Dell OptiPlex 790 User manual

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
1
TECHNICAL GUIDEBOOK
INSIDE THE OPTIPLEX 790
TM
TM
DELL
OPTIPLEX 790

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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OVE RVI E W
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 9-10
M AR K ET I NG S YS TE M C O N F IG UR AT IO N S
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
Audio and Speakers, Keyboard and Mouse 17
Security, Service, Environmental, All-in-One Stands & Mounts, and Support, Software 18
D E TA IL ED E N GI N EE RI NG S PE CI F I CAT I ON 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 44
Acoustic Noise Emission Information 45-48
TABLE OF CONTENTS

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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FRONT VIEW
1Power Button, Power
Light 6Optical Drive (optional)
2Optical Drive Bay
(optional) 7Optical Drive Eject Button
3Headphone Connector 8USB 2.0 Connectors (4)
4Microphone Connector 9Drive Activity Light
5Diagnostic Lights (4)
BACK VIEW
10 Power Supply Diagnostic
Light 14 Expansion card slots(4)
11 Power Supply Diagnostic
Button 15 Security cable slot
12 Power Connector 16 Padlock Ring
13 Back Panel Connectors
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Link Integrity Light 8USB Connectors (6)
3Network Connector 9Display Port Connector
4Network Activity Light 10 VGA Connector
5Serial connector 11 Line-in/Microphone
connector
6Line-out Connector
MI NI TOW ER CO MP UT ER (MT ) VIE W

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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MI NI TOW ER CO MP UT ER (MT ) VIE W
Number Name Number Name
1Internal speaker connector(INT_SPKR) 13 PCI connector(SLOT3)
2Front IO connector(FRONTPANEL) 14 PCI-e 4x connector(SLOT4)
3Thermal sensor connector(THRM_2) 15 Intrusion switch connector(INTRUDER)
4SATA 0 connector(SATA0) 16 System fan connector(FAN_HDD)
5SATA 1 connector(SATA1) 17 P2 power connector(12V_PWRCONN)
6SATA 2 connector(SATA2) 18 Processor connector(N/A)
7SATA 3 connector(SATA3) 19 CPU fan connector(FAN_CPU)
8Internal USB connector(INT_USB) 20 Memory connectors(DIMM1, DIMM2, DIMM3, DIMM4)
9Buzzer(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)

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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FRONT VIEW
1Optical Drive 5Microphone Connector
2Optical Drive Eject Button 6Headphone Connector
3Power Button, Power
Light 7Drive Activity Light
4USB Connectors (4) 8Diagnostic Lights (4)
BACK VIEW
9Padlock 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
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Link Integrity Light 8USB Connectors (6)
3Network Connector 9Display Port Connector
4Network Activity Light 10 VGA Connector
5Serial connector 11 Line-in/Microphone
connector
6Line-out Connector
DES KT OP CO MPUT ER (DT ) VIEW

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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DES KT OP CO MPUT ER (DT ) VIEW
Number Name Number Name
1Internal speaker connector(INT_SPKR) 13 PCI connector(SLOT3)
2Front IO connector(FRONTPANEL) 14 PCI-e 4x connector(SLOT4)
3Thermal sensor connector(THRM_2) 15 Thermal sensor connector(THRM_1)
4SATA 0 connector(SATA0) 16 System fan connector(FAN_HDD)
5SATA 1 connector(SATA1) 17 P2 power connector(12V_PWRCONN)
6SATA 2 connector(SATA2) 18 Processor connector(N/A)
7Internal USB connector(INT_USB) 19 CPU fan connector(FAN_CPU)
8LPC debug connector(LPC_DEBUG) 20 Memory connectors(DIMM1, DIMM2, DIMM3, DIMM4)
9Intrusion 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)

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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FRONT VIEW
1Optical Drive 5Microphone Connector
2Optical Drive Eject Button 6Headphone Connector
3Power Button, Power
Light 7Diagnostic Lights (4)
4USB 2.0 Connectors (4) 8Drive Activity Light
BACK VIEW
9Padlock 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
BACK PANEL CONNECTORS
1Mouse Connector 7Keyboard Connector
2Serial connector 8Display Port Connector
3Link Integrity Light 9VGA Connector
4Network Connector 10 USB Connectors (6)
5Network Activity Light 11 Line-in/Microphone
connector
6Line-out Connector
S MA L L F OR M F AC T OR C O MP UTER ( SF F) V IE W

