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
2
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
3
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
5
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)
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