Dell Optiplex 780 3.16GHz 750GB MT Computer (Refurbished)

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ITEM# 14998650
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    • Warranty
      Included Warranty: 1 year Distributor
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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#: 14998650

    This Dell OptiPlex 780 Mini Tower computer comes with an Intel Core 2 Duo 3.16GHz processor, 4GB of DDR3 memory, 750GB hard drive, DVDRW optical drive, Integrated 10/100/1000 LAN, and the Microsoft Windows 7 Home Premium (32-bit) operating system. This high-quality Dell OptiPlex computer makes a great addition to any home office or study. With its sleek look and quality performance, it can provide users with a great experience while improving the appearance of the workstation. The computer system, keyboard, mouse and power cord are included in the purchase for easy one-stop shopping.

    • Operating system: Microsoft Windows 7 Home Premium (32-bit)
    • Processor: 3.16GHz Intel Core 2 Duo
    • Memory: 4GB DDR3 Memory
    • Hard drive: 750GB
    • Optical drive: DVD+/-RW
    • Graphics: Integrated Intel Graphics Media Accelerator 4500
    • Audio: Integrated High Definition Audio
    • Networking: Integrated Gigabit Ethernet LAN 10/100/1000
    • Number of Bays: (1) external 3.5-inch, (2) external 5.25-inch, (1) internal Hard Drive Supported
    • Slots: (2) PCI, (1) PCIe x 16, (1) PCI x 1
    • Ports: 8 x USB 2.0, 1 x serial, 1 x eSATA, 1 x serial, 1 x Ethernet (RJ-45), 1 x VGA, 1 x Display, 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

    This high-quality item has been factory refurbished. Please click on the icon above for more information on quality factory-reconditioned merchandise.
    Operating system DOES NOT include Microsoft Office

    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 Home Premier
    Dimensions See details
    Warranty 1 year Distributor
    Model Number OptiPlex 780 MT
    Country of Origin China

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Helpful

    • Dell Optiplex 780
      Verified Purchase

      Great Computer, I had some problems with the first one, but Overstock.coms excellent Customer service took care of me, and 2nd day aired me another one. No problems with the new one, Overstock rocks!

      Read More
    • Good computer but not for novice.
      Verified Purchase

      No documentation supplied with computer other than two pages explaining Windows 7 activation. Went to Dell web support and entered service number. Downloaded user manual for computer along with original specification, then had Dell web support scan computer to document present specification. While there I checked updates and found flash bios had update available which I downloaded and installed. This is not a computer for novice. I would recommend it to friends that have substantial computer knowledge. No software other than Windows 7, but I expected that. I have been able to run most of the old programs I had by having Windows 7 run them in Windows XP mode. Most computer novices would probably not know how to do this and would end up having to buy a lot of software.

      Read More
    • owner
      Verified Purchase

      I have 4 of these in my office and all run continuous and perfectly, bought an extra because price came down and I wanted a backup.

      Read More
    • Dell OptiPlex 780 Mini Tower
      Verified Purchase

      Except for a minor dent at the bottom rear, it's in very good condition and is very clean inside the case. The included Micro keyboard and mouse are cheap quality, so I switched to a Logitech set. Setup and activation was easy and went without a problem. It came with 2 - 2 GB DDR3 PC3-8500(DDR3-1066) modules. It came with a DVD+/-RW drive instead of a DVD/CDRW drive like my previous refurbished Dell desktops did, so I'm able to burn both CD's and DVD's in it.

      Read More
    • Most Recent

    • Very good for the price
      Verified Purchase

      I let my computer savvy friend pick this for me. As he said,, it has more features than any that I have previously owned and I am quite happy with! I pray that when this one get just too old and outdated as they all seem to do, that I am as lucky the next time that I head to once again for my computing needs.

      Read More
    • computer
      Verified Purchase

      works fine no problems yet and easy to set up

      Read More
    • home
      Verified Purchase

      very happy with the OptiPlex

      Read More
    • Great Value - Fast Shipping
      Verified Purchase

      My old Dell was getting close to the end of it's useable life span so I purchased this to transfer my my old PC files and programs to. This refurbished Dell OptiPlex 780 has exceeded all my expectations and works like a charm. Only notable problem was the DVD player/burner was improperly installed (no side screws to keep it secure and level in the slot) so I had to remove it, add two screws, and reinstall it correctly.

