Dell OPTIPLEX 790, OptiPlex 790 USFF, OptiPlex 790 MT Technical Manualbook
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
TM
DELL
TM
OPTIPLEX 790
TECHNICAL GUIDEBOOK
INSIDE THE OPTIPLEX 790
1
TABLE OF CONTENTS
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
OV E RV I EW
Mini Tower Computer (MT) View 3-4
Desktop Computer (DT) View 5-6
Small Form Factor Computer (SFF) View 7-8
Ultra Small Form Factor Computer (USFF) View
MA R KE T IN G S Y ST E M C O N FI G UR A TI O NS
Operating System, Chipset 11
Processor 12
Memory 13
Drives and Removable Storage, System Expansion Slots 14-15
Graphics/Video Controller 16
External Ports/Connectors 16
Communications—Network Adapter (NIC), Wireless 17
9-10
Audio and Speakers, Keyboard and Mouse 17
Security, Service, Environmental, All-in-One Stands & Mounts, and Support, Software 18
DE T AI L ED EN G IN E ER I NG S P E CI F I C A TI O N S
System Dimensions (Physical) 19
System Expansion Slots 19
System Level Environmental and Operating Conditions 20
Power 21-22
Audio 23
Communications 24-27
Graphics/Video Controller 28-29
Hard Drives 30-38
Optical Drive 39-40
Media Card Reader
41
BIOS Defaults 42
Chassis Enclosure and Ventilation Requirements 43
Environmental Attributes
Acoustic Noise Emission Information 45-48
44
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
MI N I T OW ER CO M P U TE R ( MT) VI EW
FRONT VIEW
1
Power Button, Power
6 Optical Drive (optional)
Light
2 Optical Drive Bay
(optional)
3
Headphone Connector
4
Microphone Connector
5
Diagnostic Lights (4)
BACK PANEL CONNECTORS
1 Mouse Connector 7 Keyboard Connector
2 Link Integrity Light 8 USB Connectors (6)
3 Network Connector 9 Display Port Connector
4 Network Activity Light 10 VGA Connector
7 Optical Drive Eject Button
8 USB 2.0 Connectors (4)
9
Drive Activity Light
BACK VIEW
10 Power Supply Diagnostic
Light
11 Power Supply Diagnostic
Button
12 Power Connector 16 Padlock Ring
13 Back Panel Connectors
14 Expansion card slots(4)
15 Security cable slot
5 Serial connector 11 Line-in/Microphone
connector
6 Line-out Connector
3
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
MI N I T OW ER CO M P U TE R ( MT) VI EW
Number Name Number Name
1 Internal speaker connector(INT_SPKR) 13 PCI connector(SLOT3)
2 Front IO connector(FRONTPANEL) 14 PCI-e 4x connector(SLOT4)
3 Thermal sensor connector(THRM_2) 15 Intrusion switch connector(INTRUDER)
4 SATA 0 connector(SATA0) 16 System fan connector(FAN_HDD)
5 SATA 1 connector(SATA1) 17 P2 power connector(12V_PWRCONN)
6 SATA 2 connector(SATA2) 18 Processor connector(N/A)
7 SATA 3 connector(SATA3) 19 CPU fan connector(FAN_CPU)
8 Internal USB connector(INT_USB) 20 Memory connectors(DIMM1, DIMM2, DIMM3, DIMM4)
9 Buzzer(BEEP) 21 Power switch connector(PWR_SW)
10 LPC debug connector(LPC_DEBUG) 22 Battery connector(BATTERY)
11 PCI-e 16x connector(SLOT1) 23 P1 power connector(POWER)
12 PCI-e 1x connector(SLOT2)
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
DE S KT OP CO M PU TER ( D T) VI EW
FRONT VIEW
1 Optical Drive 5
2 Optical Drive Eject Button 6
3
Power Button, Power
Microphone Connector
Headphone Connector
7
Drive Activity Light
Light
4 USB Connectors (4) 8
BACK PANEL CONNECTORS
1 Mouse Connector 7 Keyboard Connector
2 Link Integrity Light 8 USB Connectors (6)
3 Network Connector 9 Display Port Connector
4 Network Activity Light 10 VGA Connector
5 Serial connector 11 Line-in/Microphone
6 Line-out Connector
Diagnostic Lights (4)
connector
BACK VIEW
9 Padlock Ring 13 Expansion card slots(4)
10 Security cable slot 14 Power Supply Diagnostic
Light
11 Power Connector 15 Power Supply Diagnostic
Button
12 Back Panel Connectors
5
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
DE S KT OP CO M PU TER ( D T) VI EW
Number Name Number Name
1 Internal speaker connector(INT_SPKR) 13 PCI connector(SLOT3)
2 Front IO connector(FRONTPANEL) 14 PCI-e 4x connector(SLOT4)
