Dell OptiPlex 7040 MT
Specification and Upgrade Options
The Dell OptiPlex 7040 MT is a scalable business desktop designed for heavy office workloads, content creation, and home flexibility. First released in 2015, it is built on the Q170 chipset and supports 6th gen Intel Core processors and up to 64GB of DIMM DDR4-2133 memory. Thanks to its larger chassis, it accommodates dedicated graphics cards, making it an excellent candidate for a gaming PC conversion or a high-performance workstation.
If you are looking for a system with maximum upgradability, Dell OptiPlex 7040 MT is a good option. Models in this category usually have 4x PCIe slots, several drive bays and better cooling.
Can you upgrade Dell OptiPlex 7040 MT to play games?
Yes, you can upgrade Dell OptiPlex 7040 MT for gaming with better processors, graphics card, memory, and storage devices. However, like many other business pre-built PCs, this model may have proprietary elements like the power supply, the chassis or the power connector, which can make it difficult for users to install aftermarket PSUs to support better GPUs. You can also find that there is space constrains inside the chassis, making it difficult to accommodete larger GPU to boost the gaming performance.
Does Dell OptiPlex 7040 MT support Windows 11?
No, Dell OptiPlex 7040 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.
Processor
The Dell OptiPlex 7040 MT supports Gen6 Intel Core technology on a Q170 chipset. 6th generation Intel Core CPUs (Skylake) represent a more modern baseline for productivity and development workloads. Lower-end CPUs are suitable for office use and programming, while higher-end i7 models can handle home lab setups, multiple virtual machines, and more demanding emulation. Gaming performance is acceptable with appropriate GPUs, though modern titles may expose CPU limitations.
Best CPUs for Dell OptiPlex 7040 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 |
GPU upgrade
The Dell OptiPlex 7040 MT can safely support GPUs with suggested PSU of 240W, but more powerful cards require a PSU upgrade. With the stock PSU model, it supports up to an GeForce GTX 1650 Super
GPU upgrade options for Dell OptiPlex 7040 MT with the stock 240W power supply:
| GPU | Power consumption | Memory | Req. |
|---|---|---|---|
| AMD RX 460 | 90 W | 4 GB DDR5 | *SATA to PCIe adapter |
| NVIDIA GTX 1060 | 118 W | 3 GB DDR5 | *SATA to PCIe adapter |
| NVIDIA GTX 1650 Super | 100 W | 4 GB DDR6 | *SATA to PCIe adapter |
GPU compatibility in the Dell OptiPlex 7040 MT depends on several hardware constraints. The physical space available inside the chassis determines the maximum GPU length, height, and thickness that can be installed. In addition, the installed power supply unit (PSU) must provide sufficient wattage and the required PCIe power connectors for the selected graphics card.
Before you begin shopping for a new GPU, it is important to check the power supply unit (PSU) currently installed. This is because the Dell OptiPlex 7040 MT is often sold with different PSU wattages depending on the original configuration.
Memory
Dell OptiPlex 7040 MT supports up to 64 GB of DIMM DDR4-2133 RAM across four DIMM slots, with memory speeds up to 2133 MT/s and dual-channel support depending on the installed configuration.
Actual supported memory capacity and memory channels may vary depending on the installed CPU and chipset.
Typical Dell OptiPlex 7040 MT memory configurations include 8 GB for everyday productivity and 16 GB for gaming, heavier multitasking, or professional workloads.
Wi-Fi Support
Dell OptiPlex 7040 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.
Wi-Fi and Bluetooth wireless adapter upgrades for Dell OptiPlex 7040 MT:
| Model | Speed | Frequency | Interface |
|---|---|---|---|
| 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
Dell OptiPlex 7040 MT provides a fixed set of external I/O ports for connecting peripherals and displays. Port availability and versions determine supported data transfer speeds and display capabilities.
USB ports
Dell OptiPlex 7040 MT includes ten USB ports in total in the following configuration - (6x) USB-A 3.0; (4x) USB-A 2.0; with no USB 3.1 ports available.
Video ports
Dell OptiPlex 7040 MT features two DisplayPort 1.2 outputs, suitable for modern digital displays.
HDMI output is provided via one HDMI 1.4 port.
Motherboard video outputs require a CPU with integrated graphics. Systems equipped with a dedicated GPU must use the video ports on the graphics card instead.
SSD storage - M.2 sockets and SATA ports
The Dell OptiPlex 7040 MT comes with four SATA port(s) for connecting storage devices.
Dell OptiPlex 7040 MT has also one M.2 socket(s) that supports PCIe NVMe (PCIe 3.0 x4) or SATA M.2 drives with speed of up to 4 GB/s. This configuration works very well for both gaming and work related tasks.
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.
*Keep in mind that some M.2 connectors may not support SATA SSDs. Check the motherboard manual to confirm compatibility.
Best PCIe NVMe drives for Dell OptiPlex 7040 MT storage upgrade:
| Model | Form factor / Interface | NAND type | DRAM |
|---|---|---|---|
| Samsung 980 PRO SSD | M.2/x4 PCIe 4.0/NVMe | TLC | Yes |
| CORSAIR MP600 PRO | M.2/x4 PCIe 4.0/NVMe | TLC | Yes |
| SAMSUNG 970 EVO Plus | M.2/x4 PCIe 3.0/NVMe | TLC | Yes |
| Western Digital Black SN770 | M.2/x4 PCIe 4.0/NVMe | TLC | Yes |
| Kingston A2000 | M.2/x4 PCIe 3.0/NVMe | TLC | Yes |
Power Supply
The Dell OptiPlex 7040 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.
