Noctua NH-L12S CPU Cooler - Brown

This Noctua NH-L12S is a premium low profile CPU cooler, designed for quiet operation. It comes wi...

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OnBuy.comNoctua Nh-L12s Premium Low Profile Cpu Cooler With Quiet 120Mm Pwm Fan (Brown) Brown 841501100055
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Product Information

Full details

The Noctua NH-L12S is a premium, low-profile CPU cooler designed for quiet operation in compact PC builds. It offers excellent compatibility with various RAM heights and small form factor cases, making it ideal for HTPCs and builds where space is a constraint. Its primary benefit is effective cooling with minimal noise, though its low profile may limit extreme overclocking potential compared to larger coolers.

All features

ColourBrown
Model Part NumberNH-L12S
BrandNoctua

Extended Product Information

FAQs

What is the maximum RAM height supported?

With the fan mounted on top of the heatsink, the NH-L12S supports RAM modules up to 48mm in height. With the fan mounted underneath, the clearance is limited to approximately 35mm.

Can I use a different 120mm fan with this cooler?

Yes, the NH-L12S includes fan clips that support standard 120x25mm fans. Using a thicker fan will increase the total height of the cooler.

What is the difference between the NH-L12 and NH-L12S?

The NH-L12S is an updated version that includes the slimmer and more efficient NF-A12x15 120mm fan, offering better performance and flexibility compared to the original NH-L12 which used a 92mm fan.

Does it come with thermal paste?

Yes, the NH-L12S includes a tube of Noctua's NT-H1 thermal compound, a highly-regarded, professional-grade paste.

What CPU sockets are supported out of the box?

Out of the box, it supports Intel LGA1851, LGA1700, LGA1200, LGA1150, LGA1151, LGA1155, LGA1156, and AMD AM4 and AM5 sockets.

Is this cooler suitable for a 100W+ TDP CPU?

While capable, for CPUs with TDPs significantly above 100W, especially if overclocking, a larger cooler might be recommended for optimal temperatures and noise levels. However, it performs well for its size on many mainstream processors.

What is the warranty period?

Noctua offers a 6-year manufacturer's warranty for the NH-L12S.

Troubleshooting

CPU temperature is too high.

Ensure the cooler is mounted correctly with even pressure. Verify that the SecuFirm2™ mounting system is securely fastened. Check that the fan is spinning and oriented correctly for airflow. Reapply thermal paste if initial application was incorrect. Confirm the fan is not obstructed.

Fan is making unusual noise.

Check if the fan is rubbing against any cables or the heatsink. Ensure the fan is properly seated on its mounting clips. If noise persists, consider using the Low-Noise Adaptor (LNA) or replacing the fan.

Cooler does not fit in the case.

Double-check the total height of the cooler with your chosen fan configuration (70mm with fan below, ~95mm with standard 25mm fan on top). Ensure your PC case has sufficient clearance for the cooler's dimensions and the motherboard's RAM slots.

Mounting hardware is missing.

Review the product packaging contents against the manual's parts list. Contact Noctua support for replacement parts if anything is missing.

Pros and Cons

Pros

  • Excellent low-profile design for SFF and HTPC builds.
  • Quiet operation thanks to the NF-A12x15 PWM fan.
  • Flexible fan mounting for RAM compatibility or minimal height.
  • Easy and secure installation with the SecuFirm2™ mounting system.
  • Good thermal performance for its size.
  • Comes with high-quality thermal paste (NT-H1).

Cons

  • May not provide sufficient cooling for extreme overclocking of high-TDP CPUs.
  • The brown and beige color scheme might not fit all aesthetic preferences.
  • Performance can be slightly reduced in the lowest profile configuration compared to taller coolers.
  • Requires careful fan orientation for optimal airflow in very confined spaces.

Setup, Compatibility & Care

Setup: The NH-L12S utilizes Noctua's SecuFirm2™ mounting system, designed for straightforward installation. Ensure you select the correct mounting brackets for your CPU socket (Intel LGA1851, LGA1700, LGA1200, LGA115x or AMD AM4/AM5). Apply the included NT-H1 thermal compound to the CPU, attach the fan (either above or below the heatsink, depending on clearance needs), and secure the cooler. Refer to the detailed manual for specific socket instructions, especially for the AM5 offset mounting.

Compatibility: This cooler supports a wide range of modern Intel and AMD sockets. When installing with the fan underneath, the total height is 70mm, accommodating RAM modules up to 35mm. With the fan on top, the height increases, allowing for RAM modules up to 48mm tall. For RAM or VRM heatsinks taller than 48mm, this cooler may not be suitable in its top-fan configuration. Always check case and motherboard clearance before purchasing.

Care: To maintain optimal performance, regularly clean the heatsink fins and fan blades. Use compressed air to blow dust away from the heatsink. The fan can be wiped gently with a dry or slightly damp cloth. Avoid using harsh chemicals or excessive moisture. The fan and thermal paste can be replaced if necessary after several years of use.

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