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Dell OptiPlex 780 MT Desktop Computer (Intel Core 2 Duo E8400 ...

Rattling fan

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Replace it


Posted on Jun 03, 2015


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: AMD or Intel Processor for desktop gaming and animation purpose

when it comes to new processors i would definatly suggest any intel from the core 2 series. AMD is having problems with overheating and has all but abandoned thier quest for quad core glory.

Posted on Jan 25, 2009

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SOURCE: Upgrade the CPU in a Dell Dimensions XPS Gen 4

The fastest processor for that motherboard is the Northwood. 3.46 Extreme Processor:

Since the Dell chassis is proprietary, a standard motherboard will not easily adapt, it would be better to replace the system than to try an upgrade this one.

Posted on Dec 28, 2009

Testimonial: "Very helpful advice and too the point. Based on this information, I plan to build rather than upgrade my Dell. Thanks, Dageezer!"

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SOURCE: hi can u tell features of dell optiplex 780 deskt...

Energy Efficient Design, Environmental Responsibility
With its energy-efficient, environmentally conscious design, the OptiPlex 780 reflects the potential benefits to your operations and your bottom line.

desktop-optiplex-780-usff-overview-block4-small-a.jpg spacer.gif Energy-Conscious Features: The OptiPlex 780 offers Dell Energy Smart power settings and optional high-efficiency power supplies on select configurations. The Dell Client Energy Savings Calculator also lets you estimate energy usage for multiple customized OptiPlex systems.
desktop-optiplex-780-usff-overview-block4-small-b.jpg spacer.gif ENERGY STAR® Compliance: As an ENERGY STAR-compliant partner, Dell has designed select configurations of the OptiPlex 780 to comply with ENERGY STAR 5.0 standards for energy efficiency.
desktop-optiplex-780-usff-overview-block4-small-c.jpg spacer.gif High Environmental Standards: Select configurations of the OptiPlex 780 qualify for an EPEAT® Gold rating. Gold is the highest standard in the Electronic Product Environment Assessment Tool (EPEAT), a set of performance criteria for evaluating electronic products' environmental attributes in both public and private sectors.
spacer.gif Security for Your Business
The OptiPlex 780 gives you the power to choose your level of security, from hardware to software, local or remote. Simply match the security options with your organization's priorities to help keep your critical information protected.

  • Network Protection: Intel® vProTM technology helps to isolate system threats, offering excellent protection for your network infrastructure.
  • Built-in TPM 1.2: Integrated Trusted Platform Module (TPM) 1.21 security provides hardware-level protection of data and passwords.
  • Hard-Disk Security: Secure critical data with optional full-disk-encryption drives or solid-state drives, and choose optional ProSupport4 Certified Data Destruction and ProSupport4 Hard Drive Data Recovery services for additional layers of data security.

Posted on May 23, 2010

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SOURCE: i need driver for my Lenovo ThinkCentre M58e 7298

Hi names Rui, qst of what kind of driver do you need cause their are many types like audio,video,dvd/cd, mouse/keyboard, motherboard, system, etc. so pls try to give what type of driver do you need.

Posted on Jul 20, 2011

SOURCE: dell optiplex 745

Does it boot up into windows and allow you to work on it before it shuts down? Or does it shut down during the boot up process?

It sounds like it might be running hot or you have a virus or infection that causes it to shut down.

One sure sign of a computer that is running hot is to try and restart it as soon as it shuts down. If it's running hot it will not restart until you let it sit a while and cool off, then it will restart successfully.

Three things that will make a computer run hot:

1) Dust - Dust inside the computer, dust clogging the vents, fans, cpu and heatsink. Solution- Remove the case and take a can of compressed air and blow out the dust.

2) A Fan not working. Make sure the cpu fan works and the fan inside the power supply. If not replace them.

3) The Thermal Paste around the cpu and heatsink has dried up or is too thin to keep the unit cool. Remove the fan that sits on top of the cpu and heat sink, remove the heatsink, release the latch that holds the cpu in the slot and remove the cpu (remember how it goes into the slot). Clean off the old thermal paste then put the cpu back into the slot and put the latch that holds it back on. Put a fresh coat of Thermal Paste on the cpu. Turn the Heatsink over and remove the old thermal paste from it and apply a fresh coat of Thermal Paste. Put it all back together and reboot.

Download and Install MalwareBytes and run a Quick Scan.

Go to and in the search box type: "Download cnet Malwarebytes" (without the quotes). Download and install malwarebytes from the sites download.cnet/malwarebytes. When the site opens up click on the Green Download button on the left. Do not click the Red Download button, that's junk. When it finishes installing the Gui Interface will open up with an offer to Accept a Trial Version or Decline. CLICK DECLINE you want the totally free version. Run a QUICK SCAN. As it scans, if it finds infections the number will be in red. When it finishes scanning, click SHOW RESULTS. A notepad text document will open up showing you the results. You can close the text document and go back to the Gui Interface where you will click REMOVE SELECTED RESULTS. The objects will already be selected for you. When it finishes removing the objects click ok and it will sometimes reboot your machine.

Posted on Jun 06, 2012

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Is there an SD card slot on the Dell OPTIPLEX 780?

There is no card reader on most models of the Optiplex 780. There may be a card reader on the SFF unit. The MT, desktop and USFF do not include a card reader. You can add a 3.5" internal card reader to the MT or desktop models for under $20. You could use an external USB card reader with any Optiplex 780.

I hope this helps.

Cindy Wells

Apr 01, 2013 | Dell OptiPlex 780 MT Desktop Computer...

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Internal speaker sound is not comin in dell optiplex 780

Mr. Dev
Its the fault from the motherboard but i can help you
Please change the front panel's whole audio connector for the same after that issue will resolved..

Thanks ]
Dhiren Motivaras

Sep 16, 2011 | Dell OptiPlex 780 MT Desktop Computer...

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Dell optiplex 780 shutdown automaticaly

The desktop could be overheating and shutting down.
To fix this problem, please click on this link :-

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