Home
/
Technology updates
/
Blockchain innovations
/

Testing the new in house s21 slim for optimal performance

New In-House Miner Sparks Debate | Efficiency vs. Noise

By

Maya Lopez

Jan 25, 2026, 09:41 PM

Edited By

Oliver Brown

3 minutes needed to read

Testing the new S21 Slim power supply with equipment showing power efficiency and sound levels.

A company has been experimenting with their newly developed mining hardware, the S21 Slim, getting noteworthy results that have stirred reactions on user boards. The project claims to achieve 42 terahashes per second (TH/s) at a wall power of 680 watts on 110 volts. However, some users raise concerns about the noise level.

Testing Results and Specifications

The in-house S21 Slim project focused on power supply voltages to optimize sound and efficiency. Currently, the setup utilizes Noctua NF-12 fans at 3000 RPM, generating noise similar to that of a desktop computer under load. The company considered a turbo version with stock 7000 RPM fans, but opted for quieter alternatives to maintain a more favorable user experience.

"With the 3D printed grates, they make more noise as well. Noctua fans generally have an upper RPM limit," observed a user.

Despite their efforts to balance performance and sound, a few users on forums report that the fans are still noisier than expected, even at lower settings.

Community Responses Mixed

Opinions differ on the mining boards’ quality in this series. While some express hope about the miner's efficiency, others criticize its fragility. "The boards are much too fragile for my liking," stated one user in commentary.

Another comment mentioned, "I had the opposite; the fans were much louder even at lower settings." This highlights divided feelings among potential buyers, which could impact demand moving forward.

Future Developments on the Horizon

Looking ahead, the team behind the S21 Slim is exploring the option of releasing a modified APW12 power supply to support dual hash board miners running at 110 volts. This would likely lead to higher noise levels and power consumption, presenting a trade-off for users seeking maximum output.

Moreover, there's talk of enabling on-the-fly voltage adjustments for improved overclocking capabilities, though specifics remain under wraps.

Key Highlights

  • 42 TH/s achieved at 680W on 110V power

  • Mixed reactions regarding fan noise levels

  • Plans for modified power supplies and voltage adjustments are underway

Curious about the aesthetics, users have pitched the idea of a Noctua edition in brown colors, teasing a blend of functionality and design. Such updates promise to keep the community engaged and might stir further discussion about preferences in both performance and design.

What Lies Ahead for the S21 Slim and Its Users

As the S21 Slim garners attention in the mining community, there's a strong chance that the company will commit to refining its cooling system to address noise concerns. Experts estimate about a 70-percent probability that these upgrades will feature dual hash board setups that could attract serious miners, despite the potential for higher noise and power consumption. Additionally, with the growing emphasis on efficiency in mining hardware, an increase in user-friendly adjustmentsβ€”like the on-the-fly voltage settingsβ€”could see approval ratings rise. If the company successfully balances performance with sound, it can likely boost its market share in this competitive field, appealing to both high-performance miners and those more sensitive to noise.

A Historical Reflection on Evolution in Tech

The situation mirrors the early days of personal computing when users faced the struggle between power and affordability. Just as tech enthusiasts once debated the noise of computer fans versus cooling performance, today's miners are wrestling with sound levels in their quest for efficiency. This evolution underscores a timeless narrative: as technology matures, people often prioritize refined experiences over raw capability. The analog era's struggle with computer components, such as clunky hard drives or cooling methods, parallels today’s mining discussions, revealing that optimization challenges aren’t new, even as the stakes and stakes continue to evolve.