supply (Unit)

PWM

Puls Wide Modulation

PXE

Preboot eXecution Environment

RAID

Redundant Array of Inexpensive Disks

D2785 (TX120 S2) Technical Manual 33

Abbreviations

RAM

Random Access Memory

RSB

Remote Service Board

RST

ReSeT

RTC

Real Time Clock

SAS

Serial Attached SCSI

SATA

Serial ATA

SCSI

Small Computer Systems Interface

SDDC

Single Device Data Correction

SDRAM

Synchronous Dynamic Random Access Memory

SHDG

Server Hardware Design Guide

SHPC

Standard Hot Plug Controller

SMB

System Management Bus

SMM

Server Management Mode

SMP

Symmetrically Multi Processing

34 Technical Manual D2785 (TX120 S2)

Abbreviations

SSD

Solid-State Drive

TPM

Trusted Platform Module

UHCI

Unified Host Controller Interface

USB

Universal Serial Bus

VGA

Video Graphics Adapter

VRD

Voltage Regulator Down

VRM

Voltage Regulator Module

WfM

Wired for Management

WOL

Wake up On LAN