      Read More
    • Verified Purchase

      Read More

    Questions & Answers

    • Q:

      "I noticed a GRAPHICS card in first expansion slot and see its DVI, the port on the mother board looks like VGA?? Which is correct? I don't want to get this and later find out my monitor won't work. THANKS"

      • A:

        Hello Cliff30126, this item does feature a VGA port. Please feel free to contact us again with any further questions. Thank you for shopping with us!

    • Q:

      "window 10 upgrade possible?"

      • A:

        Hello ruper, yes, this can be upgraded to Windows 10. Thank you for shopping with Overstock!

    • Q:

      "will this unit burn DVDs?"

      • A:

        Hello ruper, yes, this will burn DVD's. Thank you for shopping with Overstock!

    • Q:

      "Is this wireless wi fi compatible?"

      • A:

        Hello Steve1959, no, this computer is not WiFi compatible. Thank you for shopping with us!

    • Q:

      "Who is the distributor for this computer ? I would like more information other than just 1 year and through the distributor. Parts and labor ? Any other details would make the dicision for me"

      • A:

        Hello Doug, the 1 year distributor warranty is covered by and covers only manufacturer defects. For specific warranty information, please contact us at one of our available methods here: ( Thanks for shopping with us!

    • Q:

      "I am sorry ! I meant could it be installed on the mother board ! Also I was thinking of getting a NVIDIA GTX 750 video card for this Computer instead of the GTX 550 ! Please let me know as soon as possible ! Because my computer is about to have it's last day !!"

      • A:

        Hello Jerry P, The Power Supply for this Dell 750 MT is 305W and GTX 550 requires a Power Supply higher than 400W. However, GTX750 requires 300W or higher Power Supply so you can install GTX750 but may not be stable depending on other components in that computer.

    • Q:

      "I would like to put a GTX 550 video card in this computer ! Is it possible ??"

      • A:

        Hello Jerry P, no, the Power Supply for this Dell 780 MT is 305W and GTX 550 requires a Power Supply higher than 400W. Thank you for shopping with us./

    • Q:

      "can any one tell me that ram sharing is available in this pc??"

      • A:

        Hello MD Shah, no, ram sharing is not available. Thanks for shopping with us!

    • Q:

      "Why did you choose this product?"

      • A:

        it seemed like a good deal to me

      • A:

        I needed a computer ! Because my computer is going down hill ! Also I like Dell !

      • A:

        replacing older dell with xp. to newer operating system and optimal features compared pricing to several sources and extended service warrantee and free shipping

      • A:

        I know and trust the Dell computer.

      Read more Read less
    • Q:

      "Suppose we want W7 but 64bit and the professional version. How much does that raise the price? Suppose we do not want any RAM installed, since we already have some RAM options, ready for installation. How much does that lower the price? Do any of these adjustments shorten the warranty for the parts in the machine, as received from Overstock?"

      • A:

        Hello alphaa10, I'm sorry we do not have different options than what is on the product page. If this item is altered it could void the warranty. Have a great day!

    • Q:

      "Does that Dell OptiPlex 780 minitower have a floppy disk drive or a memory card drive or neither?"

      • A:

        Hi retiredleo, the Dell Optiplex 780 3.16GHz 750GB MT Computer (Refurbished) comes with a 3.5 floppy disk drive. Thank you for shopping with us!

    • Q:

      "what kind of warrantee does this machine have? Is this machine refurbished by an microsoft authorized refurbisher?"

      • A:

        Hello jdg123, the Dell Optiplex 780 3.16GHz 750GB MT Computer (Refurbished) comes with a 1 year Distributor warranty which is by an Microsoft authorized refurbisher. Please feel free to contact us again with any further questions. Thank you for shopping with us!

    • Q:

      "what type of harddrive/optical drive - sata?"

      • A:

        Both the hard drive and optical drive are SATA models.

    • Q:

      "Does it have a slot to insert additional Hard Disk? I have a Dell Dimension 4600 Hard disk."

      • A:

        Thank you for your question. Yes the is an additional insert slot. Have a great day!

    • Q:

      "Does it have integrated or optional wireless LAN?"

      • A:

        Optional wireless LAN

    • Q:

      "Does it have 2 - 2 GB modules or 4 - 1 GB modules of RAM?"

      • A:

        It has 4-1GB modules.

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    Usually leaves our warehouse in 1-2 business days. *

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    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


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