Dell OptiPlex 780 Support Question
Dell OptiPlex 780 Support Question
Find answers below for this question about Dell OptiPlex 780.Need a Dell OptiPlex 780 manual? We have 6 online manuals for this item!
Question posted by FDohelarl on September 17th, 2013
Dell Optiplex 780 Will Not Boot Power Light 1 And 3 Lights Flashing
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Current Answers
Answer #1: Posted by DreadPirateRoberts on October 16th, 2013 8:45 AM
DreadPirateRoberts
Member since:
November 19th, 2010 Points: 8,633,403
Member since:
November 19th, 2010 Points: 8,633,403
This will help you troubleshoot the beep codes
http://www.dell.com/support/troubleshooting/us/en/19/KCS/KcsArticles/ArticleView?docid=496582
http://www.dell.com/support/troubleshooting/us/en/19/KCS/KcsArticles/ArticleView?docid=496582
For laptops
If you are not hearing post beeps, it's always worth trying a Hard Reset as follows.
Shut down the notebook, unplug the AC Adapter and then remove the battery.
Hold down the Power button for a full minute. Re-insert the battery,
plug in the AC Adapter and start the notebook.
Related Dell OptiPlex 780 Manual Pages
Setup and Features Information Tech Sheet (Desktop, Mini-Tower, Small Form Factor) - Page 1
Dell™ OptiPlex™ 780 Setup and Features Information Tech Sheet
Front and Back View - About Warnings
WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Desktop
1
2
3
4
5
10
98
76
11 12
16
1 optical drive 3 USB 2.0 connectors (2) 5 power button, power light 7 network connectivity light 9 headphone connector
March 2010
15
14
13
2 ...
Setup and Features Information Tech Sheet (Ultra
Small Form Factor) - Page 1
...property damage, personal injury, or death. Dell™ OptiPlex™ 780 Ultra Small Form Factor Setup and Features Information Tech Sheet
Front View
1 2 3 4
5 6
1 CD/DVD drive 3 drive activity light 5 network activity light 7 headphone connector 9 USB connectors (2)
9
8
7
2 power button 4 diagnostic lights (4) 6 WiFi activity light (optional) 8 microphone connector
November 2009
Model...
Service Manual - Page 3
...the computer.
Turn off your personal safety.
Working on Your Computer
Dell™ OptiPlex™ 780 Service Manual-Desktop
Before Working Inside Your Computer Recommended Tools Turning Off Your Computer After...The color of cable, press in Working on its pins. Press and hold the power button while the system is flat and clean to avoid bending any connector pins. CAUTION...
Service Manual - Page 5
Back to Contents Page
Removing and Replacing Parts
Dell™ OptiPlex™ 780 Service Manual-Desktop
Cover Primary Hard Drive Floppy Drive (Optional) Expansion Card Memory Power Supply Fan System Board
Optical Drive Secondary Hard Drive (Optional) Riser Cage Standard Back Plate Heat Sink and Processor Coin-Cell Battery IO Panel
Back to Contents Page
Service Manual - Page 12
... desktop. Start the Dell ...OptiPlex™ 780 Service Manual Dell Diagnostics Power Button Light Codes Beep Codes Diagnostic Lights
Dell Diagnostics
When to Use the Dell Diagnostics
It is recommended that no diagnostics utility partition has been found, run .
Turn on Dell computers. Shut down your Drivers and Utilities media. NOTE: The next steps change the boot...
Service Manual - Page 17
... to Contents Page
System Setup
Dell™ OptiPlex™ 780 Service Manual-Mini-Tower, Desktop, and Small Form Factor
Boot Menu Navigation Keystrokes Entering System Setup System Setup Simulation System Setup Menu Options
Boot Menu
Press when the Dell™ logo appears to initiate a one -time boot menu with a list of the valid boot devices for the computer.
Action...
Service Manual - Page 24
.... 4. Disconnect the hard-drive data cable.
5.
Back to Contents Page
Primary Hard Drive
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer....practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Disconnect the hard-drive power cable.
Service Manual - Page 28
Follow the procedures in Before Working Inside Your Computer. 2.
Removing the Floppy Drive
1. Disconnect the floppy-drive power cable. Back to Contents Page
Floppy Drive
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the...
Service Manual - Page 36
Back to Contents Page
Power Supply
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer. Remove the optical drive. 3. Remove the secondary hard drive (if present). 4. Disconnect the processor power connector from the system board.
