Dell OptiPlex 790 Support Question
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Question posted by mneangelw on May 20th, 2014
Optiplex 790 Won't Boot Up. Usb Light 3 Is On
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Related Dell OptiPlex 790 Manual Pages
View - Page 1
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![](/manualimages/s/h/dell-optiplex-790-view-e008870_1_0a34.png)
...optical-drive bay (optional) 3. USB 2.0 connectors (4)
9. back panel connectors 14. Front And Back View
Figure 1. diagnostic lights (4) 6. power supply diagnostic button 12. padlock ring
Regulatory Model: D09M, D05D, D03S, D01U Regulatory Type: D09M001, D05D001, D03S001, D01U002 2011 - 02 drive activity light 10. Dell OptiPlex 790
Setup And Features Information
About...
Technical Guidebook - Page 3
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 MINI TOWER COMPUTER (MT) VIEW
FRONT VIEW
1 Power Button, Power Light
2 Optical Drive Bay (optional)
3 Headphone Connector
4 Microphone Connector
5 Diagnostic Lights (4)
6 Optical Drive (optional) 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 ...
Technical Guidebook - Page 5
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![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_5_b86c.png)
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 DESKTOP COMPUTER (DT) VIEW
FRONT VIEW 1 Optical Drive
2 Optical Drive Eject Button
3 Power Button, Power Light
4 USB Connectors (4)
5 Microphone Connector 6 Headphone Connector 7 Drive Activity Light 8 Diagnostic Lights (4)
BACK VIEW 9 Padlock Ring 10 Security cable slot
11 Power Connector
12 Back Panel Connectors
13 Expansion card ...
Technical Guidebook - Page 6
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_6_ee91.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_6_ee91.png)
V 1.6 DESKTOP COMPUTER (DT) VIEW
Number
Name
Number
Name...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,...1x connector(SLOT2)
6 DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK -
Technical Guidebook - Page 7
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![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_7_5218.png)
...; OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 SMALL FORM FACTOR COMPUTER (SFF) VIEW
FRONT VIEW
1 Optical Drive 2 Optical Drive Eject Button
5 Microphone Connector 6 Headphone Connector
3 Power Button, Power Light
4 USB 2.0 Connectors (4)
7 Diagnostic Lights (4) 8 Drive Activity Light
BACK VIEW 9 Padlock Ring
10 Security cable slot 11 Power Connector
13 Power Supply Diagnostic Light
14...
Technical Guidebook - Page 8
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_8_0caa.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_8_0caa.png)
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 SMALL FORM FACTOR COMPUTER (SFF) VIEW
Number
Name
Number
Name
1 P1 power connector(POWER)
12 LPC debug connector(LPC_DEBUG)
2 System fan connector(FAN_HDD)
...
Technical Guidebook - Page 9
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW
FRONT VIEW 1 Optical Drive 2 Optical Drive Eject Button 3 Power Button, Power Light 4 Drive Activity Light
5 Diagnostic Lights (4) 6 Headphone Connector 7 Microphone Connector 8 USB Connectors (2)
BACK VIEW 9 Wi-Fi Antenna (optional)
10 Network Activity Light 11 Captive Thumbscrew 12 ...
Technical Guidebook - Page 11
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_11_6e8e.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_11_6e8e.png)
... located at TPM1.2 on chipset
Available in select countries LOM configuration contained within SPI_FLASH - V 1.6
MARKETING SYSTEM CONFIGURATIONS
NOTE: Offerings may vary by country. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - no dedicated LOM
EEPROM
11
Technical Guidebook - Page 12
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - Processor availability subject to implement global IT standards by region/ country. MT
DT
SFF
USFF
Intel® Quad Core Processors
Intel® Core...
Technical Guidebook - Page 13
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... in matched pairs, the computer will be installed in performance. To fully utilize 4GB or more of matched memory size, speed, and technology. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK -
Technical Guidebook - Page 14
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_14_ae8d.png)
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DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 DRIVES AND REMOVABLE STORAGE
MT Bays:
5.25-inch bay (External Optical)
2
Hard Drives Supported (Internal and External)
2
Optical Drives Supported
2
Interface:
SATA 2.0
3
SATA 3.0
1
3.5" ...