3 Thermal sensor connector(THRM_2) 15 Thermal sensor connector(THRM_1)
4 SATA 0 connector(SATA0) 16 System fan connector(FAN_HDD)
5 SATA 1 connector(SATA1) 17 P2 power connector(12V_PWRCONN)
6 SATA 2 connector(SATA2) 18 Processor connector(N/A)
7 Internal USB connector(INT_USB) 19 CPU fan connector(FAN_CPU)
8 LPC debug connector(LPC_DEBUG) 20 Memory connectors(DIMM1, DIMM2, DIMM3, DIMM4)
9 Intrusion switch connector (INTRUDER) 21 Power switch connector(PWR_SW)
10 Buzzer(BEEP) 22 Battery connector(BATTERY)
11 PCI-e 16x connector(SLOT1) 23 P1 power connector(POWER)
12 PCI-e 1x connector(SLOT2)
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
SM A LL FO R M FA C TO R C O M PU T ER (S FF ) V I EW
FRONT VIEW
1 Optical Drive 5
2 Optical Drive Eject Button 6
3
Power Button, Power
Microphone Connector
Headphone Connector
7
Diagnostic Lights (4)
Light
4 USB 2.0 Connectors (4) 8
BACK PANEL CONNECTORS
1 Mouse Connector 7 Keyboard Connector
2 Serial connector 8 Display Port Connector
3 Link Integrity Light 9 VGA Connector
4 Network Connector 10 USB Connectors (6)
5 Network Activity Light 11 Line-in/Microphone
6 Line-out Connector
Drive Activity Light
connector
BACK VIEW
9 Padlock Ring 13 Power Supply Diagnostic
Light
10 Security cable slot 14 Back Panel Connectors
11 Power Connector 15 Expansion card slots(2)
12 Power Supply Diagnostic
Button
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
SM A LL FO R M FA C TO R C O M PU T ER (S FF ) V I EW
Number Name Number Name
1 P1 power connector(POWER) 12 LPC debug connector(LPC_DEBUG)
2 System fan connector(FAN_HDD) 13 Battery connector(BATTERY)
3 Internal speaker connector(INT_SPKR) 14 P2 power connector(12V_PWRCONN)
4 Buzzer(BEEP) 15 Processor connector(N/A)
5 PCI-e 4x connector(SLOT2) 16 CPU fan connector(FAN_CPU)
6 PCI-e 16x connector(SLOT1) 17 Power switch connector(PWR_SW)
7 SATA 2 connector(SATA2) 18 Memory connector(DIMM3)
8 SATA 1 connector(SATA1) 19 Memory connector(DIMM1)
9 SATA 0 connector(SATA0) 20 Memory connector(DIMM4)
10 Front IO connector(FRONTPANEL) 21 Memory connector(DIMM2)
11 Intrusion switch connector(INTRUDER)
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
UL T RA S M AL L F O RM FA CT OR CO MPU TER ( U SF F) VI EW
FRONT VIEW
1 Optical Drive
2 Optical Drive Eject Button 6 Headphone Connector
3 Power Button, Power Light 7 Microphone Connector
4 Drive Activity Light 8 USB Connectors (2)
5
Diagnostic Lights (4)
BACK VIEW
9 Wi-Fi Antenna (optional) 16 Line-in/ Microphone
Connector
10 Network Activity Light 17 Display Port Connector
11 Captive Thumbscrew 18 VGA Connector
12 Padlock Ring 19 Serial Connector
13 Security Cable Slot 20 USB Connectors (5)
14 Power Connector 21 Network Connector
15 Line-Out Connector 22 Link Integrity Light
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
SM A LL FO R M FA C TO R C O M PU T ER (U SF F ) V IE W
Number Name Number Name
1 Front panel connector(FRONTPANEL) 10 SATA 1 connector(SATA_1)
2 Memory connector(DIMM_2) 11 SATA 0 connector(SATA_0)
3 Memory connector(DIMM_1) 12 P1 power connector(POWER1)
4 CPU fan connector(FAN_CPU) 13 HDD-ODD power connector (HDD_ODD_POWER)
5 Internal speaker connector(INT_SPKR) 14 Intrusion switch connector(INTRUDER)
6 Buzzer(BEEP) 15 LPC debug connector(LPC_DEBUG)
7 Front IO connector(F_USB_AUDIO) 16 P2 power connector(12V_PWRCONN)
8 System fan connector(FAN_HDD) 17 Processor connector(N/A)
9 Mini-PCI socket(PCIE_MINICARD) 18 Battery connector(BATTERY)
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
MARKETING SYSTEM CON FI GURATIONS
NO T E: Of f er i n gs ma y va r y b y co u nt r y. F or m or e i n fo r m a t io n re ga r d in g t he c on f i g u ra t io n of yo u r co m p ut e r, cl i c k
S t a rt > H el p a n d S up p or t a n d s e l e c t t he op t i on to vi ew in f o rm a ti o n a b ou t y o u r co m pu t e r.
