OptiPlex 740 – Windows 7 and 8.1 64 Bit

This model and Operating System is not supported by Dell.

Recommended Hardware Upgrades

SSD – Solid State Drives

RAM – Random Access Memory

It is recommended to upgrade it to 8 GB of RAM:

Check what form factor you have before upgrading.

In addition to upgrade the video card:

Refer to the User’s Guide when upgrading components.

Legacy BIOS

See Updating the BIOS.

Windows OS

Windows 7 and 8.1 are now obsolete if you have these Operating Systems you should use them to take the Free Upgrade to Windows 10.

If you don’t have a Windows 7/8.1 license you have until the 2nd of October 2015 to upgrade to Windows 10 for free using the Windows 10 Insider 10130 as a stepping stone. See Free Upgrade from Windows Vista to Windows 10 (also works with Windows XP).

OS Updates

System utilities




Not all systems will have a modem.


For Windows 8.1 the best driver will be inbuilt.

Install the registry file and then the audio driver.

Card Reader

Dell Media Card Reader with Integrated Bluetooth Module (CAB-200), Media Card
Reader 19-1 with Integrated Bluetooth*

Dell Backup and Recovery

Note this system won’t be able to boot from a Rescue Disk (external hard drive) so make a Factory Backup (Bootable USB Flash Drive).

4 thoughts on “OptiPlex 740 – Windows 7 and 8.1 64 Bit

  1. Something is not right when trying to install a SSD on the Optiplex 740 Desktop Edition. It has SATA-2 ports, but no ACHI, tried to install an Intel 330 SSD I had extra, and the Toolbox reported the connection as IDE. Speeds were actually slower than the HDD!

    I believe this has to do with the NVIDIA chipset, which is now unsupported. It has an AMD CPU (Athlon X2 4850e), but it’s not a AMD motherboard.

    Is there a fix for this, maybe an add on card? I’ve upgraded the RAM to the max 8GB DDR2 PC2-6400. There is a PCIe card, however I’ve added a AMD Radeon HD 7570 GPU, which was stock in my newer XPS 8700. Graphics scores are great at 6.9 WEI, same with RAM. The added RAM gave the CPU a WEI boost as well.

    OS is Windows 7 Ultimate, dual booting with Linux Mint 17.1, both 64 bit.

    1. “This model and Operating System is not supported by Dell”.- Quote from above.

      If Dell isn’t supporting it, them whom is? NVIDIA? I did install their Dell System Software, but had to get driver updates from elsewhere, used the IObit Driver Updater (Free) Utility, it’s the best Free Driver updater out there. Unlike Slim Drivers, there were no errors shown upon install, and after reboot, everything simply worked.

      I did manually upgrade the AMD 7570 from their site, as well as installed their CPU driver. Personally, I feel I’d be better off to find a similar sized Optiplex motherboard, there were many produced, with Full Intel or AMD support, and install my new RAM sticks & GPU in there. That way, I’d have Full SATA support for the PC & can benefit from installing a SSD. Surely there’s a drop in replacement somewhere, it a matter of knowing which to get.

      Does anyone know which Optiplex motherboard (with part number if possible) would replace the one in the 740 Desktop edition with little effort? CPU brand doesn’t matter to me, as I can upgrade these cheap, many are on eBay for $30 or less.

  2. Orlando, you’ll have to find a PCIe SATA card, remove your add-on graphics card (if any) & install the card in the graphics slot. Then hope that the graphics doesn’t go out because a card is in the slot.

    This was a $29 PC for me, not much lost, unfortunately there’s no SATA-2 PCI cards, only SATA-1, with any luck, the SSD will then run faster than your HDD, yet not by much.

    I just don’t see what’s so ‘enhanced’ with these PC’s, that’s what it says at boot, seems like Dell would have included (or had NVIDIA to) some PCIe x1 ports for future expansion. I wished that someone would step forward who owns one of these & tell us if adding a PCIe card to the graphics port disables onboard graphics, there were hundreds of thousands of these PC’s distributed.

    Yet it runs Windows 10 Pro well, but handicapped to a HDD only.


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