The ideal foundation for your custom PC
A modern PC does not always need to be bought completely new. With an upgrade PC from CSL Computer, you can modernize the key core components of your system in a targeted way while continuing to use working hardware such as your graphics card, SSDs, or hard drives. This saves money, reduces unnecessary e-waste, and still delivers a significant performance boost for gaming, streaming, office work, or creative applications.
369.00
249.90
199.90
299.90
229.90
309.00
299.90
379.00
369.00
399.00
429.00
419.00
429.00
509.00
519.00
559.00
529.00
529.00
539.00
539.00
599.00
619.00
649.00
709.00
769.00
719.00
719.00
729.00
749.00
799.00
769.00
829.00
799.00
829.00
799.00
799.00
999.00
829.00
969.00
979.00
999.00
1,049.00
1,069.00
1,079.00
1,099.00
1,149.00
1,229.00
1,249.00
1,329.00
1,249.00
1,329.00
1,449.00
1,499.00
1,699.00
2,249.00
Our upgrade PCs consist of a professionally pre-assembled hardware foundation including case, power supply, motherboard, and processor. You benefit from a perfectly matched platform based on the latest AMD Ryzen™ or Intel® technologies and can easily keep using your existing components. That makes upgrade PCs the ideal solution for budget-conscious gamers, tech enthusiasts, and ambitious users.
Using the integrated configuration menu, you can flexibly adapt numerous components to your personal requirements. This creates a powerful system that fits your intended use perfectly, without the effort of building a PC from scratch.
Many older systems still include high-performance individual components that can continue to be used without any issues. High-quality graphics cards or fast SSDs do not automatically lose their practical value after a few years. In many cases, outdated processors, motherboards, or weak power supplies are the real bottlenecks.
That is exactly where our upgrade PCs come in. You get a modern technical base with a current CPU platform and can integrate existing hardware intelligently. This significantly increases overall system performance while saving money compared to buying a completely new PC.
In gaming especially, you benefit from higher FPS, shorter loading times, and better multitasking performance. Our upgrade PCs also provide the ideal foundation for streaming, video editing, image editing, and professional applications.
A key advantage of our upgrade PCs is the professional pre-assembly. All core components are installed by experts and carefully wired. Before shipping, each system undergoes a comprehensive quality inspection including stability, stress, and compatibility tests.
This ensures that the motherboard, processor, memory, and power supply work together perfectly. You receive a technically verified system with high operating reliability and save yourself time-consuming assembly work or troubleshooting.
Our upgrade PCs are designed for long-term expandability. Modern motherboards with current chipsets support fast NVMe SSDs, powerful graphics cards, DDR4 or DDR5 memory, and modern interfaces such as USB-C or PCIe 4.0 and PCIe 5.0.
As a result, your system remains flexible for future hardware upgrades. You can expand or replace components later with ease and adapt your PC to new requirements at any time.
An upgrade PC is a partially assembled PC system with core components such as the case, power supply, motherboard, and processor already installed. Your own hardware such as graphics cards, SSDs, or hard drives can still be used.
Yes. Our upgrade PCs are specifically designed to continue using existing graphics cards. In most cases, current PCIe graphics cards can be integrated without any problems.
Yes. Every upgrade PC is extensively checked before shipping. This includes functionality tests, compatibility checks, and stress and stability tests of all installed components.
Upgrade PCs are ideal for gamers, tech enthusiasts, content creators, and budget-conscious users who want to reuse existing hardware while still benefiting from modern PC performance.
Yes. The integrated configuration menu lets you customize numerous components individually, including the processor, memory, cooling solutions, or additional drives.
You save money, use existing hardware efficiently, and reduce e-waste. At the same time, you get a modern platform with professional pre-assembly and verified compatibility.
Yes. In combination with a suitable graphics card, our upgrade PCs are excellent for modern games in Full HD, WQHD, or even 4K resolution.
Installing your existing hardware is usually straightforward. Thanks to the pre-assembled base and clean cable management, graphics cards, SSDs, or hard drives can be integrated quickly.