Technical Guidebook - Page 15
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...1
1
1
1
1
4
3
3
2
1 For hard drives, GB means 1 billion bytes; PCIe x16: GFX, USB 3.0, Serial, Parallel/Serial, NIC, Wireless; using DVD+R media provides maximum compatibility. 3 DVD-ROM drives may not be compatible with some existing drives and players; DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 1.6 DRIVES AND REMOVABLE STORAGE
Optical Drive: (SFF/USFF require slim-line...
Technical Guidebook - Page 16
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_16_5e06.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_16_5e06.png)
... optional PCIex1 card
2nd Serial via optional PCIex1 card Network Connector (RJ-45) PS/2 1394 Controller via optional PCI card USB 3.0 via optional PCIex1 card Video: VGA DisplayPort Audio: Line in for microphone Line in for microphone or stereo Line out...EXTERNAL PORTS/CONNECTORS
NOTE: MT supports full height card, DT supports low profile card. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK -
Technical Guidebook - Page 17
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_17_2d03.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_17_2d03.png)
... network infrastructure is required. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - SFF supports low profile... AND MOUSE
Dell USB Entry Keyboard (Ruby) with optional palmrest Dell Multimedia Pro Keyboard Dell Smartcard Keyboard Dell USB Optical Mouse Dell ...Audio Codec Internal Dell Business Audio Speaker Dell AX210 2.0 Desktop Speakers Dell AX510/AX510PA Flat Panel Soundbar Speakers
MT
...
Technical Guidebook - Page 23
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![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_23_9389.png)
... speed) Power consumption (standby operation) IEEE standards compliance (example 802.1P) Hardware Certifications (example FCC, B, GS mark...) Boot ROM Support Network Transfer Mode (example Full Duplex, Half Duplex)
Network Transfer Rate (example 10BASE-T (half-duplex) 10 Mbps...
1000 Mb (full-duplex)
23 SFF supports low profile card. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK -
Technical Guidebook - Page 24
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_24_833f.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_24_833f.png)
...MT supports full height card, DT supports low profile card. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - Broadcom NetXtreme 10/100/1000 PCIe Gigabit1 Networking Card
Connector Type...) IEEE standards compliance (example 802.1P)
Hardware Certifications (example FCC, B, GS mark...)
Boot ROM Support
Network Transfer Mode (example Full Duplex, Half Duplex) Network Transfer Rate (example ...
Technical Guidebook - Page 26
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_26_a826.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_26_a826.png)
... and SFF chassis.
DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - USB 3.0 ADD-IN CARD
NOTE: MT supports full height (FH) cards and DT and SFF supports low profile (LP) cards. USB 3.0 PORT PCIE ADD-IN CARD .... 2.0 X1
PCI Express one lane (x1) NEC µPD720200 2 * USB3.0 port Under 30 mA USB 3.0 A Type
Optional Optional
Win XP, Win Vista and Win 7 26 DELL WIRELESS 1520 PCIE MINI PCIE ...
Technical Guidebook - Page 41
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_41_eb19.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_41_eb19.png)
... (MCR) NOTE: Dell 19 in 1 Media Card Reader (MCR) is not available on selectable configuration. DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - W x H)
3.99/(10.13cm)/1.0/(2.54cm)
Weight (max) pounds/kilograms
~155g
Interface type and speed
USB 2.0, 480Mb/s
Media Supported ( maximum capacity supported will vary by Flash Media Types)
Media Supported
CF I CF II...
Technical Guidebook - Page 42
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_42_be27.png)
![](/manualimages/d/7/dell-optiplex-790-technical-guidebook-9ed8fe1_42_be27.png)
... USB, Rear Quad USB, PCI Slot) Enable (SATA-0, SATA-1, SATA-2, SATA -3)
Auto
All
Enable Disable Enable Enable
Enable Disable
Not set Not set Enable Disable Enable Deactivate Not set
Power Off Disable Disable Disable Disable
Set by the factory Optional User Entry Enable
Enable Enable Enable Enable Thorough
42 DELL™ OPTIPLEX™ 790...
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