Dell OptiPlex 3040 MT
Specification and Upgrade Options
The Dell OptiPlex 3040 MT is a pre-built business desktop computer first released in 2015. Although more than five years old, it is still a viable solution for home, office, and when properly upgraded – gaming. The motherboard is using the H110 chipset and supports 6th gen Intel Core processor, 16GB of DIMM DDR3L-1600 memory, and dedicated graphics card.
Dell OptiPlex 3040 MT is a Mini Tower form factor computer. The Mini Tower is the largest chassis in the business class desktops segment. If you are looking for a system with maximum upgradability, Dell OptiPlex 3040 MT is a good option. Models in this category usually have 4x PCIe slots, several drive bays and better cooling.
Windows 11 compatibility
No, Dell OptiPlex 3040 MT does not meet the Windows 11 hardware requirements. According to Windows 11 specification, all models with Intel 7th Gen CPU or older are not officially supported. Processor with TPM 2.0 and a UEFI Secure boot BIOS is also required in order to upgrade from Windows 10 to Windows 11 through Windows Update.
However, anyone with PC that does not pass the upgrade test can download the official Windows 11 ISO, make a bootable flash drive, and install the OS manually.
The Dell OptiPlex 3040 MT supports Gen6 Intel Core technology. Intel introduced the 6th generation of its Core CPUs in August 2015. Named Skylake, it uses the same 14nm manufacturing process like the old 5th gen. The improvements are better CPU and GPU performance and reduced power consumption. Other enhancements include Thunderbolt 3.0 and SATA Express.
Best CPUs for Dell OptiPlex 3040 MT upgrade:
|Model||Cores (Threads)||Base frequency||Turbo|
|Core i5 6500||4(4)||3.2 GHz||3.6 GHz|
|Core i5 6600||4(4)||3.3 GHz||3.9 GHz|
|Core i7 6700||4(8)||3.4 GHz||4.0 GHz|
Dell OptiPlex 3040 MT has two RAM slots. This is more than enough for most users. For those of you who need extra flexibility and RAM size, go for a model with 4 memory slots.
To cover the needs of your OS, games, and apps, Dell OptiPlex 3040 MT supports up to 16 GB of DIMM DDR3L-1600 RAM. For office work, home use, and light gaming we recommend 8GB of RAM. For everything else, use 16GB or more.
Faster RAM speeds permit your processor to access the data stored inside the memory faster. This is important for the overall speed of your system. The motherboard of the Dell OptiPlex 3040 MT supports RAM speeds of up to 1600 MT/s.
Dell OptiPlex 3040 MT doesn't come with any on-board Wi-Fi support. In that case, you have two options to upgrade this model with Wi-Fi. You either use an external USB Wi-Fi adapter (wireless network dongle) or a PCIe-based wireless adapter.
The USB dongle is much more convenient and easy to install, but has less space for a decent antenna and can have thermal problems. On the other hand, the PCIe based adapter is much more powerful, more reliable, and has better antenna, but it is harder to install.
Best Wireless adapters for Dell OptiPlex 3040 MT:
|WiFi 6E (Gig+) Kit||3000 Mbit/s||2.4GHz / 5GHz||NGFF M.2 A/E Key|
|Rekong AX210||3000 Mbit/s||2.4GHz / 5GHz||NGFF M.2 A/E Key|
|Gigabyte GC-Wbax200||2400 Mbit/s||2.4GHz / 5GHz||PCIe|
|TP-Link Archer TX50E||2400 Mbit/s||2.4GHz / 5GHz||PCIe|
|TP-Link Archer T9UH||1300 Mbit/s||2.4GHz / 5GHz||USB 3.0|
Ports are important and often people don't think about them when buying a PC. For example, if you don't have enough USB ports, using external devices becomes problematic. Before you buy any system, considering your use case, check the number of external devices you are going to use and plan the number of the extension ports accordingly.
The Dell OptiPlex 3040 MT comes with eight USB ports in total. Having more USB ports is always better, but also pay attention to the version of those USB ports. Higher version ports support faster transfer speeds. Unfortunately, this model doesn't come with a USB 3.1 port. If you need a faster connection for your peripherals, like external Solid State Drive, you will need to choose another model.
The DisplayPort (DP) is the most widely used digital interface for transmitting digital video and audio between display devices and PCs. It is good to see that the Dell OptiPlex 3040 MT is featuring a DisplayPort 1.2. The post version is important if you target higher resolutions with high refresh rate. Although, ver. 1.2 is completely fine for most users, if possible, aim for the higher versions DisplayPort.
The HDMI port is another digital video port you can use to connect external display. It has very similar capabilities to the DisplayPort with few exceptions. Dell OptiPlex 3040 MT comes with one HDMI 1.4 port(s) on the motherboard. In case your monitor supports another interface, you can always use an adapter.
*Please keep in mind in order to use the video ports available through the motherboard, you need a CPU with integrated graphics card. If you have a dedicated GPU, use his ports instead.
SSD storage - M.2 sockets and SATA ports
The SATA port is one of the places where you can connect a stora gedevice. The Dell OptiPlex 3040 MT comes with three SATA port(s). Not enough SATA ports might limit your options for additional storage devices. Think about your use case and decide if the SATA ports provided by this model will be sufficient.
Unfortunately, the Dell OptiPlex 3040 MT has no M.2 PCIe soket and you have to rely on the available SATA ports to connect your drives.
The M.2 PCIe SSD connector in combination with an NVMe drive allows for higher transfer rates, compared to the old SATA interface. In some situations, NVMe device connected to the M.2 PCIe socket can be more than 5 times faster.
The Dell OptiPlex 3040 MT comes with a 240 Watt PSU. Having a power supply with high power rating is important, especially if you are doing upgrade with addtional components, like dedicated GPU and more HDDs. Will this 240 W be enough, it all depends on your specific use. Please keep in mind that some models might have more than one PSU option. Whenever possible get the most powerful one, as it might make future upgrades easier.