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

Adamant Custom

Adamant Custom 24-Core Ultra 9 285K RTX 5090 128GB DDR5 4TB NVMe gaming PC

SKU CH-CDVH-K7TDC

A 24-core Intel Core Ultra 9 285K desktop with 128GB DDR5, 4TB NVMe storage and an RTX 5090 32GB GPU for gaming, rendering and AI workloads

  • CPU TypeIntel Core Ultra 9 (Series 2)
  • CPU NameIntel Core Ultra 9 285K
  • CPU Socket TypeLGA 1851
  • GPU/VGA TypeGeForce RTX 5090
  • Memory Capacity128GB DDR5
  • Memory Slots (Available/Total)4 total
  • 24-core Intel Core Ultra 9 285K reaches 5.70 GHz for heavy multitasking
  • RTX 5090 with 32 GB VRAM drives 4K rendering and AI workloads
  • 128 GB DDR5 memory expandable to 192 GB for large datasets
  • 4 TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s reads
  • 360 mm liquid cooler and 1200 W 80 PLUS Gold PSU sustain peak loads

24-Core Ultra 9 Workstation

This system pairs a 24-core Intel Core Ultra 9 285K processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5090 32GB graphics card. It targets professionals who need high thread counts for rendering, modelling and AI learning workloads alongside strong gaming capability. A 4TB Samsung 990 PRO NVMe drive provides the primary storage. Windows 11 Pro is pre-installed.

Sustained Load Behaviour

A 360mm quiet-edition liquid cooler handles the CPU so clock speeds can remain high during long compiles or training runs. The Thermaltake Toughpower 1200W 80 PLUS Gold power supply delivers stable current to both the processor and the 32GB GPU under continuous demand. The Gigabyte Z890M AORUS motherboard supports Wi-Fi 7 and 2.5Gbps wired networking for uninterrupted data transfer.

Upgrade Context

The configuration replaces an older workstation that lacked 128GB of DDR5 memory, a 4TB PCIe 4.0 NVMe boot drive or a 32GB RTX-class GPU. The jump is worthwhile when current projects exceed 64GB of RAM, saturate a smaller SSD or require the larger frame buffer for 3D assets and large language models.

Highlights

  • 24-core Intel Core Ultra 9 285K reaches 5.70 GHz for heavy multitasking
  • RTX 5090 with 32 GB VRAM drives 4K rendering and AI workloads
  • 128 GB DDR5 memory expandable to 192 GB for large datasets
  • 4 TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s reads
  • 360 mm liquid cooler and 1200 W 80 PLUS Gold PSU sustain peak loads

Specifications

CPU TypeIntel Core Ultra 9 (Series 2)
CPU NameIntel Core Ultra 9 285K
CPU Socket TypeLGA 1851
GPU/VGA TypeGeForce RTX 5090
Memory Capacity128GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD4TB NVMe
HDDNo
Operating SystemWindows 11 Pro
Form FactorMid Tower
Release Year2026
AI FeaturesAI Ready
ColorBlack
Cooling SystemLiquid Cooling
Windows 11Ready
LAN Speed2.5Gbps
WiFi GenerationWi-Fi 7
LAN ChipsetIntegrated
WLAN802.11be Wireless LAN
BluetoothBluetooth 5.4
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
RJ451 port

Questions about this item

How much power does the 1200W 80 PLUS Gold PSU draw when the 24-core Ultra 9 285K and RTX 5090 run all day?

The Thermaltake Toughpower 1200W 80 PLUS Gold unit delivers up to 1200 watts with high-efficiency Japanese capacitors and a 140mm ultra-quiet fan, while the 360mm Quiet Edition AIO keeps the 24-core CPU at 3.7GHz base and 5.70 GHz boost under sustained load.

Which display cables must I already own to connect a monitor to the RTX 5090 32GB?

The RTX 5090 32GB provides standard DisplayPort and HDMI outputs, so you need a compatible DisplayPort or HDMI cable matching your monitor's input.

Can I keep my existing SATA SSDs and add them to the three M.2 slots on the Z890M AORUS board?

The motherboard offers four SATA 6Gb/s ports supporting RAID 0, 1, 5, 10 plus three M.2 connectors, so existing SATA drives connect directly while the 4TB Samsung 990 PRO occupies one M.2 slot.

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