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Small black square mini PC, barebone unit, no memory installed

minisforum

minisforum UM890 Pro Ryzen 9 8945HS barebone mini PC

SKU CH-5AY6-PD6A0

Barebone mini PC with Ryzen 9 8945HS, Radeon 780M graphics, dual 2.5 Gbps LAN, Wi-Fi 6E, Bluetooth 5.2, two USB4 ports, HDMI, DisplayPort and OCuLink for external GPU, supporting up to 96 GB DDR5 5600

  • ColorBlack
  • AI FeaturesAvailable
  • CPU TypeAMD Ryzen 9 8945HS
  • CPU SocketFP7 , FP7r2 , FP8
  • CPU Cores8-Core
  • Memory installedNo Memory

Options UM890 Pro · 0+0

Struck-through versions exist but are not stocked here.

  • 8-core Ryzen 9 8945HS reaches 5.2 GHz boost for responsive multitasking
  • Radeon 780M graphics with RDNA 3 architecture delivers capable 1080p gaming performance
  • Dual-channel DDR5 5600 support up to 96 GB for high-bandwidth workloads
  • Two 2.5 Gbps LAN ports plus Wi-Fi 6E and Bluetooth 5.2 ensure fast connectivity
  • USB4, HDMI and DisplayPort drive up to four displays including 8K at 60 Hz

Compact Ryzen 9 barebone

The minisforum UM890 Pro is a barebone mini PC built around an AMD Ryzen 9 8945HS processor with eight cores and sixteen threads. It targets builders who want a small-footprint system for productivity, light gaming or AI-assisted workloads and who prefer to supply their own memory and storage. Buyers needing a complete out-of-the-box unit or a discrete graphics card slot should look elsewhere.

Installation and common pitfalls

Two DDR5 5600 SO-DIMM slots accept up to 96 GB in dual-channel mode and are accessible after removing the bottom cover. The board also provides two PCIe 4.0 x4 M.2 2280 slots for SSDs. Note that using the OCuLink port for an external GPU consumes one M.2 slot and the connection is not hot-swappable, so plan the storage layout before assembling.

Sustained-load behaviour

The 4 nm Zen 4 chip runs at a 4.0 GHz base clock and can boost to 5.2 GHz, while the integrated Radeon 780M graphics deliver up to 14 percent higher single-thread performance than the previous architecture. Dual 2.5 Gbps LAN ports and Wi-Fi 6E maintain network throughput during long sessions, and the USB4 interfaces can power a 15 W portable display without a separate adapter.

Highlights

  • 8-core Ryzen 9 8945HS reaches 5.2 GHz boost for responsive multitasking
  • Radeon 780M graphics with RDNA 3 architecture delivers capable 1080p gaming performance
  • Dual-channel DDR5 5600 support up to 96 GB for high-bandwidth workloads
  • Two 2.5 Gbps LAN ports plus Wi-Fi 6E and Bluetooth 5.2 ensure fast connectivity
  • USB4, HDMI and DisplayPort drive up to four displays including 8K at 60 Hz

Specifications

BrandMINISFORUM
ModelDeskMini
ColorBlack
AI FeaturesAvailable
CPU TypeAMD Ryzen 9 8945HS
CPU SocketFP7 , FP7r2 , FP8
CPU Cores8-Core
Memory installedNo Memory
Memory slot2
Memory Type SupportedDDR5 5600
Max Memory Supported96GB
Dual Channel Memory SupportedYes
Other2x PCIe4.0x4
Integrated GraphicsAMD Radeon 780M
Max LAN Speed2.5Gbps
Wireless LAN802.11ax
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.2
HDMI1
DisplayPort1
Rear USB4
RJ452
Dimensions5.12x5x2.62inch
Weight1.5lb

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