Dell OptiPlex 755 User Manual

DELL™

optipLEx™ 755

tEchnicaL guiDE book

insiDE thE optipLEx 755

TABLE OF CONTENTS

ovErviEw 3

Mini Tower Computer (MT) View 5

Desktop Computer (DT) View 6

Small Form Factor Computer (SFF) View 7

Ultra Small Form Factor Computer (USFF) View 8

MarkEting systEM configurations

Operating System, Chipset 9

Processor 10

Advanced System Manageability Modes, Deployment Mode Options 11

Memory 12

Drives and Removable Storage 13

System Board Connectors 14

System Board Connector Maximum Allowable Dimensions,
Graphics/Video Controller 15

External Ports/Connectors 20

Communications – Network Adapter (NIC) 21

Communications – Modem 23

Audio and Speakers, Keyboard and Mouse, Security 24

Service and Support, Software 25

DEtaiLED EnginEEring spEcifications

System Dimensions (Physical) 26

System Level Environmental and Operating Conditions 27

Power 28

Audio 29

Hard Drives 30

Optical Drives 34

BIOS Defaults 38

chassis EncLosurE anD vEntiLation rEquirEMEnts 41

rEguLatory coMpLiancE anD EnvironMEntaL

Acoustic Noise Emission Information 42

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

robust MainstrEaM
DEsktop DEsignED

to MEEt your
nEEDs, now anD
in thE futurE

The new Dell OptiPlex 755 offers a compelling, versatile solution that can help you meet evolving business needs with the right
technologies and services. Thanks to Dell’s innovative approach to scalable remote client management, the OptiPlex 755 offers
you a choice between several systems-management options. These options allow you to select an approach that’s appropriate
for your current infrastructure, while easily scaling to meet future needs. Options include:

• Widely installed ASF (Alert Standard Format) standards-based technology, which supports basic in- and out-of-band

hardware inventory, alerting, and power control

• Intel® Active Management Technology (Intel AMT), which adds encrypted communications to ASF requirements, and also

provides remote diagnosis and troubleshooting capabilities

• Intel® vPRO™ processor-based technology adds processor-specic security technologies to Intel AMT’s functionality

In addition, Dell continues to expand our Deployment Services — now featuring ImageDirect, a web-based tool that can enable you
to build and apply custom images for current and future systems. And because we know data security is a vital concern, the OptiPlex
755 offers optional RAID 1 support for real-time data-mirroring protection. Plus, those who elect for a full vPRO platform can enjoy

additional advanced security and remote remediation features.

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

aDvancED rEMotE ManagEMEnt: New capabilities that allow IT to have greater control

• Your choice of exible options — from ASF 2.0 to Intel AMT 3.0, and even full Intel vPro processor technology

• Standards-based management (DASH 1.0 and WS-MAN) help ensure simplicity and interoperability

• Dell Client Manager brings it all together in one management console

powEr EfficiEncy: Productivity and power savings in a proven, reliable design

• Dell’s Energy Smart is a unique approach to energy efcient computing which includes hardware and software, tool,

and partnerships.

• Energy Smart hardware and software includes Intel® Core™ 2 Duo processors, efcient management power settings and
remote power policy management, available 80+ power supplies and ENERGY STAR® 4.0 congurations

• Dell’s online Energy Calculator indicates potential savings of up to 78% by choosing the most efcient congurations

• Dell is working alongside industry leaders and standards organizations worldwide to help drive revolutionary change

sMart sEcurity: Strategic, comprehensive endpoint solutions for all types of businesses

• Intel vPro technology helps simplify asset inventory, isolation of virus-infected PCs, security patch deployment and more

• RAID 1 support helps keep data intact and accessible via real-time redundancy

• Built-in TPM 1.2 helps protect the network from unauthorized access, while enabling multi-factor authentication via
optional Smart Card Reader and/or ngerprint reader

DELL DEpLoyMEnt sErvicEs: Image management, customization and deployment made easy

• Specic provisioning and pre-congured setting options for iAMT and Intel vPro technology customers

• ImageDirect allows you to create, manage and load your custom images to Dell client systems

• Microsoft® Windows Vista® Assessment and Migration options help streamline and optimize your deployment processes

SIMPLY PUT:

rEMotE ManagEMEnt, sMart
sEcurity, anD custoMizED
DEpLoyMEnts hELp siMpLify

your opErations

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

Mini towEr coMputEr (Mt) viEw

1

2

3

5

9

11

10

4

6

7

8

FRONT VIEW

5.25-inch drive bay

1

5.25-inch drive bay

2

3.5-inch drive bay

3

USB 2.0 connectors (2)

4

LAN indicator light

5

diagnostic lights

6

power button

7

power light

8

hard drive activity light

9

headphone connector

10

microphone connector

11

6

5

4

7

1

3

8

2

BACK VIEW

1

2

3

4

5

6

7

8

card slots

serial port

power connector

voltage selection switch

padlock ring

cover release latch

parallel port

VGA port

1

2

22

21

20

19

18

17

14

16

26

27

28

29

30

15

4x USB 2.0 ports

1 - RJ 45 network port

2 - USB 2.0 ports

stereo in/microphone

stereo out

12

13

24

23

3

6

7

10

11

28
27

26

25

4

7

9

29
30

SYSTEM BOARD COMPONENTS

speaker connector (INT_SPKR)

1

fan (FAN_CPU)

2

processor connector (CPU)

5

8

3

processor power connector (12VPOWER)

4

memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4)

5

password jumper (PSWD)

6

SATA drive connectors (SATA0, SATA1, SATA2, SATA3)

7

front-panel connector (FRONTPANEL)

8

power connector (POWER)

9

external SATA connector (eSATA)

10

internal USB (INT_USB)

11

RTC reset jumper (RTCRST)

12

intrusion switch connector (INTRUDER)

13

battery socket (BATTERY)

14

PCI Express x16 connector (SLOT1)

15

PCI Express x1 connector (SLOT4)

16

PCI connector (SLOT2)

17

PCI connector (SLOT3)

18

serial connector (SERIAL2)

19

system board speaker (BEEP)

20

aux power LED (aux_LED)

21

oppy connector (DSKT)

22

VGA connector

23

parallel port

24

serial port

25

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

DEsktop coMputEr (Dt) viEw

10

FRONT VIEW

USB 2.0 connectors (2)

1

LAN indicator light

2

power button

3

Dell badge

4

power light

5

diagnostic lights

6

1

22

21

19

18

17

16

15

11

20

14

1

3

2

8

6

7

9

13

11

12

4

5

hard drive activity light

7

headphone connector

8

microphone connector

9

3.5-inch drive bay

10

5.25-inch drive bay

11

3

2

5

6

9

10

6

8

SYSTEM BOARD COMPONENTS

4

7

1

internal speaker (INT_SPKR)

1

processor connector (CPU)

2

processor power connector (12VPOWER)

3

memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4)

4

password jumper (PSWD)

5

SATA connectors (SATA0, SATA1, SATA2)

6

front-panel connector (FRONTPANEL)

7

power connector (POWER)

8

external SATA connector (eSATA)

9

internal USB (INT_USB)

10

RTC reset jumper (RTCRST)

11

intrusion switch connector (INTRUDER)

12

battery socket (BATTERY)

13

PCI Express x16 connector (SLOT1)

14

PCI connector (SLOT2)

15

PCI connector (SLOT3)

16

riser connector (uses PCI-E port/SLOT1 and PCI port/SLOT2)

17

serial connector (SERIAL2)

18

system board speaker (BEEP)

19

aux power LED (aux_LED)

20

oppy connector (DSKT)

21

fan connector (FAN_CPU)

22

7

8

2

BACK VIEW

1

2

3

4

5

6

7

8

card slots

serial port

power connector

voltage selection switch

padlock ring

cover-release latch

parallel port

VGA port

4

5

3

6

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

sMaLL forM factor coMputEr (sff) viEw

FRONT VIEW

USB 2.0 connectors (2)