6. Removing the Power Supply
1. Remove the hard drive. ...
Service Manual - Page 42
Removing the Fan
1. Back to Contents Page
Fan
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer. Follow the procedures in Before Working Inside Your Computer. 2. Disconnect the fan power cable from the system board.
3.
For additional safety best practices information, see...
Service Manual - Page 55
... information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Follow the procedures in Before Working Inside Your Computer. 2. Disconnect the optical-drive power cable. Disconnect the optical-drive data cable.
3. Back to Contents Page
Optical Drive
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the...
Technical Guide - Page 3
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
MINI TOWER COMPUTER (MT) VIEW
FRONT VIEW 1 Optical Drive (optional)
2 Optical Drive Eject Button 3 Optical Drive Bay
7 Power Button, Power Light
8 Diagnostic Lights (4)
9 Headphone Connector
BACK VIEW 1 Power Connector 2 Back-Panel Connectors 3 Expansion Card Slots (4)
4 Power-Supply Vent 5 Chassis Lock Loop 6 Cover Release Latch
4 ...
Technical Guide - Page 4
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
DESKTOP COMPUTER (DT) VIEW
FRONT VIEW
1 Optical Drive (optional) 2 Optical Drive Eject Button
7 Network Connectivity Light
8 Microphone Connector
3 USB 2.0 Connectors (2)
9 Headphone Connector
4 Hard Drive Activity Light 10 Media Card Reader (optional)
5 Power Button, Power Light
6 Diagnostic Lights (4)
BACK VIEW 1 Expansion Card ...
Technical Guide - Page 5
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
SMALL FORM FACTOR COMPUTER (SFF) VIEW
FRONT VIEW
1 Optical Drive (optional) 2 Optical Drive Eject Button
7 Power Button, Power Light
8 Microphone Connector
3 USB 2.0 Connectors (2)
9 Headphone Connector
4 Network Connectivity Light
5 Diagnostic Lights (4)
10 Media Card Reader (optional)
6 Hard Drive Activity Light
BACK VIEW 1 ...
Technical Guide - Page 6
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
ULTRA SMALL FORM FACTOR COMPUTER (USFF) VIEW
FRONT VIEW
1 Optical Drive 2 Power Button, Power Light 3 Drive Activity Light
7 Headphone Connector 8 Microphone Connector 9 USB Connector 2.0 (2)
4 Diagnostic Lights (4) 5 Network Connectivity Light 6 WiFi Activity Light (optional)
BACK VIEW
1 Network Activity Light 2 Captive Thumbscrew 3 ...
Technical Guide - Page 17
... Yes
Yes
Yes Select No
No
Yes Select Yes
Yes
Yes Select No
No
Yes Select Yes
Yes
Yes Select Yes
Yes
17 DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
POWER
NOTE: These form factors utilize a more than one 12v rail)
BTUs/h (based on Sine Wave output for APFC PSUs, not an approximation...
Technical Guide - Page 18
...DMA) Power consumption (full operation per data rate connection speed) Power consumption (standby operation) IEEE standards compliance (example 802.1P) Hardware Certifications (example FCC, B, GS mark...) Boot ROM ... supports low profile card or full height card with optional riser. DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
AUDIO
INTEGRATED ADI 1984A HIGH DEFINITION AUDIO High ...
Technical Guide - Page 19
...mode (example Bus-Master DMA)
Power consumption (full operation per data rate connection speed)
Power consumption (standby operation)
IEEE standards compliance (example 802.1P)
Hardware Certifications (example FCC, B, GS mark...)
Boot ROM Support
Network Transfer Mode ..., Intel Core 2 Duo/ Quad Processor with optional riser. DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
COMMUNICATIONS -
Technical Guide - Page 20
... Fax Speeds Fax Mode Capabilities Error Correction and Data Compression Power Management Upgradeability Video Operating Temperature Operating Humidity Operating System Support Operating System Driver Support Power Requirements Chipset
Dimensions of full height card inches/centimeters (L X H)
Dimensions of 1 Gb/sec. DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
COMMUNICATIONS -
Technical Guide - Page 44
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
BIOS DEFAULTS (CONT.)
Power Management
Maintenance Post Behavior
AC Recovery: Auto On Time: Low Power Mode: Remote Wake Up: Suspend Mode: Fan Control Override:
Service Tag: Asset Tag: SERR Message:
Fast Boot: Numlock LED: POST HotKeys: Keyboard Errors: MEBx HotKey
Power Off Disable Disable Disable S3 Disable
Set by the...
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