Custom PC Builder
Configure your ideal gaming setup. All builds are professionally assembled, stress-tested, and dispatched within 5–7 working days.
🖥️ Selected Base Platform Package: Select a CPU (£0.00)
Auto-matched socket architecture. Includes base platform components, assembly & stress testing.
Configured Total:
£0.00
⚠️ Please select options for all required components above before adding to cart.
System Build Manifest
Select a case to preview
Case Preview
Visual representation of selected chassis
Build Your Custom Gaming PC with Real-Time Compatibility Checks
Design your ultimate gaming rig using PC Power Up's interactive Custom PC Configurator. From high-FPS esports builds to ultra-settings 4K gaming powerhouses, select your ideal combination of chassis, CPU, NVIDIA GeForce or AMD Radeon graphics cards, high-speed NVMe storage, and liquid cooling. Our system cross-checks hardware specs and thermal requirements in real time to ensure proper fit and optimal performance before our expert technicians assemble, stress-test, and ship your build.
Our Rigorous Assembly & Validation Process
Step 1
Dynamic Hardware Matching
Configure your case, CPU, GPU, RAM, and storage. Our builder intelligently pairs your CPU with the appropriate cooling solution, ensuring flagship chips always get the heavy-duty cooling they need to prevent overheating.
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Step 2
Precision Build & Cable Routing
Our experienced PC builders hand-assemble your system, optimizing internal airflow and routing cables neatly for a clean layout and maximum airflow.
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Step 3
Stress Testing & Thermal Check
Every custom desktop undergoes multi-hour CPU/GPU stress testing (FurMark and Unigine Heaven) to verify stable clock speeds and optimal operating temperatures.
Liquid Cooling & Chassis Compatibility Rules
| AIO Liquid Cooler | Cooling Profile & Aesthetic | Hardware & Thermal Requirement |
|---|---|---|
| Lian Li Galahad II Lite | 240mm or 360mm / ARGB Lighting |
Dynamic Sizing: Available in both 240mm and 360mm variants. The 240mm fits standard mid-towers for Core i5/i7 and Ryzen 5/7, while the 360mm model is fully qualified for high-heat flagship CPUs like the Intel Core i9-14900K (selected based on your case choice). |
| ARCTIC Liquid Freezer III 360 A-RGB | 360mm / High-Performance ARGB / Thick 38mm Core |
High-Heat Flagship Ready: Mandatory cooling tier for top-end CPUs like the Intel Core i9-13900K / i9-14900K. Requires a chassis that supports 360mm radiators. |
| TR Wonder Vision 360 | 360mm / Customizable LCD Display / ARGB |
360mm Chassis Restricted: Flagship display cooler. Exclusively selectable when paired with a 360mm-compatible chassis. |
Custom PC Hardware Tier Guide
| 1080p Esports & High-FPS Gaming Tier | |
|---|---|
| Recommended Hardware | Intel Core i5 / AMD Ryzen 5 + NVIDIA RTX 3060 / 4060 or AMD RX 6600/7600 |
| Cooling & Power | Standard High-Performance Air Cooler (or optional 240mm AIO for aesthetics) / 550W–650W Power Supply |
| Best For | Smooth 1080p ultra gaming in competitive titles like Fortnite, Valorant, Apex Legends, and CS2. Air cooling easily handles temps at this level, but you can upgrade to liquid cooling if you prefer the look. |
| 1440p Ultra & Entry 4K Creator Tier | |
|---|---|
| Recommended Hardware | Intel Core i7 / AMD Ryzen 7 + NVIDIA RTX 4070 / 4070 Super or AMD RX 7800 XT |
| Cooling & Power | 240mm / 360mm AIO Cooler / 750W Power Supply |
| Best For | High-refresh 1440p AAA gaming, DLSS ray tracing, video editing, and live streaming. |
| Flagship 4K Ultra & AI Workstation Tier | |
|---|---|
| Recommended Hardware | Intel Core i9 (13900K/14900K) / AMD Ryzen 9 + NVIDIA RTX 4080 Super / RTX 4090 / RTX 50 Series |
| Cooling & Power | High-Performance 360mm AIO (Lian Li Galahad II 360 / ARCTIC Liquid Freezer III / TR Wonder Vision 360) / 850W–1200W PSU |
| Best For | Uncompromising 4K gaming, 3D rendering (Blender/Unreal Engine), neural network training, and extreme multitasking. |
Frequently Asked Questions
Q
Can I request custom components that aren't listed in the PC Builder tool?
Yes! We can build your system with virtually any parts or chassis you want, as long as they are compatible. If you have a specific case, graphics card, or specialty part in mind, simply get in touch through our contact form and our team will put together a bespoke quote for you.
Q
Why does the builder require a 360mm AIO for Intel Core i9 CPUs?
Flagship processors like the Intel Core i9-13900K and i9-14900K draw substantial wattage under heavy gaming and multi-threaded workloads. A standard air cooler or 240mm AIO can lead to thermal throttling under full load. Our configurator automatically matches these CPUs with a 360mm Liquid Cooler (such as the Lian Li Galahad II 360, ARCTIC Liquid Freezer III 360, or TR Wonder Vision 360) to guarantee peak boost clock performance.
Q
Can I select the TR Wonder Vision 360 LCD cooler with any computer case?
No, the TR Wonder Vision 360 features a 360mm radiator array that physical size constraints prevent from fitting into compact or 240mm-only cases. Our live builder automatically restricts selection of 360mm coolers unless a 360mm-compatible chassis is selected in your configuration.
Q
How long does it take for my custom PC to be built and delivered?
Once your custom PC order is placed, our technicians assemble the hardware, perform custom cable routing, run extended stress tests, and install all fresh system drivers. Assembly and thorough testing typically take 5–7 business days before dispatch via fully insured courier.
Q
Do custom PC builds include a warranty?
Yes! Every custom gaming PC built by PC Power Up comes with a 1-year warranty covering both parts and labour for complete peace of mind.
Q
Can I upgrade my custom PC components in the future?
Absolute reliability and upgradeability are at the core of our builds. We build every custom system using standard ATX industry specifications with zero proprietary components. This guarantees you can easily upgrade your GPU, add extra NVMe storage, or expand RAM in the future.