1

power button

2

Dell badge

3

LAN indicator light

4

diagnostic lights

5

hard drive activity light

6

1

21

20

19

18

17

16

15

11

2

10

14

13

1

8

9

12

3

7

power light

7

headphone connector

8

microphone connector

9

3.5-inch drive bay

10

5.25-inch drive bay

11

2

5

10

9

11

4

5

6

3

4

6

6

8

SYSTEM BOARD COMPONENTS

7

1

internal speaker connector (INT_SPKR)

1

processor connector (CPU)

2

processor power connector (12VPOWER)

3

memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4)

4

password jumper (PSWD)

5

SATA connectors (SATA0, SATA1)

6

front-panel connector (FRONTPANEL)

7

power connector (POWER)

8

fan connector (FAN_HDD)

9

eSATA connector (eSATA)

10

internal USB connector (INT_USB)

11

RTC reset jumper (RTCRST)

12

intrusion switch connector (INTRUDER)

13

battery socket (BATTERY)

14

PCI Express x16 connector (SLOT1)

15

PCI connector (SLOT2)

16

serial connector (SERIAL2)

17

system board speaker (BEEP)

18

aux power LED (aux_LED)

19

oppy drive connector (DSKT)

20

fan connector (FAN_CPU)

21

7

8

2

BACK VIEW

1

2

3

4

5

6

7

8

card slots

serial port

power connector

voltage selection switch

padlock ring

cover-release latch

parallel port

VGA port

4

5

3

6

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

uLtra sMaLL forM factor coMputEr (usff) viEw

2

1

9

FRONT VIEW

1

2

3

4

5

3

USB connectors (2)

headphone connector

microphone connector

power light

power button

5

4

8

7

6

7

8

9

6

vents

module bay

hard drive access light

vents

5

BACK VIEW

1

2

3

4

5

6

7

2 3

4

5

1

14

13

12

11

15

7

8

9

10

19

16

18

17

22

20

21

SYSTEM BOARD COMPONENTS

fan connector (FAN_FRONT)

1

internal speaker connector (INT_SPKR)

2

system board speaker (BEEP)

3

6

channel B memory connector (DIMM_2)

4

channel A memory connector (DIMM_1)

5

SATA data cable connector (SATA0)

6

battery (BATT)

7

password jumper (PSWD)

8

hard drive fan connector (FAN_HDD)

9

clear CMOS jumper (RTCRST)

10

hard drive power connector (SATA_PWR)

11

fan connector (FAN_REAR)

12

intrusion switch connector (INTRUDER)

13

processor (CPU)

14

DVI-1 connector

15

parallel port

16

serial port

17

1- RJ 45 network connector

18

2 - USB 2.0 connectors

19

3 - USB 2.0 ports

20

line-out connector

21

line-in microphone connector

22

2

3

1

7

4

6

diagnostic lights

computer cover release knob

parallel port

power connector

vents

serial port

DVH port

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

MarkEting systEM configurations

Oerings may vary by region. For more information regarding the configuration of your computer, click
Start Help and Support and select the option to view information about your computer.

opErating systEM

One of the following Operating Systems will be preinstalled.

MT DT SFF USFF

Windows Vista® Operating System

Windows XP® Operating System

Other

OS Media Support

chipsEt

Chipset

Non-volatile Memory on Chipset

BIOS Conguration SPI (serial peripheral interface)

TPM 1.2 Security Device (Trusted Platform Module)

NIC EEPROM

Windows Vista® Ultimate 32-bit, Windows Vista® Business 32- and 64-bit,

Windows Vista® Home Basic 32 bit

Windows® XP Professional SP2, Windows® XP Home Edition SP2

(all 32-bit only)

FreeDOS for (n-series), Red Flag Linux (China only)

✓ ✓ ✓ ✓

MT DT SFF USFF

Intel® Q35 Express Chipset (ICH9DO)

32Mbit (4MB) located at SPI_FLASH on chipset

16KB located at TPM1P2 on chipset

LOM conguration contained within SPI_FLASH – no dedicated LOM EEPROM

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

procEssor

Global Standard Products (GSP) are a subset of Dell’s relationship products that are managed for availability and synchronized

transitions on a worldwide basis. They ensure the same platform is available for purchase globally. This allows customers to reduce
the number of configurations managed on a worldwide basis, thereby reducing their costs. They also enable companies to implement

global IT standards by locking in specic product congurations worldwide. The following GSP processors identied below will be made

available to Dell customers.

Processor numbers are not a measure of performance.

PROCESSOR (SPEED, CACHE, FSB)

Intel® Core™ 2 Quad with Intel VT, Enhanced Intel SpeedStep Technology, Intel 64 and Execute Disable Bit

Intel Core 2 Quad Q6700 Processor (2.66GHz, 8MB L2 cache, 1066MHz FSB, VT)

Intel Core 2 Quad Q6600 Processor (2.4GHz, 8MB L2 cache, 1066MHz FSB, VT)

Intel® Core 2 Duo with Intel vPro Technology, Intel VT, Intel TXT, Enhanced Intel SpeedStep Technology, Intel 64 and Execute Disable Bit

Intel Core 2 Duo E6850 Processor (3.0GHz, 4MB L2 cache, 1333MHz FSB, vPro, VT)

Intel Core 2 Duo E6750 Processor (2.66GHz, 4MB L2 cache, 1333MHz FSB, vPro, VT)

Intel Core 2 Duo E6550 Processor (2.33GHz, 4MB L2 cache, 1333MHz FSB, vPro, VT)

Intel® Core 2 Duo with Enhanced Intel SpeedStep Technology, Intel 6.4 and Execute Disable Bit

Intel Core 2 Duo E4600 Processor (2.4GHz, 2MB L2 cache, 800MHz FSB)

Intel Core 2 Duo E4500 Processor (2.2GHz, 2MB L2 cache, 800MHz FSB)

Intel Core 2 Duo E4400 Processor (2.0GHz, 2MB L2 cache, 800MHz FSB)

Intel Core 2 Duo E2180 Processor (2.0GHz, 1MB L2 cache, 800MHz FSB)

Intel Core 2 Duo E2160 Processor (1.8GHz, 1MB L2 cache, 800MHz FSB)

MT DT SFF USFF

✓ ✓ ✓

✓ ✓ ✓

X-GSP X-GSP X-GSP X-GSP

X-GSP X-GSP X-GSP X-GSP

X-GSP X-GSP X-GSP X-GSP

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

Intel Core 2 Duo E2140 Processor (1.6GHz, 1MB L2 cache, 800MHz FSB)

Intel® Celeron with Execute Disable Bit

Intel Celeron 440 Processor (2.0GHz, 512K L2 cache, 800MHz FSB)

Intel Celeron 430 Processor (2.0GHz, 512K L2 cache, 800MHz FSB)

version 1.0 10

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

10

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

aDvancED systEM ManagEabiLity MoDEs

MT DT SFF USFF

Secure Advanced Client Systems Management1

(w/ vPro)

Advanced Client Systems Management

(w/ iAMT)

Basic Client Systems Management (w/ ASF)

Client Systems Management Disabled

1

Secure Advanced Client Systems Management requires Intel Core 2 Duo or Core 2 Quad Processors in addition to iAMT.

DEpLoyMEnt MoDE options

Requires Secure Advanced Client Systems Management (with/vPro) or Advanced Client Systems Management (with iAMT) modes only.

Deployment options to enable easy deployment of systems management options.

One-Touch Provisioning Support

TLS Encryption Disabled

Legacy ASF Setting for iAMT

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

MT DT SFF USFF

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

MEMory

Your computer supports a maximum of 8GB of memory when you use four 2GB DIMMs; however, 32-bit operating systems, such as the
32-bit version of Microsoft® Windows® XP, can only use a maximum of 4GB of address space. Moreover, certain components within the
computer require address space in the 4GB range. Any address space reserved for these components cannot be used by computer
memory; therefore, the amount of memory available to the operating system is less than 4GB.

The entire 8GB memory range is available to 64-bit operating systems.

Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not installed

in matched pairs, the computer will continue to operate, but with a slight reduction in performance.

MT DT SFF USFF

DDR2 Synch DRAM Non-ECC Memory 667MHz or 800MHz speeds

DIMM Slots

DIMM Capacities

Minimum Memory

Maximum Memory with 667MHz Speed Memory

Maximum Memory with 800MHz Speed Memory

Configurations:

800MHz Memory Configurations

4GB1 DDR2 Non-ECC SDRAM, 800MHz,
(2 DIMM)

4GB1 DDR2 Non-ECC SDRAM, 800MHz,
(4 DIMM)

2GB DDR2 Non-ECC SDRAM, 800MHz,
(1DIMM)

2GB DDR2 Non-ECC SDRAM, 800MHz,
(2 DIMM)

1GB DDR2 Non-ECC SDRAM, 800MHz,
(1 DIMM)

667MHz Memory Configurations

4GB1 DDR2 Non-ECC SDRAM, 667MHz,
(4 DIMM)

4GB1 DDR2 Non-ECC SDRAM, 667MHz,
(2 DIMM)

3GB DDR2 Non-ECC SDRAM, 667MHz,
(4 DIMM)

2GB DDR2 Non-ECC SDRAM, 667MHz,
(4 DIMM)

2GB DDR2 Non-ECC SDRAM, 667MHz,
(2 DIMM)

1GB DDR2 Non-ECC SDRAM, 667MHz,
(2 DIMM)

1GB DDR2 Non-ECC SDRAM, 667MHz,
(1 DIMM)

512MB DDR2 Non-ECC SDRAM, 667MHz,
(1 DIMM)

1

The total amount of available memory will be less, depending on actual system configuration.

4 4 4 2

Up to 2GB Up to 2GB Up to 2GB Up to 2GB

512MB 512MB 512MB 512MB

1

8GB

1

8GB

✓ ✓ ✓ ✓

✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓

✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

8GB

8GB

1

1

8GB

8GB

1

1

4GB

4GB

1

1

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

DrivEs anD rEMovabLE storagE

Bays:

MT DT SFF USFF

3.5-inch bay Externally Accessible

3.5-inch bay Internally Accessible

5.25-inch bay

Hard Drives Supported

1

Optical Drives Supported

Interface:

SATA (number of connectors - includes one dedicated

eSATA on MT, DT & SFF)

Floppy/Diskette

eSATA (requires additional bracket)

Hard Drive: Size, type, speed, RPM

80GB2 SATA 10K RPM HDD

250GB2 SATA 7200 RPM HDD

160GB2 High Reliability SATA 7200 RPM HDD

160GB2 SATA 7200 RPM HDD

80GB2 SATA 7200 RPM HDD

RAID 0 Enhanced Performance:

(includes two matching capacity/speed hard drives)

80GB2 SATA 10K RPM HDD

160GB2 SATA 7200 RPM HDD

320B2 SATA 7200 RPM HDD

500GB2 SATA 7200 RPM HDD

RAID 1 Data Protection:

(includes two matching capacity/speed hard drives)

80GB2 SATA 10K RPM HDD

1 1* 1 (slimline) D/bay module

2 1* 1 1

2 1 1 (slimline)

2 2 1 1

2 1 1 D/bay module

5 4 3 1

1 1 1

1 1 1

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓

✓ ✓

✓ ✓

✓ ✓

3

3

3

3

✓ ✓

250GB2 SATA 7200 RPM HDD

160GB2 SATA 7200 RPM HDD

80GB2 SATA 7200 RPM HDD

1

This only pertains to drives physically contained within the chassis and does not refer to HDDs attached via eSATA (including port multiplier), USB or optional 1394.

2

For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

3

RAID 1 in DT chassis restricted to Western Digital and Samsung HDDs.

* Card length can be longer than standard Half-Length Card but cannot be a Full-Length Card.

version 1.0 13

✓ ✓

✓ ✓

✓ ✓

13

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

DrivEs anD rEMovabLE storagE, cont.

MT DT SFF USFF

Optical Drive:

DVD+/-RW

DVD-ROM

Combo Drive CD-RW

CD-ROM

16x SATA 8x EIDE 8x EIDE

16x SATA 8x EIDE 8x EIDE

48x/32x/48x/16x SATA 24x/24x/24x EIDE 24x/24x/24x EIDE

48x SATA 24x EIDE 24x EIDE

Floppy Diskette Drive:

Floppy Drive

1.44MB 1.44MB (slimline) 1.44MB (D/Bay)

Media Card Reader: (uses Externally Accessible 3.5-inch bay)

Dell 19-in-1 Media Card Reader

✓ ✓ ✓

systEM boarD connEctors

See Detailed Engineering Specications for maximum card dimensions support.

SFF requires

a slimline

optical drive

USFF requires

a D-module

Slimline drive

PCI Slot(s):

PCIe x16 Slot:

PCIe x1 Slot:

Flexbay (used for Media Card Reader)

Serial ATA (SATA) (Includes eSATA Connector)

MT DT SFF USFF

2 2 1

1 1 1

1

1 1 1

5 4 3 1

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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

systEM boarD connEctor MaxiMuM aLLowabLE DiMEnsions

MT DT SFF USFF

PCI Slot(s) Dimensions: (HxL)

Height i n c h e s /c e n t i m e t e r s

Length i n c h e s /c e n t i m e t e r s

PCIe x16 Slot Dimensions: (HxL)

Height i n c h e s /c e n t i m e t e r s

Length i n c h e s /c e n t i m e t e r s

PCIe x1 Slot Dimensions: (HxL)

Height i n c h e s /c e n t i m e t e r s

Length i n c h e s /c e n t i m e t e r s

Combo Full Height Riser with 1 PCI and
1 PCIe connector (HxL)

Height i n c h e s /c e n t i m e t e r s

Length i n c h e s /c e n t i m e t e r s

Dual Full Height Riser with 2 PCI connectors
(HxL)

Height i n c h e s /c e n t i m e t e r s

2 2 1

4.376 / 11.115 2.731 / 6.89

6.6 / 16.765* 6.6 / 16.765

1 1 1

4.376 / 11.115 2.731 / 6.89

6.6 / 16.765* 6.6 / 16.765

1

4.376 / 11.115

6.6 / 16.765

1 /1

4.376 / 11.115

6.9 / 17.53**

2

4.376 / 11.115

Length i n c h e s /c e n t i m e t e r s

* Card length can be longer than standard Half-Length Card but cannot be a Full-Length Card.

** 6.9/17.53 in/cm is longer than the standard Half-Length Card. Risers replace 1 PCl slot and 1 PCle slot on DT system board.

6.9 / 17.53**

graphics/viDEo controLLEr

MT supports full height card, DT supports low prole card or full height card with optional riser. SFF supports low prole card.

MT DT SFF USFF

Integrated Intel® Graphics Media
Accelerator 3100*

Integrated on system board

Enhanced Graphic/Video Options

DVI (Digital)

* Signicant memory may be used to support graphics, depending on system memory size and other factors.

Optional full height or low prole Add-2 card

Native DVI
Connector

version 1.0 15

15

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

graphics/viDEo controLLEr, cont.

Enhanced Graphic/Video Options , Cont.

MT DT SFF USFF

128MB ATI Radeon X1300* with DVI and
TV Out

256MB ATI Radeon™ HD 2400 PRO* with
DVI and TV Out

256MB ATI Radeon™ HD 2400 XT* Dual
Monitor with VGA cable and TV Out

256MB ATI Radeon™ HD 2400 XT* Dual
Monitor with DVI and VGA cables and TV Out

* Signicant system memory may be used to support graphics, depending on system memory size and other factors.