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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S MA L L F OR M F AC T OR C O MP UTER ( SF F) V IE W
Number Name Number Name
1P1 power connector(POWER) 12 LPC debug connector(LPC_DEBUG)
2System fan connector(FAN_HDD) 13 Battery connector(BATTERY)
3Internal speaker connector(INT_SPKR) 14 P2 power connector(12V_PWRCONN)
4Buzzer(BEEP) 15 Processor connector(N/A)
5PCI-e 4x connector(SLOT2) 16 CPU fan connector(FAN_CPU)
6PCI-e 16x connector(SLOT1) 17 Power switch connector(PWR_SW)
7SATA 2 connector(SATA2) 18 Memory connector(DIMM3)
8SATA 1 connector(SATA1) 19 Memory connector(DIMM1)
9SATA 0 connector(SATA0) 20 Memory connector(DIMM4)
10 Front IO connector(FRONTPANEL) 21 Memory connector(DIMM2)
11 Intrusion switch connector(INTRUDER)

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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ULTR A S MA LL F OR M FAC TOR C O MPU TER ( US FF) V IEW
FRONT VIEW
1Optical Drive 5Diagnostic Lights (4)
2Optical Drive Eject Button 6Headphone Connector
3Power Button, Power Light 7Microphone Connector
4Drive Activity Light 8USB Connectors (2)
BACK VIEW
9Wi-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

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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S MA L L F OR M F AC T OR C O MP UTER ( US FF) VI EW
Number Name Number Name
1Front panel connector(FRONTPANEL) 10 SATA 1 connector(SATA_1)
2Memory connector(DIMM_2) 11 SATA 0 connector(SATA_0)
3Memory connector(DIMM_1) 12 P1 power connector(POWER1)
4CPU fan connector(FAN_CPU) 13 HDD-ODD power connector (HDD_ODD_POWER)
5Internal speaker connector(INT_SPKR) 14 Intrusion switch connector(INTRUDER)
6Buzzer(BEEP) 15 LPC debug connector(LPC_DEBUG)
7Front IO connector(F_USB_AUDIO) 16 P2 power connector(12V_PWRCONN)
8System fan connector(FAN_HDD) 17 Processor connector(N/A)
9Mini-PCI socket(PCIE_MINICARD) 18 Battery connector(BATTERY)

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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MARKETING SYSTEM CONFIGURATIONS
NO T E : O f f e r i n g s m a y v ar y b y c o u n tr y. F o r m o r e i n f o rm a t i o n r e g a r d i n g t h e c o n fi g u ra t i o n o f yo u r c o m p u t e r, c l i c k
S t a r t > H e l p a nd S u p p o r t a n d s e l ec t th e o p t i o n t o vi e w i n f o r m a t i o n a b ou t yo u r c om p u te r .
OPE RA TING SYS TE M
MT DT SFF USFF
Windows 7® operating system
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® operating system Windows Vista® Home Basic SP2 (32 bits),
Windows Vista® Business SP2 (32 and 64 bit),
Windows Vista® Ultimate SP2 (32 bit)
Windows XP® operating system Basic Driver support only via Dell.com
Other FreeDOS for (N-series),
Ubuntu® Linux version 10.10 (China only)
OS Media Support Optional
CH IPSET
MT DT SFF USFF
Chipset Intel Q65 Express 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)118KB located at TPM1.2 on chipset
Non-TPM Available in select countries
NIC EEPROM LOM configuration contained within SPI_FLASH – no dedicated LOM
EEPROM

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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PRO CE SS OR
NOTE: Global Standard Products (GSP) are a subset of Dell’s relationship products that are managed for availability and synchro-
nized 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.
MT DT SFF USFF
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 XXXX
Intel® Core™ i3 2100 / 3.10GHz, 3M, VT-x, 65W XXXX
Intel® Core™ i3 2130 / 3.40GHz, 3M, VT-x, 65W (after Oct 2011) XXXX
Intel® Pentium Processors
IPP G850 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.9GHz 65W HD
GRAPHICS 2000 QS XXXX
IPP G840 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.8GHZ 65W HD
GRAPHICS 2000 QS XXXX
IPP G630 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.7GHZ 65W HD
GRAPHICS 2000 QS (after Oct 2011) XXXX
IPP G620 SANDY BRIDGE Q-0 3MB 2c FCLGA 2.6GHZ 65W HD
GRAPHICS 2000 QS XXXX
Intel® Celeron Processors (After October 2011)
ICPG530 SANDY BRIDGE Q-02MB 2c FCLGA 2.4GHZ 65W HD
GRAPHICS QS XXXX
IPP G440 SANDY BRIDGE Q-0 2MB 1.6GHZ 35W FCLGA11AQC XXXX

