Build 135 – Phlegethon’s Keep: 4K/120hz Gaming Computer

Phlegethon’s Keep is a 4K/120hz gaming computer.


Phlegethon’s Keep is a 4K/120hz gaming computer.

General System Design

This build is designed around a 16-core i9-12900K processor and an RTX 3090 24GB video card.

Software Workload/Customer Need

This customer was looking for a new powerful gaming computer. This build was also designed for video editing, music production, terrain mapping, and GPS programming.

This customer saw our work on Sudden Storm and wanted a similar design.

System Spec

Processor (CPU): Intel i9-12900K

CPU Cooler: Corsair iCUE H150i ELITE CAPELLIX Black

Motherboard: Gigabyte Z690 AORUS ELITE AX

Memory: Kingston Fury Beast RGB 4x16GB DDR4-3200

Storage (SSD): Kingston Fury Renegade 500GB

Storage (SSD): Kingston Fury Renegade 2TB


Power Supply (PSU): EVGA P2 1000W

Case: Lian Li PC-O11 Dynamic

Fans: 9x Corsair ML120 Pro

Accessories: Corsair Commander Pro

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Design Rationale

  • The i9-12900K gave the customer a great amount of single-core performance for gaming and editing, and multicore performance for heavily-threaded tasks.
  • To ensure the CPU runs at full speed, liquid cooling with a 360mm AIO is recommended. The customer preferred a model with RGB.
  • The customer wanted a stable motherboard with a good amount of desktop functionality.
  • The customer wanted at least 64GB of RAM, wanted to save money with last-gen tech, and wanted 4 DIMMs with RGB.
  • The customer upgraded the main drive from 1TB to 2TB.
  • We recommended the RTX 3090 for ideal gaming and editing performance.
  • The overall design of the build meant that a 1000W power supply was recommended.
  • We used our high-visibility mid-tower case to fit the build.
  • We used our high-end RGB fans to ensure proper airflow and static pressure.

Customer Review

Build Gallery

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