MT & SFF (half height): PCIe x16, 3x PCIe x1, M.2 80 mm, M.2 30 mm (WiFi only) (Micro: M.2 80 mm, M.2 30 mm (WiFi only)) After successfully migrated the OS, system restart AND YOU HAVE TO GO TO BIOS, change the boot sequence TO THE NEW NVME SSD (it shows up as PATA SS or something similar) and choose UEFI Boot (don’t choose legacy). If you can troubleshoot, narrow down the issue by reseating the memory modules and swapping inknown good modules, if available. Also, the Dell Optiplex 3020 supports some dedicated graphics cards as well. You can get the desktop with an AMD RADEON HD 7570 GPU which has a dedicated VRAM of 1 GB. In addition to the various types of diagnostics LEDs, there are several audible beep codes across all the models of these computers.

Dell offers the Optiplex 3020 in three innovative form factors. The availability of several form factors enables users to choose the size that perfectly suits their workspace. Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Below the power button and the printed text, there’s a region containing the optical drive running vertically. The optical drive eject button and the optical drive LED are both located on the optical drive cover. Dell™ OptiPlex™ GX400 System User's Guide" (PDF). Archived (PDF) from the original on 29 October 2022.

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.The Dell Optiplex 3020 model I reviewed shipped with a 7,200 rpm SATA HDD in a 2.5-inch form factor. The hard disk drive has a capacity of 500 GB.