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 michaelthiyombewe on June 19th, 2021
Air Sensor
Where is Dell optiplex 780 air temperature sensor located
Current Answers
Answer #2: Posted by hzplj9 on June 20th, 2021 12:21 PM
hzplj9
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Member since:
June 25th, 2012 Points: 4,873,610
Referring to the service manual there is no mention of a thermal sensor. Most items within the unit have their own thermal sensors which will cause them to stop in the event of overheating.
https://www.manualslib.com/manual/678395/Dell-Optiplex-780.html#product-Optiplex%20780
The CPU fan will have a sensor which feeds data back to the system board which tells it when the CPU is too hot and will shut down the system PCB.
Hope that helps.
Answer #3: Posted by SonuKumar on June 20th, 2021 7:39 PM
SonuKumar
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The air temperature sensor is located just behind the air intake vent in the front of the system.
https://www.dell.com/support/kbdoc/en-in/000136592/air-temperature-sensor
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Related Dell OptiPlex 780 Manual Pages
Setup and Features Information Tech Sheet (Desktop, Mini-Tower, Small Form Factor) - Page 1
...
2 optical drive eject button 4 drive activity light 6 diagnostic lights (4) 8 microphone connector 10 Media Card Reader (optional)
Models: DCSM1F, DCNE1F, DCCY1F, DCSM, DCNE, and DCCY series 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.
Service Manual - Page 1
...injury, or death. Intel, Core, and Celeron are not applicable. CAUTION: A CAUTION indicates potential damage to either trademarks or registered trademarks of Dell Inc. Dell™ OptiPlex™ 780 Service Manual
Desktop Computer
Working on Your Computer Removing and Replacing Parts Specifications Diagnostics System Setup
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important...
Service Manual - Page 3
...: The color of cable, press in Working on Your Computer
Dell™ OptiPlex™ 780 Service Manual-Desktop
Before Working Inside Your Computer Recommended Tools Turning Off Your Computer ..., not by a certified service technician. Hold a component such as the metal at www.dell.com/regulatory_compliance. As you disconnect the cable. Ensure that came with locking tabs; 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
... Microsoft® Windows® desktop. Turn on Dell computers. When the boot device list appears, highlight Boot to Use the Dell Diagnostics
It is optional and ...Dell Diagnostics software works only on (or restart) your computer. 2. Back to Contents Page
Diagnostics
Dell™ OptiPlex™ 780 Service Manual Dell Diagnostics Power Button Light Codes Beep Codes Diagnostic Lights
Dell...
Service Manual - Page 17
... the boot menu does not make any changes to the boot order stored in the BIOS.
Back 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...
Service Manual - Page 22
... view the following illustrations. 1. Removing the Cover
NOTE: You may need to install Adobe Flash Player from Adobe.com to Contents Page
Cover
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...
Service Manual - Page 24
...additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. If present, remove the secondary hard drive from the ...Computer. 2. 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.
Service Manual - Page 28
....
3. 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.
Service Manual - Page 32
... and then ease the card up and out of its connector on the card-retention latch upwards. 3. Back to Contents Page
Expansion Card(s)
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 34
... in Before Working Inside Your Computer. 2. Press out on the securing clips at www.dell.com/regulatory_compliance.
Lift the memory module out of the memory module connector.
3. Back to Contents Page
Memory
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer...
Service Manual - Page 36
Remove the secondary hard drive (if present). 4. 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 hard drive. 5. Disconnect the processor power connector from ...
Service Manual - Page 42
... system board. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Follow the procedures in Before Working Inside Your Computer. 2. 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...
Service Manual - Page 45
Remove the heat sink and processor. 4. Remove the memory. 5. Removing the System Board
1. Remove the riser cage. 3. Back to Contents Page
System Board
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer. Disconnect the floppy-drive data cable from the system...
Service Manual - Page 55
.... Disconnect the optical-drive data cable.
3.
Removing the Optical Drive
1. Follow the procedures in Before Working Inside Your Computer. 2. Back to Contents Page
Optical Drive
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer.
Service Manual - Page 59
.../regulatory_compliance. Remove the optical drive from the computer. 3. Follow the procedures in Before Working Inside Your Computer. 2. Back to Contents Page
Secondary Hard Drive (Optional)
Dell™ OptiPlex™ 780 Service Manual-Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your computer.
Disconnect the hard-drive data cable.
Service Manual - Page 63
... the Riser Cage
1. Disconnect the PS/2 serial-port cable from the system board.
3.
Pivot the riser-cage handle to Contents Page
Riser Cage
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 68
...
To replace the standard black plate, perform the above steps in Before Working Inside Your Computer. 2.
Back to Contents Page
Standard Back Plate
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 70
Removing the Heat Sink and Processor
1. Back to Contents Page
Heat Sink and Processor
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. For ...
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 ...
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