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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ME MOR Y
NOTE: Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not in-
stalled 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.
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.
MT DT SFF USFF
Type: DDR3 Synch DRAM Non-ECC Memory 1333MHz
DIMM Slots 4442
DIMM Capacities Up to 4GB Up to 4GB Up to 4GB Up to 4GB
Minimum Memory 1GB 1GB 1GB 1GB
Maximum System Memory 16GB1 16GB116GB1 8GB1
Memory configurations
16GB1 DDR3, 1333MHz, (4 DIMM) XXX
8GB1 DDR3, 1333MHz, (2 DIMM) XXXX
4GB1 DDR3, 1333MHz, (2 DIMM) XXXX
4GB1 DDR3, 1333MHz, (1 DIMM) X
3GB DDR3, 1333MHz, (2 DIMM) XXXX
2GB DDR3, 1333MHz, (1 DIMM) XXXX
1GB DDR3, 1333MHz, (1 DIMM) XXXX

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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DRIVES AND R EM OV ABL E ST ORA GE
MT DT SFF USFF
Bays:
5.25-inch bay (External Optical) 211 (slim-line) 1 (slim-line)
Hard Drives Supported (Internal and External) 2111
Optical Drives Supported 2111
Interface:
SATA 2.0 3221
SATA 3.0 1111
3.5” Hard Drives:
1TB1 SATA 7200 RPM HDD XXX
500GB1 SATA 7200 RPM HDD XXX
320GB1 SATA 7200 RPM HDD XXX
250GB1 SATA 7200 RPM HDD XXX
2.5” Hard Drives:
500GB1 SATA 7200 RPM HDD XXXX
500GB1 SATA 7200 RPM Hybrid HDD XXXX
320GB1 with and without FIPS Full DISK EnCRYPTION SATA
HDD (available after May19, 2011) XXXX
250GB1 SATA 7200 RPM HDD XXXX
128GB1 SATA Solid State Drive HDD XXXX

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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DRIVES AND R EM OV ABL E ST ORA GE
MT DT SFF USFF
Optical Drive: (SFF/USFF require slim-line optical drive)
DVD+/-RW2SATA
1.5Gbit/s SATA 1.5Gbit/s SATA 1.5Gbit/s SATA 1.5Gbit/s
DVD-ROM3SATA
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 XX
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.
MT DT SFF USFF
PCI Slot(s): number of 11
PCIe x16 Slot: number of 111
PCIe x16 (wired x4)Slot: number of 111
PCIe x1 Slot: number of 11
miniPCIe connector: number of 1
Serial ATA (SATA) 4332
NO T E : D e l l 1 9 i n 1 M e d i a Ca r d R e a d e r i s s u p p or t ed vi a a F 5 t o F 3 b r a c k e t on t h e M T a nd D T
SY STE M E XPA NSI ON SL O TS
NO T E : S e e D e t a i l e d E n g i n eer i n g S p e c i f i c a t i o n s fo r s up p o r t e d v o l t a g e , m a x i m u m w a tta g e a n d c ar d di m e n -
s i o n s .
NO T E : Ad d in ca r d l o c a t i o n an d pr i o r i t y: PCI : 13 9 4 ; PCI e x1 6 : GF X , US B 3. 0 , Se ri a l , Pa ral l el / S e r i al , NI C ,
W i rel e s s ; P C I e x4: G F X , US B 3 . 0 , S e r i al , P ar a l l e l / S e r i al , N I C, W i r e l e ss; P C I e x1: U S B 3 . 0, S e r i a l , P a r a l l e l /
S e r i al , N I C , W i r e l e s s