OP E RA TIN G S YS T EM
Windows 7® operating system
Windows Vista® operating system
Windows XP® operating system Basic Driver support only via Dell.com
Other
OS Media Support Optional
MT DT SFF USFF
Microsoft® Windows 7® Home Basic (32 and 64 bit) (select countries),
Microsoft® Windows 7® Home Basic SP1 (32 and 64 bit) (select coun-
tries),
Microsoft® Windows 7® Home Premium (32 and 64 bit),
Microsoft® Windows 7® Professional (32 and 64 bit),
Microsoft® Windows 7® Ultimate (32 and 64 bit),
Microsoft® Windows 7 Starter SP1(32 bits),
Microsoft® Windows 7 Starter SP1 w/MUI (32 bits)
Windows Vista® Home Basic SP2 (32 bits),
Windows Vista® Business SP2 (32 and 64 bit),
Windows Vista® Ultimate SP2 (32 bit)
FreeDOS for (N-series),
Ubuntu® Linux version 10.10 (China only)
CH I PS E T
Chipset
Non-volatile memory on chipset
BIOS Configuration SPI (Serial Peripheral Interface) 64Mbit (8MB) and 16Mbit(2MB)located at SPI_FLASH on chipset
TPM 1.2 Security Device (Trusted Platform Module)
1
18KB located at TPM1.2 on chipset
MT DT SFF USFF
Intel Q65 Express Chipset
Non-TPM Available in select countries
NIC EEPROM
LOM configuration contained within SPI_FLASH – no dedicated LOM
EEPROM
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
PR O CE SS O R
NOTE: 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 specific product configurations worldwide. The following GSP processors identified below
will be made available to Dell customers.
NOTE: Processor numbers are not a measure of performance. Processor availability subject to change and may vary by region/
country.
Intel® Quad Core Processors
Intel® Core™ i7 2600 / 3.40GHz, 8M, VT-x, VT-d, TXT (vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i7 2600S / 2.80GHz, 8M, VT-x, VT-d, TXT (vPro™), 65W X-GSP
Intel® Core™ i5 2500 / 3.30GHz, 6M, VT-x, VT-d, TXT (vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i5 2500S / 2.70GHz, 6M, VT-x, VT-d, TXT (vPro™), 65W X-GSP
Intel® Core™ i5 2400 / 3.10GHz, 6M, VT-x, VT-d, TXT (vPro™), 95W X-GSP X-GSP X-GSP
Intel® Core™ i5 2400S / 2.50GHz, 6M, VT-x, VT-d, TXT (vPro™), 65W X-GSP
Intel® Dual Core Processors
Intel® Core™ i3 2120 / 3.30GHz, 3M, VT-x, 65W X X X X
Intel® Core™ i3 2100 / 3.10GHz, 3M, VT-x, 65W X X X X
Intel® Core™ i3 2130 / 3.40GHz, 3M, VT-x, 65W (after Oct 2011) X X X X
Intel® Pentium Processors
MT DT SFF USFF
IPP G850 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.9GHz 65W HD
GRAPHICS 2000 QS
IPP G840 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.8GHZ 65W HD
GRAPHICS 2000 QS
IPP G630 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.7GHZ 65W HD
GRAPHICS 2000 QS (after Oct 2011)
IPP G620 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.6GHZ 65W HD
GRAPHICS 2000 QS
Intel® Celeron Processors (After October 2011)
ICPG530 SANDY BRIDGE Q-02MB 2c FCLGA 2.4GHZ 65W HD
GRAPHICS QS
IPP G440 SANDY BRIDGE Q-0 2MB 1.6GHZ 35W FCLGA11AQC X X X X
X X X X
X X X X
X X X X
X X X X
X X X X
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
ME MOR Y
NOTE: 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. The entire 16-GB memory range
is available to 64-bit operating systems.