INTEGRATED INTEL GRAPHICS
MEDIA ACCELERATOR 3100

*

Optional full height or low profile card

Optional full height or low profile card

Optional full height or low profile card

Optional full height or low profile card

MT DT SFF USFF

Bus Type

GPU Core Clock

Frame Buffer Memory Size

350 MHz Integrated 24 bit RAMDAC

Up to 256MB of shared system memory*

Maximum Power Consumption

Overlay Planes

Maximum Color Depth

Integrated

9.63 W

Yes

32 bit

Maximum Vertical Refresh Rate

Multiple Display Support

Operating Systems Graphics/ Video API Support

Supported Resolutions and Max Refresh Rates
(Hz) (Note: analog and/or digital)

External Connectors

Dimensions i n c h e s /c e n t i m e t e r s (L x H)

Yes, with optional DVI Add-2 card

OpenGL® 1.4/DirectX 9.0c

Supports at panels up to 1920x1200 @ 60 Hz or

digital CRT/HDTV at 1400x1050 @ 85 Hz

VGA DVI

85 Hz

Up to 2048x1566 @ 75 Hz

N/A

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Altitude Range

* Signicant system memory may be used to support graphics, depending on system memory size and other factors.

version 1.0 16

0° to 106° C (32° to 223° F)

20% to 80% (non-condensing)

–15.2 to 3048 m (–50 to 10,000 ft)

16

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

DVI (DIGITAL) ADD-2 CARD

Bus Type

Maximum Supported Resolution

Dimensions of Full Height Card

i n c h e s /c e n t i m e t e r s (L x H)

Dimensions of Low Profile Card

i n c h e s /c e n t i m e t e r s (L x H)

Maximum Power Consumption

External Connectors

128MB ATI RADEON X1300
WITH DVI AND TV OUT

Bus Type

GPU Core Clock

Frame Buffer Memory (onboard) Size and Speed

MT DT SFF USFF

sDVO

Up to 2048x1566 @ 75 Hz

Supports at panels up to 1920x1200 @ 60 Hz or digital CRT/

HDTV at 1400x1050 @ 85 Hz

5.75x2.75in/

14.61x6.99cm

5.75x2.75in/

14.61x6.99cm

DVI

MT DT SFF USFF

PCIEx16

400Mhz

128MB 400Mhz

Maximum Power Consumption

Overlay Planes

Maximum Color Depth

Maximum Vertical Refresh Rate

Multiple Display Support

Operating Systems Graphics/ Video API Support

Supported Resolutions and Max Refresh Rates
(Hz) (Note: analog and/or digital)

External Connectors

Dimensions of Full Height Card

i n c h e s /c e n t i m e t e r s (L x H)

Dimensions of Low Profile Card

i n c h e s /c e n t i m e t e r s (L x H)

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

20W

Yes

32-bit

85Hz

No

D3D and Open GL

Max : 1920x1440/32bpp @ 75Hz

Min : 640x480/8bpp @ 60Hz

DVI-D and S-video with Composite

6.6x4.72in/167.64x120mm

6.6x3.35in/167.64x85mm

50°-122°F (10°-50° C)

5-90% RH (non-condensing)

®

Altitude Range

version 1.0 17

0-20,000 ft.

17

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

graphics/viDEo controLLEr, cont.

256MB ATI RADEON™ HD 2400 PRO
WITH DVI AND TV OUT

Bus Type

GPU Core Clock

Frame Buffer Memory (onboard) Size and Speed

Maximum Power Consumption

Overlay Planes

Maximum Color Depth

Maximum Vertical Refresh Rate

Multiple Display Support

Operating Systems Graphics/ Video API Support

Supported Resolutions and Max Refresh Rates
(Hz) (Note: analog and/or digital)

External Connectors

Dimensions of Full Height Card

i n c h e s /c e n t i m e t e r s (L x H)

Dimensions of Low Profile Card

i n c h e s /c e n t i m e t e r s (L x H)

MT DT SFF USFF

PCIEx16

400MHz

256MB 500Mhz

21W

Yes

32-bit

85Hz

No

D3D and Open GL

Max : 1920x1440/32bpp @ 75Hz

Min : 640x480/8bpp @ 60Hz

DVI-D and S-video

6.6x4.72in/167.64x120mm

6.6x3.35in/167.64x85mm

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Altitude Range

version 1.0 18

50°-122°F (10°-50° C)

5-90% RH (non-condensing)

0-20,000 ft.

18

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

graphics/viDEo controLLEr, cont.

256MB ATI RADEON™ HD 2400 XT DUAL
MONITOR WITH DVI/VGA VIA CABLES
AND TV OUT

Bus Type

MT DT SFF USFF

PCIEx16

GPU Core Clock

Frame Buffer Memory (onboard) Size and Speed

Maximum Power Consumption

Overlay Planes

Maximum Color Depth

Maximum Vertical Refresh Rate

Multiple Display Support

Operating Systems Graphics/ Video API Support

Supported Resolutions and Max Refresh Rates
(Hz) (Note: analog and/or digital)

External Connectors

Dimensions of Full Height Card

i n c h e s /c e n t i m e t e r s (L x H)

Dimensions of Low Profile Card

i n c h e s /c e n t i m e t e r s (L x H)

Environmental Operating Conditions for Graphics Cards:

600Mhz

256MB 500Mhz

25W

Yes

32-bit

85Hz

2

D3D, Open GL

Max : 1920x1440/32bpp @ 75Hz

Min : 640x480/8bpp @ 60Hz

DMS-59

6.6x4.72in/167.64x120mm

6.6x3.35in/167.64x85mm

Operating Temperature Range

Relative Humidity Range

Altitude Range

version 1.0 19

50°-122°F (10°-50° C)

5-90% RH (non-condensing)

0-20,000 ft.

19

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

ExtErnaL ports/connEctors

MT supports full height cards, DT supports low prole cards or full height cards with optional riser. SFF supports low prole cards.

See chassis diagrams section for
port/connector locations

MT DT SFF USFF

USB 2.0 (totals)

Front

Back

Internal

Serial

PS/2 and 1 additional Serial

(low profile bracket includes PS/2 dongle)

eSATA Bracket

Parallel

Network Connector (RJ-45)

1394 Controller

Video:

VGA

DVI

Audio:

10 7

2 2

6 5

2 0

One rear

Optional full height or low profile bracket

Optional full height or low profile bracket

One rear

One rear

Optional full height or low profile card

One rear

Optional full height or low prole Add-2 card One rear

Microphone-in

Headphone

Stereo line-in

Speakers line out

One minijack front

One minijack front

One minijack front

One minijack rear

Risers:

(replaces 1 PCI slot and 1 PCIe slot on DT system board)

Combo full height riser with 1 PCI and
1 PCIe connector

Dual full height riser with 2 PCI connectors

version 1.0 20

✓

✓

20

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

coMMunications - nEtwork aDaptEr (nic)

MT supports full height card, DT supports low prole card or full height card with optional riser. SFF supports low prole card.

MT DT SFF USFF

Intel® 82566DM Gigabit LAN 10/100/1000

(Remote Wake Up, PXE, and Intel Active Management
Technology support)

Broadcom NetXtreme 10/100/1000 PCIe
Gigabit Networking Card

INTEGRATED INTEL 82566DM GIGABIT LAN

External Connector Type

Data Rates Supported

Controller Details

Controller bus architecture

Integrated memory

Data transfer mode

Power consumption

(full operation per data rate connection speed)

Power consumption (standby operation)

IEEE Standards Compliance

Integrated on system board

Supports

full height

Intel Gigabit LAN Connect Interface (GLCI) and LAN Connect Interface (LCI)

Low profile

card or full

height card with

optional riser

RJ45

10/100/1000 Mbps

N/A

N/A

1000 Mbps: 2468 mW

100 Mbps: 772 mW

10 Mbps: 607 mW

No Link (no wake): 40 mW

10 Mbps Idle (wake): 271 mW

100 Mbps Idle (wake): 756 mW

802.3ab

Supports low

profile card

Hardware Certifications

Boot ROM Support

EEPROM (located in SPI)

N/A

Network Transfer Mode

Network Transfer Rate

10BASE-T (full-duplex) 20 Mbps
100BASE-TX (half-duplex) 100 Mbps
100BASE-TX (full-duplex) 200 Mbps

Full duplex at 10, 100, or 1000 Mbps and

half duplex at 10 or 100 Mbps.