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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MT DT SFF USFF
Intel HD Graphics [with Celeron/Pentium class CPU-GPU combo]
Intel HD Graphics 2000[with iCore Dual/Quad core class CPU-
GPU combo] Integrated on CPU
Enhanced Graphic/Video Options
1GB AMD RADEON HD 6450 with DP and DVI Optional card
512MB AMD RADEON HD 6350 with dual DVI or dual VGA
(adapters convert to dual DVI or dual VGA) Optional card
GRA PHIC S/V ID EO C ONTR OL LE R
NO T E : M T s u p p o r t s f u l l h e i g h t c a r d , D T s u p p o r t s l o w p ro f i l e c a r d . S F F s u p p o r t s l o w p ro f i l e c a r d .
See chassis diagrams section for port/connector locations MT DT SFF USFF
USB 2.0 (1 internal on MT and DT) 4 Front, 6 Rear 2 Front, 5
Rear
Serial 1 Rear
Parallel/2nd Serial via optional PCIex1 card Optional FH
card
2nd Parallel via optional PCIex1 card (after August 2011) Optional LP card
Network Connector (RJ-45) 1 Rear
PS/2 2 Rear
1394 Controller via optional PCI card Optional FH
card Optional LP card
USB 3.0 via optional PCIex1 card Optional FH
card Optional LP card
Video:
VGA 1 Rear
DisplayPort 1 Rear
Audio:
Line in for microphone 1 Front
Line in for microphone or stereo 1 Rear
Line out for headphones or speakers 1 Front, 1 Rear
E XT E R NA L P OR T S /C ON N E C TO R S
NO T E : M T s u p p o r t s f u l l h e i g h t c a r d , D T s u p p o r t s l o w p ro f i l e c a r d . S F F s u p p o r ts l ow p r o f i l e c a r d .

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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MT DT SFF USFF
Intel® 82579LM Gigabit1 Ethernet LAN 10/100/1000 (Remote
Wake Up, PXE support and Intel Active Management Technolo-
gy support) Integrated on system board
Broadcom NetXtreme 10/100/1000 PCIe Gigabit Networking
Card Optional via add-in card
1 This term does not connote an actual operating speed of 1 Gb/sec. For high speed transmission, connection to a Gigabit Ethernet server and network
infrastructure is required.
MT DT SFF USFF
Dell Wireless 1520 PCIe WLAN card (802.11n) Optional via add-in card
Dell Wireless 1520 half miniPCIe WLAN card (802.11n) Optional
CO MMUNIC AT IONS –W IREL ESS
MT DT SFF USFF
Realtek ALC269Q High Definition Audio Codec Integrated on system board
Internal Dell Business Audio Speaker Optional
Dell AX210 2.0 Desktop Speakers Optional
Dell AX510/AX510PA Flat Panel Soundbar Speakers Optional
AUD IO AND SPE AK ERS
MT DT SFF USFF
Dell USB Entry Keyboard with optional palmrest Standard
Dell Multimedia Pro Keyboard Optional
Dell Smartcard Keyboard Optional
Dell USB Optical Mouse Standard
Dell Laser Mouse Optional
KEY BO ARD AND MO US E
CO MMUNIC AT IONS - NET WORK ADA P TER ( NIC )
NO T E : M T s u p p o r t s f u l l h e i g h t c a r d , D T s u p p o r t s l o w p ro f i l e c a r d . S F F s u p p o r ts l ow p r o f i l e c a r d .

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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SEC UR ITY
SOF TW ARE
MT DT SFF USFF
Trusted Platform Module (TPM) 1.21Integrated on system board
Chassis Intrusion Switch Optional
Dell Smartcard Keyboard Optional
Chassis lock slot and loop support Standard
Dell Data Protection | Hardware Encryption Engine Optional. Available in Q3 2011
1TPM is not available in all countries. Depending on your country regulations, No-TPM system boards will be made available.
SERV IC E AND S UP POR T
NO T E : F o r m or e d et a i l s o n D e l l S e r vi ce P l a n s pl ea s e t o g o to : w w w . d e l l . co m / s e r vi c e / s e r v i c e _ p l a n s
MT DT SFF USFF
3 Year Warranty1 Next Business Day On-site2 (3-3-3) Standard
ProSupport Optional
1 For a copy of our guarantees or limited warranties, please write Dell USA L.P., Attn: Warranties, One Dell Way, Round Rock, TX 78682. For more
information, visit www.dell.com/warranty.
2 Service may be provided by third-party. Technician will be dispatched if necessary following phone-based troubleshooting. Subject to parts availabil-
ity, geographical restrictions and terms of service contract. Service timing dependent upon time of day call placed to Dell. U.S. only.
MT DT SFF USFF
Dell Client Manager Available via Dell.com
Dell Data Protection/Access (DDPA) Standard
Norton 2010 Internet Security 30 Day Trial or Optional Subscription
McAfee 10 SecurityCenter 30 Day Trial or Optional Subscription
Dell Data Protection | Encryption (DDPE) Optional. Available in Q3 2011
ENVIRONMENTAL
NO T E : F o r m o re de tai l s o n D e l l E n vi r o nm e n ta l fe a t u r es, p l ea s e to g o to E nvi ron m e n t a l A t t rib u te s s ec t io n . S ee
yo u r s p e c i  c r e gio n fo r a va i l ab i l ity .
MT DT SFF USFF
Sustainable packaging X XX
BFR/PVC—free limited congurations
MultiPack packaging Optional, US only
Energy Ecient Power Supply Optional Standard
ALL -IN-ONE STA NDS AN D MOUNT S
MT DT SFF USFF
Small Form Factor AIO Stand Optional
Ultra Small Form Factor AIO Stand Optional
Ultra Small Form Factor Wall Mount / Desk Mount Optional

