Dell Optiplex 780 Intel Core 2 Duo 3.33GHz CPU 4GB RAM 750GB HDD Windows 10 Pro Minitower Computer (Refurbished)

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ITEM# 15291529
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Refurbished Item

Any price comparison, including MSRP or competitors' pricing, is to the new, non-refurbished product price. Learn More

ITEM#: 15291529

This DELL OptiPlex 780 Mini Tower computer comes with an Intel Core 2 Duo 3.33GHz Processor, 4096MB of DDR3 Memory, 750GB Hard Drive, DVDRW Optical Drive, and the Microsoft Windows 7 Professional (32-bit) Operating System.

Experience super fast computing at work or home with this OptiPlex 780 mini tower desktop from Dell. Intel Core 2 processing with an Integrated Intel Media Accelerator 4500 offers super crisp imaging and loading, whether you're a serious gamer or simply like to surf Internet videos. This complete setup features everything except the monitor so you can get started quickly.

  • Operating system: Microsoft Windows 7 Professional (32-bit)
  • Processor: 3.33GHz Intel Core 2 Duo
  • Memory: 4096MB DDR3
  • Hard drive: 750GB
  • Optical drive: DVDRW
  • Graphics: Integrated Intel Media Accelerator 4500
  • Audio: Integrated High Definition audio
  • Networking: Integrated Intel Gigabit Ethernet LAN 10/100/1000
  • Bays (available/total): (1/2) External 5.25", (0/1) External 3.5", (2) Hard Drive Supported
  • Slots: 2 PCI, 1 PCI Express x16 , 1 PCI Express x1
  • Ports: 8 x USB 2.0 (2 front, 6 rear), 1 x Serial, 1 x Parallel, 1 x VGA, 1 x Ethernet (RJ-45), 12 x eSATA, 2 x 3.5mm Audio Line-In, 2 x 3.5mm Audio Line-Out
  • Power Supply: 305W
  • Model: OptiPlex 780 MT
  • Included Items: Computer system, keyboard, mouse, power cord
  • Dimensions: 16.1" x 7.4" x 17"
  • Weight: 25.8 lbs

For state-specific electronic recycling and disposal information, please click here.

Please note: This item does not ship to Hawaii, Alaska or Puerto Rico.


CPU Type Core 2 Duo
Computer Memory 4 GB
Hard Drive Capacity 750 GB
Operating System Windows 7 Professional
Dimensions See Details
Warranty 90 Day Limited Distributor
Model Number OptiPlex 780 MT
Country of Origin China

Customer Reviews

5 Stars
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  • Most Helpful

  • Dell OptiPlex 780 3.33GHz 4GB 750GB MT Computer

    Extremely fast and so quiet. At times I can't tell if it is even on. Love it.

    Read More
  • Very Buggy Computer
    Verified Purchase

    I have bought refurbished desktops and laptops before from other companies for myself and employees. I am pretty technologically savvy. I had been using an XP based system, which was a refurb I had owned for 10 years. But, the time had come to upgrade to Windows 7 or 8 with XP support fading. I wanted a faster system, so rather than rebuild the current box, I just tried this out from Overstock. I took it right out of the box and pugged it far so good. It is considerably faster than the old XP. But, 10 minutes in to the set up....BLUE SCREEN OF DEATH!. The unit does not stay on for more than 10 minutes before crashing. The problem is a faulty driver for the video card. Seems the unit was a Vista system, prior to being refurbed...the driver conflicts with the Windows 7 Pro the refurb company installed. I have been tinkering around with several drivers, but at the present time, I have not been able to get it to function properly. I am waiting to hear back from the refurb company to see what can be done....but, it has been a major disruption in my weekly output for my business. Play with fire, I guess, and eventually you get burned. I would still consider buying a refurb, but the odds of this type of thing caught up with me, I guess.

    Read More
  • Most Recent

  • Dell 780 refurb'd PCs
    Verified Purchase

    Works great, as has all the refurbed PCs we've gotten from Overstock. Helps the private schools budget too!

    Read More
  • Great Deal
    Verified Purchase

    Spent a few weeks looking at refurbs here & elsewhere, but decided on this old Dell refurb. Very pleased with my decision. PC arrived packed superbly. It's perfect for my needs, and a great price.

    Read More
  • Love it when a plan comes together
    Verified Purchase

    Worked as it should right out of the box. The packaging was a little questionable, but no damage was found. This is the 3rd Dell refurbished unit we have had, no issues. Great Product, Great Service, Thank YOU.

    Read More
  • ok
    Verified Purchase

    Good quality, Easy set-up, Fuctioning well, Easy purchase, and delivery

    Read More
  • Verified Purchase

    Read More

Questions & Answers

  • Q:

    "can this win version be upgraded to win 10"

    • A:

      Hello tdugan, yes, this can be upgraded to the latest Windows 10. Have a great day!

  • Q:

    "I own a Dell OptiPlex 780 Minitower with an Intel Core 2 Duo 3.33 GHz processor. I would like to buy another one, but not if it has a built-in floppy drive. Can you advise if yours does or not?"

    • A:

      Hello retiredleo, this item does not feature a floppy disk drive. Thank you for shopping with us.

  • Q:

    "does it have a 1.44 floppy drive"

    • A:

      Hello paddy123, no, it does not. Thank you for shopping with us!

  • Q:

    "Why did you choose this product?"

    • A:

      prior good experience with overstock / dell computers

    • A:

      Price point, warranty, includes recovery disk instead of partition

    • A:

      this looks like it will fulfill my needs, i like Dell

    • A:

      The amount of GHz it has. I needed a desktop it this suits my needs.

    Read more Read less
  • Q:

    "Can memory be upgraded from 4096MB of DDR3 Memory or is that max memory?"

    • A:

      Hello mrcaine, we do not recommend making any altercations to this, doing so will void any warranty and cannot be returned. Thanks for shopping with us!

  • Q:

    "Does this particular Dell OptiPlex 780 (Item # 15291529) have a memory card reader or a floppy disk drive or neither one?"

    • A:

      Hello retiredleo, this product has a floppy disk drive and a port for an external media card reader. Hope this information was helpful. Thank you for shopping with us!

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Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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Standard Return Policy for Electronics:

The items must arrive at our warehouse within 30 days of purchase. You must return items in their original condition to qualify for a full refund. We will issue a partial refund of up to 70 percent if returned items have been opened, used, or returned late. More Details


This item cannot be shipped to Alaska or Hawaii. More details

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** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.