Selling a current-generation AI/rendering workstation built around an Intel Core Ultra 9 285K and a modded RTX 4090 48GB. This machine was assembled for local LLM inference, 3D rendering, video editing, and heavy multitasking.

The system is housed in an ASUS ProArt PA602 E-ATX case with an ASUS ProArt LC 420 420mm AIO, upgraded with three Noctua NF-A14 iPPC-3000 PWM fans for higher static pressure and airflow than stock. Power is supplied by a Thermaltake Toughpower GF3 1200W 80 Plus Gold fully modular PSU.

Core specs: Intel Core Ultra 9 285K, ASUS ROG Maximus Z890 Hero (Intel Z890, LGA 1851, WiFi 7, Thunderbolt 4, PCIe 5.0), G.SKILL Trident Z5 RGB 128GB (2 x 64GB) DDR5-6000, modded NVIDIA RTX 4090 48GB GDDR6X blower-style GPU from GPU Labs, and 8TB of Crucial T710 PCIe 5.0 NVMe storage across two 4TB M.2 2280 SSDs.

Condition

Functional: Used, fully assembled, and tested. All components are confirmed working with no known functional issues. The GPU was validated with GPU Burn, FurMark, PyTorch, and LLM/diffusion workloads.

Cosmetic: Good used condition with minor wear consistent with a built workstation. Please review all listing photos for exact physical condition.

Included

• Complete assembled workstation
• Original accessories and documentation, where available
• Power cable

Power / Compatibility

Requires a standard 120V outlet and adequate clearance for a full-tower E-ATX workstation. The GPU draws up to 450W; total system power under full load can approach the PSU capacity. Buyer must use the included 12V-2x6/12VHPWR cable or an adapter specifically approved by their PSU manufacturer for their exact model. Do not mix modular PSU cables between brands or models.

Shipping

This is a large, heavy, fully assembled workstation. Shipping will be via freight or insured ground carrier with the GPU optionally removed and packed separately for transit.

Buyer Notes

• Sold exactly as pictured and described.
• Please confirm your use case, power, and space requirements before purchasing.
• For fraud prevention and shipment verification, all item serial numbers are recorded and logged prior to shipment.
• Item condition and packaging are photographed/recorded before shipment to help prevent shipping or return disputes.
• Any disassembly, modification, or physical alteration after delivery is the buyer's responsibility.
• Manufacturer warranty coverage for individual components is subject to each manufacturer's terms.

References

• Intel Core Ultra 9 285K specs
• ASUS ROG Maximus Z890 Hero product page
• ASUS ProArt PA602 product page
• ASUS ProArt LC 420 product page
• Noctua NF-A14 iPPC-3000 PWM fan
• Thermaltake Toughpower GF3 1200W PSU
• G.SKILL Trident Z5 RGB 128GB DDR5-6000
• Crucial T710 4TB SSD product page
• GPU Labs RTX 4090 48GB info
• Lengthy GPU validation video — HWiNFO64, GPU-Z, FurMark, nvidia-smi
• Fan noise under load

Tags

Workstation, gaming PC, desktop computer, AI PC, machine learning, LLM inference, 3D rendering, video editing, content creation, NVIDIA, RTX 4090, 48GB modded GPU, Intel Core Ultra 9, 285K, ASUS ProArt, PA602, ROG Maximus Z890 Hero, DDR5, 128GB RAM, G.SKILL Trident Z5, Crucial T710, Thermaltake