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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DETAILED ENGINEERING SPECIFICATIONS
S YS T E M D I ME NS IO NS ( P H YS IC AL )
NO T E : S ys t e m W e i g h t a nd S h i p p i n g W e i g ht i s b as e d o n a t yp i cal c on f i g u r a t i o n a n d m a y v a r y b as e d o n P C
co n f i g u r at i o n . A t yp i c a l co n f i g ur a ti o n in c l u d e s : int e g r a t e d g r ap h i c s , one hard d ri v e, on e o p ti c a l d r i ve, an d
o n e di s k e t t e d r i v e .
* Card length can be longer than standard Half-Length Card but cannot be a Full-Length Card.
MT DT SFF USFF
Chassis Volume (liters) 26.27 15.06 8.38 3.70
Chassis Weight (pounds/kilograms) 19.55 / 8.87 16.67 / 7.56 12.57 / 5.70 7.20 / 3.27
Chassis Dimensions: (HxWxD)
Height (inches/centimeters) 14.17 / 36 14.17 / 36 11.42 / 29 9.32 / 23.67
Width (inches/centimeters) 6.89 / 17.5 4.02 / 10.2 3.65 / 9.26 2.56 / 6.5
Depth (inches/centimeters) 16.42 / 41.7 16.14 / 41 12.28/31.2 9.44 / 24
Shipping Weight (pounds/kilograms - includes packaging materials) 23.45 / 10.64 20.03 / 9.09 15.2 / 6.89 9.56/ 4.34
Packaging Parameters (HxWxD)
Height (inches/centimeters) 21.31/54.13 21.31 / 54.13 19.25/48.90 19.13/48.59
Width (inches/centimeters) 18.75/47.63 18.75/47.63 15.81/40.16 14.38/36.53
Depth (inches/centimeters) 14.09 / 35.79 10.84/27.53 10.19/25.88 9.63/24.46
SY STE M E XPA NSI ON SL O TS
MT DT SFF USFF
PCI Slot (Voltage supported 3.3V/5V/12V/-12V) 11
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89
Length (inches/centimeters) 6.6 / 16.765 6.6/16.765
Maximum Wattage 25W 25W
PCIex16 Slot (BLUE) (Voltage supported 3.3V/12V) 111
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89 2.731 /6.89
Length (inches/centimeters) 6.6/ 16.765 6.6 /16.765 6.6 /16.765
Maximum Wattage 35W 35W 35W
PCIex16 wired as x4 Slot (BLACK) (Voltage supported 3.3/12V) 111
Height (inches/centimeters) 4.376 / 11.115 2.731 /6.89 2.731 /6.89
Length (inches/centimeters) 6.6 / 16.765 6.6 /16.765 6.6/16.765
Maximum Wattage 25W 25W 25W
PCIe x1 Slot (Voltage supported 3.3V/12V) 11
Height (inches/centimeters) 4.376 / 11.115 2.731 / 6.89
Length (inches/centimeters) 4.5 / 11.44 4.5 / 11.44
Maximum Wattage 10W 10W
Mini PCIe x1 Slot 1

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SYS TE M LEV EL E NVIR ON MENTA L AN D OPERA T ING C O ND ITI ONS
MT DT SFF USFF
Temperature
Operating 10° to 35° C (50° to 95° F)
Non-Operating (Storage) -40° to 65° C (-40° to -149° F)
Relative Humidity 20% to 80% (non-condensing)
Maximum vibration
Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min
Non-Operating 0.5 G at 3 to 200 Hz at 1 octave/min
Maximum Shock
Operating Bottom half-sine pulse with a change in velocity of
50.8 cm/sec (20 inches/sec)
Non-Operating 27-G faired square wave with a velocity change of
508 cm/sec (200 inches/sec)
Maximum Altitude
Operating –15.2 to 3048 m (–50 to 10,000 ft)
Non-Operating –15.2 to 10,668 m (–50 to 35,000 ft)