1000BASE-T (full-duplex) 2000 Mbps

Environmental

Operating temperature

Operating humidity

Operating System Driver Support

Windows® XP, Windows Vista® Ultimate, Windows Vista® Business 32 bit/64 bit,

Manageability

Management Capabilities Alerting

version 1.0 21

0° C to 70° C (32° F to 158° F)

20% to 80% (non-condensing)

Windows Vista Home Basic, Linux

WOL, PXE

ASF2.0, AMT 3.0

21

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

coMMunications - nEtwork aDaptEr (nic), cont.

BROADCOM NETXTREME 10/100/1000
PCIE GIGABIT NETWORKING CARD

MT DT SFF USFF

Connector Type

Data Rates Supported

Controller Details

Controller bus architecture

Integrated memory

Data transfer mode

Power consumption

(full operation per data rate connection speed)

Power consumption (standby operation)

IEEE Standards Compliance

Hardware Certifications

Boot ROM Support

Network Transfer Mode

Network Transfer Rate

RJ-45

10/100/1000 Mbps Half/full duplex

PCIe c1.0a x1

64KBytes RX, 8KBytes TX

Bus-Master DMA

2.84W (860mA @ +3.3V)

Less than 300mW

802.3, 802.2, 802.3x, 802.1p

FCC B, VCCI B, CE

No

Full Duplex/Half Dup[lex

10BASE-T (full-duplex) 20 Mbps Max*

100BASE-TX (half-duplex) 100 Mbps Max*

100BASE-TX (full-duplex) 200 MbpsMax*

1000BASE-T (full-duplex) 2000 Mbps Max*

* Depends on the system environment.

Environmental

Operating temperature

Operating humidity

Operating System Driver Support

Windows® XP, Windows Vista® Ultimate, Windows Vista®

Business 32 bit/64 bit, Windows Vista Home Basic, Linux

Manageability

Management Capabilities Alerting

version 1.0 22

0° C to 55° C (32° F - 131° F)

5% ~ 85% (non-condensing)

WOL, PXE2.1, ACPI

None

22

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

coMMunications – MoDEM

MT supports full height card, DT supports low prole card or full height card with optional riser. SFF supports low prole card.

V.92 DATA/FAX
CONTROLLERLESS MODEM

Bus

External Connector

Data Transmission

Data Speeds

Data Standards

Fax Speeds

Fax Mode Capabilities

Error Correction and Data Compression

Power Management

Upgradeability

Video

MT DT SFF USFF

Supports

full height

PCM - Pulse Coded Modulation (V.92/V.90)

TCM - Trellis Coded Modulation (V.90/V.34/V.32 bis/V.32)

56kbps receive, 48kbps transmit

ITU V.92/V.90, V.34/V.32 bis/V.32

2-wire, half-duplex, synchronous

V.44, V.42, V.42bis, MNP 2-4, MNP 5

V.80 Synchronous Access Mode (SAM) can be

supported by software applications (not driver)

Low profile

card or full

height card with

optional riser

PCI

RJ-11

14.4kbps

WOR (wake on ring) capable

Driver upgradeable

Supports low

profile card

Operating Temperature

Operating Humidity

Operating System Support

Operating System Driver Support

Power Requirements

Chipset

Dimensions of Full Height Card

i n c h e s /c e n t i m e t e r s (L X H)

Dimensions of Low Profile Card

i n c h e s /c e n t i m e t e r s (L X H)

0° C-50° C (32° F-122° F)

45° C (113° F) 90% max

Vista 32/64, Windows XP 32/64

Vista 32/64, Windows XP 32/64

+3.0V~+3.6V, 116.6mW max

Conexant SmartHSFs/LF (CX11256 & CX20493)

L: 5.25in/13.325cm H: 4.73in/12.002cm

L: 5.26in/13.366cm H: 3.12in/7.923cm

version 1.0 23

23

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

auDio anD spEakErs

MT DT SFF USFF

ADI 1984 High Definition Audio

Internal Chassis Speaker

Dell A225 Speakers

Dell A525 Speakers

Dell AS501 Flat Panel Speakers (Sound Bar)

Dell AS501PA Flat Panel Speakers (Sound Bar)

kEyboarD anD MousE

Dell USB Entry QuietKey Keyboard

Dell USB Enhanced Multimedia Keyboard

Dell Smart Card USB Keyboard

Dell Bluetooth Keyboard and Mouse

Dell USB Entry 2-Button Scroll Mouse

Integrated on system board

Optional

Optional

Optional

Optional

Optional

MT DT SFF USFF

Optional

Optional

Optional

Optional

Optional

Dell USB Optical 2-Button Scroll Mouse

Dell USB Premium 5-Button Mouse

Dell Palmrest

Dell Logo Mouse Pad

Optional

Optional

Optional

Optional

sEcurity

MT DT SFF USFF

Trusted Platform Module (TPM) 1.2

Chassis Intrusion Switch

Dell USB External Biometric Fingerprint Reader

Chassis Lock Slot

version 1.0 24

Integrated on system board

Optional

Optional

Standard

24

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

sErvicE anD support

For more details on Dell Service Plans please to go to www.dell.com/service/service_plans/

MT DT SFF USFF

3-Year Limited Warranty1 (3-3-0)

3-Year Next Business Day On-site2 Service
(3-3-3)

Gold Tech Support

1

For a copy of limited warranty, write Dell USA L.P., Attn: Warranties, One Dell Way, Round Rock, TX 78682 or visit www.dell.com/warranty.

2

May be provided by third-party. Technician dispatched, if necessary, following phone-based troubleshooting. Availability varies. See dell.com/servicecontracts for details.

Standard

Optional

Optional

softwarE

MT DT SFF USFF

Dell Client Manager Standard

Wave EMBASSY® Trust Suite

Norton Internet Security

McAfee Security Center

Available via Dell.com

Standard

90-Day Trial or Optional Subscription

90-Day Trial or Optional Subscription

version 1.0 25

25

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

DEtaiLED EnginEEring spEcifications

systEM DiMEnsions (physicaL)

System Weight1 and Shipping Weight1 is based on a typical conguration and may vary based on PC conguration. A typical conguration

includes: integrated graphics, one hard drive, one optical drive, and one diskette drive.

MT DT SFF USFF

Chassis Volume l i t e r s

Chassis Weight1 p o u n d s /k i l o g r a m s

33.0 16.0 10.7 6.0

25.8 / 11.70 18.2 / 8.26 15 / 6.80 10 / 4.54

Chassis Dimensions: (HxWxD)

Height i n c h e s /c e n t i m e t e r s

Width i n c h e s /c e n t i m e t e r s

Depth i n c h e s /c e n t i m e t e r s

Shipping Weight1 p o u n d s /k i l o g r a m s
(includes packaging materials)

Packaging Parameters (HxWxD)

2

Height i n c h e s /c e n t i m e t e r s

Width i n c h e s /c e n t i m e t e r s

Depth i n c h e s /c e n t i m e t e r s

1

Weights are approximates and may change based on system conguration and included accessories.

2

Dimensions are DAO specic. Each region has unique packing.

