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Black mid-tower case with tempered glass side panel and liquid cooling visible inside

Adamant Custom

Adamant Custom Ryzen 9 9900X3D RTX 5090 64GB DDR5 8TB NVMe 10TB HDD gaming PC

SKU CH-6Z3A-V7682

A 12-core Ryzen 9 9900X3D workstation with RTX 5090 32GB GPU, 64GB DDR5, 8TB NVMe and 10TB HDD for modelling, editing, rendering and AI learning

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • AI FeaturesAI Ready
  • UsageWorkstation
  • ColorBlack
  • 12-core Ryzen 9 9900X3D up to 5.50 GHz for heavy multitasking
  • RTX 5090 32 GB GPU handles 4K rendering and AI workloads
  • 64 GB DDR5 memory with four slots expandable to 192 GB
  • 8 TB NVMe SSD plus 10 TB HDD gives massive fast storage
  • 240 mm liquid cooler keeps CPU temperatures low under sustained load

Build Purpose

This tower workstation pairs a 12-core Ryzen 9 9900X3D processor with an RTX 5090 graphics card carrying 32GB of video memory. Sixty-four gigabytes of DDR5 system memory and an 8TB NVMe array support modelling, editing, rendering and AI learning workloads. A 10TB hard drive adds bulk storage for project archives. The system ships with Windows 11 Pro installed.

Thermals and Power

A 240mm liquid cooler handles the CPU while three 120mm front fans and a 140mm power-supply fan move air through the Antec P20 chassis. Dust filters on the bottom, front and top panels reduce particulate build-up. The 1200W 80 PLUS Gold unit uses Japanese main capacitors and provides over-voltage, under-voltage, over-power and short-circuit protection.

Sustained Load Behaviour

Under continuous compute or render tasks the 128MB L3 cache and 24 threads maintain throughput at clocks up to 5.50 GHz. The NVMe drives deliver sequential reads up to 7450 MB/s and writes up to 6900 MB/s for steady asset streaming. Wi-Fi 7 and 2.5Gb Ethernet keep network transfers consistent during long sessions.

Highlights

  • 12-core Ryzen 9 9900X3D up to 5.50 GHz for heavy multitasking
  • RTX 5090 32 GB GPU handles 4K rendering and AI workloads
  • 64 GB DDR5 memory with four slots expandable to 192 GB
  • 8 TB NVMe SSD plus 10 TB HDD gives massive fast storage
  • 240 mm liquid cooler keeps CPU temperatures low under sustained load

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorTower
AI FeaturesAI Ready
UsageWorkstation
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeAMD Ryzen 9 9000 Series
CPU NameAMD Ryzen 9 9900X3D
CPU Socket TypeAM5
GPU/VGA TypeGeForce RTX 5090
Graphics InterfacePCI Express x16
Memory Capacity64GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD8TB NVMe
HDD10TB
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
LAN ChipsetIntegrated
LAN Speed2.5Gbps
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
RJ451 port

Questions about this item

How do I install the 240mm AIO liquid cooler on the AM5 socket, and what step is often missed?

Mount the supplied AM5 bracket onto the motherboard backplate, apply thermal paste, then secure the cold plate with the four spring screws in a cross pattern; the step often missed is removing the protective film from the cold-plate base before mounting.

What maintenance or replacement will the 240mm AIO liquid cooler need later?

The sealed 240mm AIO is maintenance-free for its service life; if pump noise or rising CPU temperatures appear after several years, the entire cooler unit would be replaced rather than refilled.

What limit appears first on the RTX 5090 32GB during sustained heavy workloads?

The GPU will reach its power-temperature limit first, causing the boost clocks to settle at a stable level once the 1200W PSU and case airflow balance the 32GB card's heat output.

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