Building a silent PC doesn’t have to mean settling for a low-performance PC or paying a ton of extra money. With the right selection of hardware, you can enjoy both performance and quiet operation without paying for expensive, bespoke solutions.
So, here’s the hardware you need to build a silent PC.
1 Big PC Case With Good Airflow
The type of PC case you choose can make managing thermals easier or harder. A big PC case with good airflow is what you want when looking to build a quiet PC without sacrificing performance. Larger cases are generally less restrictive regarding airflow and the components you want to use for your PC. In contrast, smaller cases with limited ventilation force you to bundle components in tight space, cut airflow, and limit the size and amount of fans you can install on your PC, pushing temperatures higher and forcing your fan speeds to run at maximum.
For a quiet PC, go for a full-tower or a mid-tower case and avoid small cases such as a mini-tower and any Mini-ITX cases. Additionally, look for cases with good airflow. These often feature mesh fronts, tops, and bottoms, encouraging air to move freely. Avoid cases that are sealed off or rely heavily on small, high-RPM fans, as these tend to be noisier. Some cases also come with built-in sound-dampening foam on the inside panels, which can significantly reduce the noise escaping from inside the case.
Two PC cases I recommend are the Fractal Design Define 7 XL, known for its high-quality build and integrated sound-dampening features, and the Corsair 4000D Airflow for a cheaper mid-tower alternative with no airflow or noise control compromise.
2 Low RPM Large Diameter Fans
Fans are one of the primary sources of noise on a PC. The faster they spin, the louder they get. Opting for low RPM large-diameter fans can make a big difference. Larger fans, such as a 140mm or 200mm case fan, can move more air at lower speeds, reducing noise without sacrificing cooling performance.
Running at lower speeds means these fans produce less noise, especially when paired with high-quality bearings like fluid dynamic or magnetic levitation bearings. Additionally, many fans come with built-in RPM control, allowing you to fine-tune the balance between cooling and noise.
The Noctua NF-A14 and be quiet! Silent Wings 4 Pro are popular options for silent PC fans with long-lasting durability.
3 Silent CPU Air Cooler
While liquid cooling is popular for overclocking and compact high-performance builds, it often comes with pump noise. This pump sound is pretty distinct from regular fan noise, and even though it may be similar in decibel level, the difference in sound quality can make it more noticeable. Outward-facing radiators make liquid cooling an effective solution for compact builds, but for full towers with good airflow and large fans, having that extra pump sound isn’t worth the extra layer of noise.
To achieve silent cooling, look for a CPU air cooler with a large heatsink. Larger heatsinks with more surface area can dissipate heat more effectively, allowing the fan to run at lower speeds. The quality of the fan itself is also important. Again, look for larger fans that can run at lower RPMs. Additionally, a solid vibration-free mounting system can also minimize noise from the cooler.
Two of the top recommended silent CPU coolers are the Noctua NH-D15, known for its massive heatsink and ultra-quiet fans, and the be quiet! Dark Rock Pro 5.
4 Semi-Fanless PSU
The power supply unit (PSU) is often overlooked in silent PC builds but can significantly contribute to noise levels. A semi-fanless PSU operates without the fan spinning under low to medium loads, only kicking in when under heavy loads.
The key benefit of a semi-fanless PSU is its ability to reduce noise during idle and low loads. Your PC remains virtually silent during regular tasks since the fan doesn’t spin until the PSU is under significant load. Additionally, most semi-fanless PSUs are rated Gold or Platinum for efficiency, generating less heat, requiring less cooling, and producing less fan noise.
The Cooler Master MWE and Thermaltake GF1 are both highly efficient and reliable options with a semi-fanless mode.
5 Intel Iris Xe or AMD Radeon CPUs for Non-Gaming Builds
If you’re building a PC that isn’t intended for AAA gaming, you can opt for a CPU with integrated graphics. These CPUs eliminate the need for a dedicated graphics card, reducing power consumption and noise.
Integrated graphics offer several advantages, including lower power consumption and manageable thermals that keep fans at low RPM. Despite the lack of a dedicated GPU, modern iGPUs like Intel Iris Xe and AMD Radeon Vega can still play many eSport games, such as League of Legends, Fortnite, Dota 2, Apex Legend, and Valorant, on 1080p at mid to high FPS.
Although AMD’s Ryzen 8000 series is already available, there are various reasons to wait for the X3D version. But if you need a high-end AMD CPU right now, we’d recommend the AMD Ryzen 7 7800X3D. An AM4 budget alternative would be the AMD Ryzen 5 5600G.
There are also reasons to avoid Intel’s14th-Gen processors, launched in 2024. So, either wait for 2025’s 15th-Gen CPUs or get a 13th-Gen CPU, such as the Intel Core i7-13700K, which still features Intel’s Iris Xe graphics.
6 GPU With Quiet Mode
Graphics cards are often the loudest component on a PC, especially during gaming or intensive tasks. However, many modern GPUs now come with a quiet mode or semi-passive operation, where the fans remain off until the GPU reaches a certain temperature threshold.
A quiet GPU typically features semi-passive cooling, allowing the fans to remain off during low to moderate GPU usage. Additionally, larger heatsinks and multiple fans can provide adequate cooling at lower RPMs. Some GPUs also allow you to create custom fan curves through software, enabling you to prioritize silence over performance or vice versa.
Consider looking for a GPU within the ASUS ROG Strix lineup, such as the Strix GeForce RTX™ 4060 OC or the MSI GeForce RTX 4060 Ventus 2X Black.
7 Motherboard With On-Board Fan Control
To truly optimize your PC for silent operation, you need a motherboard that offers advanced fan control. Motherboards with onboard fan control allow you to adjust fan speeds based on temperature sensors, creating a balanced cooling system that minimizes noise.
When selecting a motherboard for a silent build, ensure it has multiple fan headers, ideally 4-pin PWM headers, which allow for more precise control of fan speeds. The motherboard’s BIOS or UEFI should offer detailed fan control settings, including custom fan curves and temperature thresholds. Additionally, some motherboards come with software that provides easier control over fan settings from within the operating system.
Look at something like the MSI X670E GAMING PLUS Wi-Fi for the latest AM5 Ryzen CPUs or the MSI PRO B760-P Wi-Fi for LGA 1700 Intel CPUs.
8 Sound Dampening Kits (Anti Vibration Pads/Rings/Mounts, Noise-Dampening Foam)
Even with all the right components, vibrations and residual noise can still escape your PC case. Sound-dampening kits are the final touch to ensure your PC runs as silently as possible. These kits typically include anti-vibration pads, rings, mounts, and noise-dampening foam.
Soundproofing/sound-dampening kits help by reducing vibration and absorbing noise. Anti-vibration pads and rings can be placed under your PSU, HDDs, and fans to reduce the amount of noise caused by vibrations. Noise-dampening foam can be applied to the inside of your case to absorb sound and prevent it from escaping. These materials can be placed wherever noise is a problem, providing a tailored solution to your specific build.
Most of my recommendations include anti-vibration pads, rings, mounts, and foams. But if the components you bought don’t have such bits, you can easily make your own using regular anti-vibration materials you can find in any hardware store.
By carefully selecting your components with intention, you can build a quiet PC without affecting PC performance. Of course, if you have more money to spare, you can even opt for specialized solutions such as liquid cooling for your GPU, fanless CPU coolers, and even passively cooled fanless PC cases. Nevertheless, the components listed in this article should be quite enough to satisfy most people.