16.3 / 41.4 4.5 / 11.4 3.65 / 9.26 10.3 / 26.4

7.3 / 18.5 15.7 / 39.9 12.4 / 31.4 3.5 / 8.9

17.3 / 43.9 13.9 / 35.3 13.4 / 34 9.9 / 25.3

43.5 / 19.73 28 / 12.7 21.3 / 9.66 26.1 / 11.84

22.38 / 56.85 20.63 / 52.4 20.88 / 50.04 19.88 / 50.5

22.25 / 56.52 20.31 / 51.59 19.38 / 49.23 17.5 / 44.45

14.25 / 36.2 11.75 / 29.85 10.63 / 27 10.44 / 26.52

version 1.0 26

26

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

systEM LEvEL EnvironMEntaL anD opErating conDitions

Temperature

MT DT SFF USFF

Operating

Non-Operating (Storage)

Relative Humidity

Maximum Vibration

Operating

Non-Operating (Storage)

Maximum Shock

Operating

Non-Operating (Storage)

Maximum Altitude

Operating

Non-Operating (Storage)

10° to 35° C (50° to 95° F)

-40° to 65° C (-40° to -149° F)

20% to 80% (non-condensing)

0.25 G at 3 to 200 Hz at 0.5 octave/min

0.5 G at 3 to 200 Hz at 1 octave/min

Bottom half-sine pulse with a change in velocity of 50.8 cm/sec (20 inches/sec)

27-G faired square wave with a velocity change of 508 cm/sec (200 inches/sec)

–15.2 to 3,048 m (–50 to 10,000 ft)

–15.2 to 10,668 m (–50 to 35,000 ft)

version 1.0 27

27

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

powEr

MT DT SFF USFF

Power Supply Wattage

AC Input Voltage Range

AC Input Current

(low ac range/high AC range)

AC Input Frequency

AC Holdup Time

(50% load)

Minimum Efciency

Energy Star 4.0
Compliant Power Supply

PFC (Active)

DC Parameters

+3.3v Output

+5.0v Output

+12.0v Output

305W

90-135A/

180-

264A

9.0A/4.5A 4.5A/2.3A 9.0A/4.5A 4.5A/2.3A 8.8A/4.3A 4.3A/2.2A 3.2A/1.7A

50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz

16ms 16ms 16ms 16ms 16ms 16ms 10ms at 100% load

65% 80% 65% 80% 65% 80% 85%

305W

High

Efficiency

90-264A

280W

90-135A/

180-

264A

280W

High

Efficiency

90-264A

275W

90-135A/

180-

264A

275W

High

Efficiency

90-264A 90-264A

220W High Efciency

External PSU

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

17.0A 17.0A 10.0A 10.0A 5.0A 5.0A

22.0A 22.0A 15.0A 15.0A 18.0A 18.0A

18.0+18.0A 18.0+18.0A 16.0A 16.0A 17.0A 17.0A 18.0A

+5.0v Auxiliary Output

-12.0v Output

Max Total Power

Max Combined
+3.3v / +5.0v Power

Max Combined

12.0v Power

BTUs/h

(based on PSU max wattage)

4.0A 4.0A 4.0A 4.0A 4.0A 4.0A

1.0A 1.0A 0.5A 0.5A 0.5A 0.5A

305W 305W 280W 280W 275W 275W 220W

150W 150W 108W 108W 106W 106W

264W 264W N/A N/A N/A N/A

1600 1300 1468 1195 1444 1171 880

3.3v CMOS Battery

(type and estimated battery life)

RTC accuracy

(time of day)

Power Supply Fan

Sleeve

bearing

Power Supply Meets Requirements of:

Energy Star 4.0
Compliant Power Supply

N Y N Y N Y Y

Sleeve

bearing

3-V CR2032 lithium coin cell. Est. 5-year life

Drift 2 seconds per month

Sleeve

bearing

Sleeve

bearing

Ball

bearing

Ball

bearing

None

version 1.0 28

28

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

powEr, cont.

MT DT SFF USFF

Blue Angel Compliant

UL Certied

FEMP Executive
Order 13221

auDio

INTEGRATED ADI 1984
HIGH DEFINITION AUDIO

High Definition Stereo Support

Number of Channels

Number of Bits / Audio Resolution

Sampling Rate (recording/playback)

Signal to Noise Ratio

Wavetable Voices

N Y N Y N Y Y

✓ ✓ ✓ ✓ ✓ ✓ ✓

N Y N Y N Y Y

MT DT SFF USFF

✓ ✓ ✓ ✓

2

16, 20, and 24-bit resolution

Independent 8, 11.025, 16, 22.05, 32, 44.1,

48, 88.2, 96, 176.4, and 192 kHz sample rates

96+ dB audio outputs, 90+ dB audio inputs

Analog Audio

Dolby Digital

THX

Digital Out (S/PDIF)

Audio Jack Impedance

Microphone

Line-In

Line-Out

Headphone

Internal Speaker Power Rating

✓ ✓ ✓ ✓

150 kΩ

150 kΩ

190 kΩ

.5 Ω

2 Watts

version 1.0 29

29

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

harD DrivEs

80GB SATA 10000 RPM HDD

1

Capacity (b y t e s )

Dimensions i n c h e s (W x D x H)

Interface Type and Maximum Speed

Internal Buffer Size (range)

Average Seek Time

Rotational Speed

Logical Blocks

Power Source

DC Power (Max)

DC Current

Environmental Operating Conditions:

Temperature Range

MT DT SFF USFF

80,026,361,856

5.87 x 4 x 1

Up to 3Gb/s

16MB

4.6 ms

10000 rpm

156,301,488

Idle 7.0W, Active 10.0W

5V (.8A) and 12V (1.8A)

41°F to 140°F (5°C to 60°C)

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

20% to 80% non-condensing

84°F (29°C)

-50 ft to 10000 ft

Environmental Non-Operating Conditions:

Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

1

For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

-40°F to 149°F (-40°C to 65°C)

10% to 90% non-condensing

100.4°F (38°C)

-50 ft to 35000 ft

version 1.0 30

30

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

harD DrivEs, cont.

80GB SATA 7200 RPM HDD

1

Capacity (b y t e s )

Dimensions i n c h e s (W x D x H)

Interface Type and Maximum Speed

Internal Buffer Size (range)

Average Seek Time

Rotational Speed

Logical Blocks

Power Source

DC Power (Max)

DC Current

Environmental Operating Conditions:

Temperature Range

MT DT SFF USFF

80,026,361,856

5.87 x 4 x 1

Up to 3Gb/s

8MB

8.5 ms

7200 rpm

156,301,488

Idle 7.0W, Active 10.0W

5V (.8A) and 12V (1.8A)

41°F to 140°F (5°C to 60°C)

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

20% to 80% non-condensing

84°F (29°C)

-50 ft to 10000 ft

Environmental Non-Operating Conditions:

Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

1

For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

-40°F to 149°F (-40°C to 65°C)

10% to 90% non-condensing

100.4°F (38°C)

-50 ft to 35000 ft

version 1.0 31

31

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

harD DrivEs, cont.

160GB SATA 7200 RPM HDD

1

Capacity (b y t e s )

Dimensions i n c h e s (W x D x H)

Interface Type and Maximum Speed

Internal Buffer Size (range)

Average Seek Time

Rotational Speed

Logical Blocks

Power Source

DC Power (Max)

DC Current

Environmental Operating Conditions:

Temperature Range

MT DT SFF USFF

160,041,885,696

5.87 x 4 x 1

Up to 3Gb/s

8MB

8.5 ms

7200 rpm

312,581,808

Idle 7.0W, Active 10.0W

5V (.8A) and 12V (1.8A)

41°F to 140°F (5°C to 60°C)

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

20% to 80% non-condensing

84°F (29°C)

-50 ft to 10000 ft

Environmental Non-Operating Conditions:

Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

1

For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

-40°F to 149°F (-40°C to 65°C)

10% to 90% non-condensing

100.4°F (38°C)

-50 ft to 35000 ft

version 1.0 32

32

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

harD DrivEs, cont.

