system board d2785 for tx120 s2 - fujitsu …manuals.ts.fujitsu.com/file/8417/d2785-thb-en.pdf ·...
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Copyright and TrademarksCopyright © 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 . . . . . . . . . . . . . . . . . . 203.6.1 System board . . . . . . . . . . . . . . . . . . . . . . . . . . 203.6.2 Connector panel . . . . . . . . . . . . . . . . . . . . . . . . . 223.6.3 Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4 Replacing the lithium battery . . . . . . . . . . . . . . . . . 27
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
D2785 (TX120 S2) Technical Manual 5
1 IntroductionThis 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 notesIn 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 configurations1 the PRIMERGY TX120 S2 is equipped with a power management system which, in energy-saving 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 ”environmen-tally 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 manufac-turer, 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 SolutionsRecycling CenterD-33106 Paderborn
Tel. +49 5251 8 18010
Fax +49 5251 8 18015
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 channel1
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
PCI s lot 1
PCI s lot 2
PCI s lot 3
PCI s lot 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
SYSFRONT PANEL
ATX 12V1
Upper
BPL I2C
CONN
JP7
JP6FRONT LAN
JP5
FAN1
SYS
USB
DRIVE
ATX PWR1
SATA
MLC1
SATA
JP2
JP3
USB
3/4/6
USB 7/8
LAN
Service
LANCOM1
VGA
iRMC S2
Battery
CPU
1 2
3
4
5
6
7
8
Intel
ICH9-R
Intel
82567
DIM
M1
A
DIM
M1
B
DIM
M2
A
DIM
M2
B
Intel
MCH
PC
I s
lot
1
PC
I s
lot
2
PC
I s
lot
3
PC
I s
lot
4
9
10
TP
M
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
Serv
ice
LA
NC
OM
1
VG
A
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 GbpsSteady 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
LANCOM1
VGA
iRMC S2
Battery
CPU
1
2
Intel
ICH9-R
Intel
82567
DIM
M1
A
DIM
M1
B
DIM
M2
A
DIM
M2
B
Intel
MCH
PC
I s
lot
1
PC
I s
lot
2
PC
I s
lot
3
PC
I s
lot
4
3
4
5
TP
M
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 repro-grams 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 batteryIn 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
AbbreviationsThe 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.
ACPIAdvanced Configuration and Power Interface
ASR&RAutomatic Server Recovery and Restart
ATAAdvanced Technology Attachment
BBUBattery Backup Unit
BIOSBasic Input Output System
BMCBaseboard Management Controller
CMOSComplementary Metal Oxide Semiconductor
COMCOMmunication port
CRUCustomer Replaceable Unit
CSSCustomer Self Service
CPUCentral Processing Unit
30 Technical Manual D2785 (TX120 S2)
Abbreviations
DDRDouble Data Rate
DIMMDual In-line Memory Module
DIPDual In-line Package
DMIDesktop Management Interface
DMADirect Memory Access
DRAMDynamic Random Access Memory
ECCError Correction Code
EEPROMElectrical Erasable Programmable Read Only Memory
EPROMErasable Programmable Read Only Memory
EMRLEmbedded RAID Logic
ESDElectrostatic Discharge
EVRDEnterprise Voltage Regulator Down
FBDFully Buffered DIMM
HDDHard Disk Drive
D2785 (TX120 S2) Technical Manual 31
Abbreviations
HPCHot-plug Controller
ICEIn Circuit Emulation
IDEIntegrated (intelligent) Drive Electronics
IMEIntegrated Mirror Enhanced
IOOPIntelligent Organization Of PCI
IPMBIntelligent Platform Management Bus
IPMIIntelligent Platform Management Interface
iRMCintegrated Remote Management Controller
LANLocal Area Network
LEDLight Emitting Diode
MCHMemory Controller Hub
MPSMulti Processor Specification
NMINon Maskable Interrupt
NOSNetwork Operating System
32 Technical Manual D2785 (TX120 S2)
Abbreviations
NVRAMNon Volatile RAM
ODDOptical Disc Drive
OEMOriginal Equipment Manufacturer
OHCIOpen Host Controller Interface
OSOperating System
PCIPeripheral Components Interconnect
PDAPrefailure Detection and Analyzing
PIOProgrammed Input Output
PLDProgrammable Logic Device
POSTPower-On Self Test
PS(U)Power Supply (Unit)
PWMPuls Wide Modulation
PXEPreboot eXecution Environment
RAIDRedundant Array of Inexpensive Disks
D2785 (TX120 S2) Technical Manual 33
Abbreviations
RAMRandom Access Memory
RSBRemote Service Board
RSTReSeT
RTCReal Time Clock
SASSerial Attached SCSI
SATASerial ATA
SCSISmall Computer Systems Interface
SDDCSingle Device Data Correction
SDRAMSynchronous Dynamic Random Access Memory
SHDGServer Hardware Design Guide
SHPCStandard Hot Plug Controller
SMBSystem Management Bus
SMMServer Management Mode
SMPSymmetrically Multi Processing