minisforum DeskMini UM690L barebone mini PC Ryzen 9 6900HX 16GB LPDDR5 1TB

DeskMini UM690L barebone mini PC

The DeskMini UM690L is a barebone mini PC built around an AMD Ryzen 9 6900HX processor with eight cores and integrated Radeon 680M graphics. It ships with 16GB of soldered LPDDR5 6400 memory and a 1TB PCIe 4.0 SSD, targeting users who need a compact desktop for productivity or light creative work without assembling components themselves.

Sustained load behaviour

Under continuous load the eight-core processor runs up to 4.9 GHz while the Radeon 680M graphics operate at 2400 MHz, both cooled inside the slim chassis. The system supports triple display output at 8K 60 Hz via HDMI 2.1 and USB4 plus 4K 60 Hz via DisplayPort 1.4, so extended multi-monitor workloads remain stable. Network traffic uses a 2.5 Gbps Ethernet port alongside WiFi 6E and Bluetooth 5.2 for consistent connectivity during long sessions.

Installation and common issues

Memory is not upgradeable because the 16GB LPDDR5 is soldered, so buyers needing more RAM must choose a different platform. Storage expansion uses two M.2 2280 PCIe 4.0 slots supporting up to 2TB each, but the board does not accept 2.5-inch drives. The USB4 port accepts power delivery input of 65 to 100 W and can supply 15 W out, so an incorrect adapter may prevent boot. A clear CMOS button is provided for recovery if the BIOS becomes misconfigured.