250GB SATA 7200 RPM HDD

1

Capacity (b y t e s )

Dimensions i n c h e s (W x D x H)

Interface Type and Maximum Speed

Internal Buffer Size (range)

Average Seek Time

Rotational Speed

Logical Blocks

Power Source

DC Power (Max)

DC Current

Environmental Operating Conditions:

Temperature Range

MT DT SFF USFF

250,059,350,016

5.87 x 4 x 1

Up to 3Gb/s

8-16MB

8.5 ms

7200 rpm

488,397,168

Idle 7.0W, Active 10.0W

5V (.8A) and 12V (1.8A)

41°F to 140°F (5°C to 60°C)

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

20% to 80% non-condensing

84°F (29°C)

-50 ft to 10000 ft

Environmental Non-Operating Conditions:

Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

1

For hard drives, GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

-40°F to 149°F (-40°C to 65°C)

10% to 90% non-condensing

100.4°F (38°C)

-50 ft to 35000 ft

version 1.0 33

33

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

opticaL DrivEs

DVD +/- RW

External Dimensions i n c h e s /c e n t i m e t e r s

(Of Actual Drive Without Bezel – W x H x D):

Weight (max) p o u n d s /k i l o g r a m s

Interface Type and Speed

Disc Capacity

Internal Buffer Size

Access Times (typical)

Maximum Data Transfer Rates

Writes

Reads

Power Source

DC Power Requirements

DC Current

MT DT SFF USFF

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

800g 800g 180g 180g

SATA 16x SATA 16x

Standard Standard Standard Standard

Supplier-

dependent

Supplier-

dependent

16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD 8x DVD/ 24x CD

16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD 8x DVD/ 24x CD

12V 12V 5V 5V

1200mA (12V)/

900mA (5V)

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

Supplier-

dependent

Supplier-

dependent

1200mA (12V)/

900mA (5V)

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

PATA 8x or SATA

8x

Supplier-

dependent

Supplier-

dependent

1000mA 1000mA

128.0 mm (5.04)/

126.1mm (4.97in)

12.7mm (0.5in)/

PATA 8X

Supplier-

dependent

Supplier-

dependent

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

Environmental Non-Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

5°C to 50°C 5°C to 50°C 5°C to 50°C 5°C to 50°C

20% to 80% RH 20% to 80% RH 20% to 80% RH 20% to 80% RH

29°C 29°C 29°C 29°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

-45°C to 65°C -45°C to 65°C -45°C to 65°C -45°C to 65°C

5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH

38°C 38°C 38°C 38°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

version 1.0 34

34

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

opticaL DrivEs, cont.

DVD-ROM

External Dimensions i n c h e s /c e n t i m e t e r s

(Of Actual Drive Without Bezel – W x H x D):

Weight (max) p o u n d s /k i l o g r a m s

Interface Type and Speed

Disc Capacity

Internal Buffer Size

Access Times (typical)

Maximum Data Transfer Rates

Writes

Reads

Power Source

DC Power Requirements

DC Current

MT DT SFF USFF

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

750g 750g 175g 175g

SATA 48x SATA 48x

Standard Standard Standard Standard

Supplier-

dependent

Supplier-

dependent

N/A N/A N/A N/A

16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD 8x DVD/ 24x CD

12V 12V 5V 5V

1200mA (12V)/

900mA (5V)

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

Supplier-

dependent

Supplier-

dependent

1200mA (12V)/

900mA (5V)

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

PATA 24x or

SATA 24x

Supplier-

dependent

Supplier-

dependent

800mA 800mA

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

PATA 24x

Supplier-

dependent

Supplier-

dependent

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

Environmental Non-Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

5°C to 50°C 5°C to 50°C 5°C to 50°C 5°C to 50°C

20% to 80% RH 20% to 80% RH 20% to 80% RH 20% to 80% RH

29°C 29°C 29°C 29°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

-45°C to 65°C -45°C to 65°C -45°C to 65°C -45°C to 65°C

5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH

38°C 38°C 38°C 38°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

version 1.0 35

35

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

opticaL DrivEs, cont.

COMBO CD-RW

External Dimensions i n c h e s /c e n t i m e t e r s

(Of Actual Drive Without Bezel – W x H x D):

Weight (max) p o u n d s /k i l o g r a m s

Interface Type and Speed

Disc Capacity

Internal Buffer Size

Access Times (typical)

Maximum Data Transfer Rates

Writes

Reads

Power Source

DC Power Requirements

DC Current

MT DT SFF USFF

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

750g 750g 175g 175g

SATA 48x SATA 48x

Standard Standard Standard Standard

Supplier-

dependent

Supplier-

dependent

48x CD 48x CD 24x CD 24x CD

16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD 8x DVD/ 24x CD

12V 12V 5V 5V

1200mA (12V)/

900mA (5V)

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

Supplier-

dependent

Supplier-

dependent

1200mA (12V)/

900mA (5V)

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

PATA 24x or

SATA 24x

Supplier-

dependent

Supplier-

dependent

900mA 900mA

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

PATA 24x

Supplier-

dependent

Supplier-

dependent

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

Environmental Non-Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

5°C to 50°C 5°C to 50°C 5°C to 50°C 5°C to 50°C

20% to 80% RH 20% to 80% RH 20% to 80% RH 20% to 80% RH

29°C 29°C 29°C 29°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

-45°C to 65°C -45°C to 65°C -45°C to 65°C -45°C to 65°C

5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH

38°C 38°C 38°C 38°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

version 1.0 36

36

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

opticaL DrivEs, cont.

CD-ROM

External Dimensions i n c h e s /c e n t i m e t e r s

(Of Actual Drive Without Bezel – W x H x D):

Weight (max) p o u n d s /k i l o g r a m s

Interface Type and Speed

Disc Capacity

Internal Buffer Size

Access Times (typical)

Maximum Data Transfer Rates

Writes

Reads

Power Source

DC Power Requirements

DC Current

MT DT SFF USFF

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

750g 750g 157g 157g

SATA 48x SATA 48x PATA 24x PATA 24x

Standard Standard Standard Standard

Supplier-

dependent

Supplier-

dependent

N/A N/A N/A N/A

48x CD 48x CD 24x CD 24x CD

12V 12V 5V 5V

1200mA (12V)/

900mA (5V)

148.2mm(6in)/

42mm (2in)/ 190.5

(max)

Supplier-

dependent

Supplier-

dependent

1200mA (12V)/

900mA (5V)

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

Supplier-

dependent

Supplier-

dependent

800mA 800mA

128.0 mm (5.04)/

12.7mm (0.5in)/

126.1mm (4.97in)

Supplier-

dependent

Supplier-

dependent

Environmental Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

5°C to 50°C 5°C to 50°C 5°C to 50°C 5°C to 50°C

20% to 80% RH 20% to 80% RH 20% to 80% RH 20% to 80% RH

29°C 29°C 29°C 29°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

Environmental Non-Operating Conditions:

Operating Temperature Range

Relative Humidity Range

Maximum Wet Bulb Temperature

Altitude Range

-45°C to 65°C -45°C to 65°C -45°C to 65°C -45°C to 65°C

5% to 95% RH 5% to 95% RH 5% to 95% RH 5% to 95% RH

38°C 38°C 38°C 38°C

-200 to 10600m -200 to 10600m -200 to 10600m -200 to 10600m

More details for optical drives can be found at:
http://support.dell.com/support/systemsinfo/documentation.aspx?c=us&l=en&s=gen&~cat=7

version 1.0 37

37

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

bios DEfauLts

BIOS FACTORY DEFAULTS (ALL CHASSIS UNLESS NOTED)

Feature Setting

DRIVES

SATA-0: Depends on chassis and HDDs installed

SATA-1: Depends on chassis and HDDs installed

SATA-21: Depends on chassis and HDDs installed

SATA-32: Depends on chassis and HDDs installed

External SATA

SATA Operation: RAID Autodetect/AHCI

SMART Reporting: Off

Integrated NIC: On

Integrated Audio: On

USB Controller: On

Rear Quad USB: On

Rear Dual USB: On

3,4

: On

ONBOARD DEVICES

Default Value

Front USB: On

PCI Slots3: On

LPT Port Mode: PS/2

LPT Port Address: 378h

Serial Port #1: Auto

VIDEO

Primary Video3: Auto

version 1.0 38

38

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

bios DEfauLts, cont.

BIOS FACTORY DEFAULTS (ALL CHASSIS UNLESS NOTED)

Feature Setting

PERFORMANCE

Multiple CPU Core: On

SpeedStep: Off

Virtualization: Off

VT for Direct I/O: Off

Limit CPUID Value: Off

HDD Acoustic Mode: Bypass

SECURITY

Admin Password: (none)

System Password: (none)

SATA-0 Password: (none)

SATA-1 Password: (none)

SATA-2 Password1: (none)

SATA-3 Password2: (none)

Default Value

External SATA Password

Password Changes: Unlocked

TPM Security: Off

Execute Disable: On

Computrace®: Deactivate

version 1.0 39

3,4

: (none)

39

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

bios DEfauLts, cont.