Type: DDR3 Synch DRAM Non-ECC Memory
DIMM Slots
DIMM Capacities
Minimum Memory
Maximum System Memory
MT DT SFF USFF
1333MHz
4 4 4 2
Up to 4GB Up to 4GB Up to 4GB Up to 4GB
1GB 1GB 1GB 1GB
1
16GB
16GB1 16GB1 8GB1
Memory configurations
16GB
8GB
4GB
4GB
1
DDR3, 1333MHz, (4 DIMM) X X X
1
DDR3, 1333MHz, (2 DIMM) X X X X
1
DDR3, 1333MHz, (2 DIMM) X X X X
1
DDR3, 1333MHz, (1 DIMM) X
3GB DDR3, 1333MHz, (2 DIMM) X X X X
2GB DDR3, 1333MHz, (1 DIMM) X X X X
1GB DDR3, 1333MHz, (1 DIMM) X X X X
1
The total amount of available memory will be less than 4GB. The amount less depends on the actual system configuration. To fully utilize 4GB or
more of memory requires a 64-bit enabled processor and 64-bit operating system.
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
DR I VE S A ND RE M OV AB L E S TO R A G E
MT DT SFF USFF
Bays:
5.25-inch bay (External Optical) 2 1 1 (slim-line) 1 (slim-line)
Hard Drives Supported (Internal and External) 2 1 1 1
Optical Drives Supported 2 1 1 1
Interface:
SATA 2.0 3 2 2 1
SATA 3.0 1 1 1 1
3.5” Hard Drives:
1
1TB
SATA 7200 RPM HDD X X X
500GB
320GB
250GB
1
SATA 7200 RPM HDD X X X
1
SATA 7200 RPM HDD X X X
1
SATA 7200 RPM HDD X X X
2.5” Hard Drives:
500GB
500GB
1
SATA 7200 RPM HDD X X X X
1
SATA 7200 RPM Hybrid HDD X X X X
320GB1 with and without FIPS Full DISK EnCRYPTION SATA
HDD (available after May19, 2011)
250GB
128GB
1
SATA 7200 RPM HDD X X X X
1
SATA Solid State Drive HDD X X X X
X X X X
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
DR I VE S A ND RE M OV AB L E S TO R A G E
MT DT SFF USFF
Optical Drive: (SFF/USFF require slim-line optical drive)
DVD+/-RW2
DVD-ROM3
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
SATA
1.5Gbit/s
Media Card Reader:
Dell 19 in 1 Media Card Reader X X
NO T E: De l l 1 9 i n 1 M e d ia Ca r d R e ad e r i s su p p or t ed vi a a F 5 to F 3 b r a c ke t on t h e M T a n d D T
SY S TE M E XP A NS IO N S L O TS
NO T E: Se e De ta i l ed E ng i ne e ri n g S p ec i f i c a ti o ns fo r sup p o r t ed vo l t a g e , m ax im u m w a tt a g e an d ca r d di me n si o ns .
NO T E: Add i n ca rd l o c at io n a n d pr i or i t y : P C I : 13 94 ; P CI e x1 6: GF X , US B 3 . 0, S e ri a l , P a r al l el / S e r ia l , NI C ,
W i r el e ss ; PC I e x4 : GFX , US B 3 .0 , S er i al , Pa r a l l e l/ S er i al , N IC , Wi r el e s s; P C I e x 1 : U S B 3 . 0 , S e ri a l , P a ra l le l /
S e r ia l , N I C, Wi re l es s
MT DT SFF USFF
PCI Slot(s): number of 1 1
PCIe x16 Slot: number of
1 1 1
PCIe x16 (wired x4)Slot: number of 1 1 1
PCIe x1 Slot: number of
miniPCIe connector: number of
1 1
1
Serial ATA (SATA) 4 3 3 2
1
For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2
Discs burned with this drive may not be compatible with some existing drives and players; using DVD+R media provides maximum compatibility.
3
DVD-ROM drives may have write-capable hardware that has been disabled via firmware modifications.
15
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