BIOS FACTORY DEFAULTS (ALL CHASSIS UNLESS NOTED)

Feature Setting

Default Value

POWER MANAGEMENT

AC Recovery: Off

Auto Power On: Off

Auto Power Time: 12:00 AM

Low Power Mode: Off

Remote Wake Up: Off

Suspend Mode: S3

MAINTENANCE

Service Tag: System specic

SERR Message: On

Load Defaults: Cancel

Event Log: Mark All Entries

POST BEHAVIOR

Fast Boot: On

Numlock Key: On

POST Hotkeys: Setup & Boot Menu

MEBx Hotkey: On

Keyboard Errors: Report

1

Not present on USFF or SFF

2

Only present on MT

3

Not present on USFF

4

External SATA option only becomes exposed if eSATA dongle is attached to eSATA port.

version 1.0 40

40

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

chassis EncLosurE anD vEntiLation rEquirEMEnts

EncLosurE vEntiLation

If your enclosure has doors, they need to be of a type that
allows at least 30% airow through the enclosure (front and back).

EncLosurE MiniMuM cLEarancE

Leave a 10.2 cm (4 in.) minimum clearance on all vented sides of
the computer to permit the airow required for proper ventilation.

rEcoMMEnDED EncLosurE

Do not install your computer in an enclosure that does not
allow airow. This restricts the airow and impacts your
computer’s performance, possibly causing it to overheat.

opEn DEsk MiniMuM cLEarancE

If your computer is installed in a corner, on a desk, or under
a desk, leave at least 5.1 cm (2 in.) clearance from the back
of the computer to the wall to permit the airow required for

proper ventilation.

version 1.0 41

41

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

rEguLatory coMpLiancE anD EnvironMEntaL

Product related conformity assessment and regulatory authorizations including Product Safety, Electromagnetic Compatibility (EMC),
Ergonomics, and Communication Devices relevant to this product may be viewed at www.dell.com/regulatory_compliance. The Regulatory
Datasheet for this product is located at: http://www.dell.com/content/topics/global.aspx/corp/environment/en/prod_datasheets

Details of Dell’s environmental stewardship program to conserve product energy consumption, reduce or eliminate materials for

disposal, prolong product life span and provide effective and convenient equipment recovery solutions may be viewed at www.dell.
com/environment. Product related conformity assessment, regulatory authorizations, and information encompassing Environmental,
Energy Consumption, Noise Emissions, Product Materials Information, Packaging, Batteries, and Recycling relevant to this product may
be viewed by clicking the Design for Environment link on the webpage.

acoustic noisE EMission inforMation

COMPONENT TYPICAL CONFIGURATION HIGH-END CONFIGURATION

OPTIPLEX 755 MT

CPU E4500 E6850

Memory 1GB DDRII 667MHz 2GB DDRII 800MHz

HDD (#, capacity) 80GB 7200 RPM SATA 2 x 160GB 7200 RPM SATA

RMSD DVD/CD-RW Combo DVD/DVD+/-R

Graphics Adapter Integrated Adapter ATI 2400 Pro

The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 755 MT is as follows1: (all values L

bels2 ; 1 bel=10 decibels, re 10

OPERATING MODE

-12

Watts).

OPTIPLEX 755 MT

TYPICAL CONFIGURATION

DECLARED SOUND POWER (L

WAd

)

HIGH-END CONFIGURATION

DECLARED SOUND POWER (L

expressed in

WAd

WAd

)

Idle 3.7 3.8

HDD Operating 3.8 3.8

ODD Operating 5.0 5.0

90% CPU 3.7 4.1

1

All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no other

peripheral device actively seeking. This test mode is not specied in ISO 7779, but was measured using the same microphone distances and measurement techniques dened

for the other reported operating modes.

2

Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2

version 1.0 42

42

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

acoustic noisE EMission inforMation, cont.

The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured
in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in accordance with ISO 9296 for this product is as follows1:

OPTIPLEX 755 MT

TYPICAL CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

OPERATING

MODE

Idle 28 23 22 31 26 22

HDD Operating 29 24 22 31 26 22

ODD Operating 42 36 33 42 36 34

90% CPU 29 24 22 34 29 25

1

All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no other

peripheral device actively seeking. This test mode is not specied in ISO 7779, but was measured using the same microphone distances and measurement techniques dened

for the other reported operating modes.

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

HIGH-END CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

version 1.0 43

43

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

acoustic noisE EMission inforMation, cont.

COMPONENT TYPICAL CONFIGURATION HIGH-END CONFIGURATION

CPU E4500 E6850

Memory 1GB DDRII 667MHz 2GB DDRII 800MHz

HDD (#, capacity) 80GB 7200 RPM SATA 80GB 10,000 RPM SATA

RMSD DVD/CD-RW Combo DVD/CD-RW Combo

Graphics Adapter Integrated Adapter ATI 2400 Pro

OPTIPLEX 755 DT

The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 755 DT is as follows3: (all values L

bels4 ; 1 bel=10 decibels, re 10

OPERATING MODE

-12

Watts)

OPTIPLEX 755 DT

TYPICAL CONFIGURATION

DECLARED SOUND POWER (L

WAd

)

HIGH-END CONFIGURATION

DECLARED SOUND POWER (L

expressed in

WAd

WAd

)

Idle 3.7 4.0

HDD Operating 3.8 4.1

ODD Operating 5.2 5.1

90% CPU 3.7 4.4

The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured
in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in accordance with ISO 9296 for this product is as follows3:

OPTIPLEX 755 DT

OPERATING MODE

TYPICAL CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

HIGH-END CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

Idle 27 22 23 32 27 24

HDD Operating 28 23 23 33 28 25

ODD Operating 43 37 36 42 38 33

90% CPU 27 22 22 36 31 27

3

All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no

other peripheral device spinning. This test mode is not specied in ISO 7779, but was measured using the same microphone distances and measurement techniques dened

for the other reported operating modes.

4

Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2

version 1.0 44

44

DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE

acoustic noisE EMission inforMation, cont.

COMPONENT TYPICAL CONFIGURATION HIGH-END CONFIGURATION

CPU E4500 E6850

Memory 1GB DDRII 667MHz 2GB DDRII 800MHz

HDD (#, capacity) 80GB 7200 RPM SATA 160GB 7200 RPM SATA

RMSD DVD/CD-RW Combo DVD/DVD+/-R

Graphics Adapter Integrated Adapter ATI 2400 Pro

OPTIPLEX 755 SFF

The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 755 SFF is as follows5: (all values L

-12

re 10

Watts)

OPTIPLEX 755 SFF

OPERATING MODE

TYPICAL CONFIGURATION

DECLARED SOUND POWER (L

WAd

)

WAd

expressed in bels6 ; 1 bel=10 decibels,

HIGH-END CONFIGURATION

DECLARED SOUND POWER (L

WAd

)

Idle 4.0 4.3

HDD Operating 4.1 4.3

ODD Operating 5.0 5.2

90% CPU 4.1 4.5

The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured in accordance
with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in accordance with ISO 9296 for this product is as follows5:

OPTIPLEX 755 SFF

OPERATING MODE

TYPICAL CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

HIGH-END CONFIGURATION

DECLARED SOUND PRESSURE (LpA)

Operator

Position

(LpA)

Bystander

Position

(LpA)

DeskSide

Position

(LpA)

Idle 31 26 26 35 31 26

HDD Operating 31 26 26 35 31 26

ODD Operating 38 33 30 44 39 33

90% CPU 32 27 27 36 32 28

5

All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no

other peripheral device spinning. This test mode is not specied in ISO 7779, but was measured using the same microphone distances and measurement techniques dened

for the other reported operating modes.

6

Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2

version 1.0 45

45