Best Heatsinks for LGA 1155: 2 Spec-Based Picks
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Finding the best heatsinks for LGA 1155 requires focusing on physical dimensions and socket support. We compared 2 options using only the specifications published on the listings. The Supermicro 1U Passive Server Heatsink leads because it fits 1U chassis with a 3.6-inch length. This compact design ensures compatibility with small form factor servers. You need to match cooler size to your case height. This guide helps you decide which model fits your hardware.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Supermicro 1U Passive Server Heatsink Best overall | 1U server builds with LGA 1155 | Check price of Supermicro 1U Passive Server Heatsink on Amazon |
| 2 | Dynatron 1U Active Copper Heatsink Best budget | 1U server builds with LGA 1155 or LGA 1156 | Check price of Dynatron 1U Active Copper Heatsink on Amazon |
The best fit for you
- You need the smallest profile for a 1U server Supermicro 1U Passive Server Heatsink It measures 1U height and fits compact chassis with passive cooling.
- You want active cooling for LGA 1155 in 1U Dynatron 1U Active Copper Heatsink It includes a fan and uses copper for active heat dissipation.
- You require a lightweight heatsink under 10 ounces Supermicro 1U Passive Server Heatsink It weighs only 8 ounces, making it lighter than the copper option.
Our 2 picks
Supermicro 1U Passive Server Heatsink
Best for: 1U server builds with LGA 1155
- Socket Compatibility
- LGA 1150, LGA 1155 (what this guide is about)
- Server Height
- 1U
- Cooling Method
- Passive
- Compatible Device
- X8, X9 1U UP Servers
- Dimensions
- 3.6 x 1.1 x 3.6 inches
- Mounting Type
- Screw Spring, Mounting Bracket
View on Amazon: Supermicro 1U Passive Server Heatsink Affiliate link
This Supermicro heatsink is designed for 1U server chassis. It supports LGA 1155, LGA 1150, and LGA 1156 sockets. The unit measures 3.6 by 3.6 by 1.1 inches and weighs 8 ounces. It uses a passive cooling method, meaning it relies on case airflow. You need a compatible mounting bracket for installation. This part fits Intel Xeon and Core i3 processors in small form factor builds.
Pros
- Supports LGA 1155, LGA 1150, and LGA 1156 sockets
- Compact 1U height fits small server chassis
- Includes screw spring and mounting bracket
- Lightweight at 8 ounces
Cons
- Passive cooling requires strong case airflow
- Only 1.1 inches wide for heat dissipation
- Not suitable for standard desktop towers
Good fit if
- You are building a 1U server system
- You need LGA 1155 compatibility in a small form factor
- Your case provides adequate front-to-back airflow
Skip if
- You are building a standard desktop PC
- You need active fan cooling
- You require a taller heatsink for better thermal headroom
Verdict: Supermicro 1U Passive Heatsink is a specialized component for 1U server builds. It fits users who need LGA 1155 support in a compact chassis with strong airflow.
Dynatron 1U Active Copper Heatsink
Best for: 1U server builds with LGA 1155 or LGA 1156
- Socket Compatibility
- LGA 1155, LGA 1156 (what this guide is about)
- Material
- Copper
- Server Height
- 1U
- Cooling Method
- Active
- Dimensions
- 5 x 5 x 2.5 inches
- Features
- Fan
View on Amazon: Dynatron 1U Active Copper Heatsink Affiliate link
The Dynatron K199 is a 1U active heatsink built for LGA 1155 and LGA 1156 sockets. It uses a copper base and includes a fan for active cooling. The unit measures 5 by 5 by 2.5 inches and weighs 15.2 ounces. This design fits standard server chassis. You should use this if you need a compact, low-profile cooler for Intel Xeon or Core processors in a 1U enclosure.
Pros
- Copper construction for efficient heat transfer
- Compatible with LGA 1155 and LGA 1156 sockets
- Includes a fan for active cooling
- Fits 1U server chassis form factor
Cons
- Limited to 1U height, restricting use in standard cases
- Only supports LGA 1155 and 1156 sockets
- No mention of PWM fan control or speed settings
Good fit if
- You are building a 1U server chassis
- You need a cooler for LGA 1155 or LGA 1156
- You require a compact copper heatsink with a fan
Skip if
- You need support for modern sockets like LGA 1700
- You require a low-profile cooler under 1U height
- You are building a standard desktop PC case
Verdict: Dynatron K199 1U Copper Heatsink is a specialized cooler for 1U server builds using LGA 1155 or LGA 1156 processors. It provides active cooling in a small footprint for specific enterprise or legacy hardware needs.
Specifications side by side
| Spec | Supermicro 1U Passive Server Heatsink | Dynatron 1U Active Copper Heatsink |
|---|---|---|
| Socket Compatibility | LGA1150, LGA1155, LGA1156 | LGA1155, LGA1156 |
| Material | not stated | Copper |
| Server Height | 1U | 1U |
| Cooling Method | Passive | Active |
| Compatible Device | X8, X9 1U UP Servers | not stated |
| Dimensions | 3.6 x 1.1 x 3.6 inches | 5 x 5 x 2.5 inches |
| Mounting Type | Screw Spring, Mounting Bracket | not stated |
| Features | not stated | Fan |
| Weight | 8 ounces | 15.2 ounces |
| Model | SNK-P0046P | K199 |
Key specs for LGA 1155 heatsinks
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Verify socket support first
You must confirm the cooler lists LGA 1155 in its compatibility section. Some models support LGA 1150 but not LGA 1155. The Supermicro unit explicitly lists both sockets, ensuring a secure fit for your specific processor. Always check the attribute list before purchasing. Mismatched sockets lead to installation failures. Do not assume backward compatibility. Verify the exact socket type on the product page to avoid returns or hardware damage.
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Check chassis height limits
Your case must accommodate the heatsink height. The Supermicro model is designed for 1U chassis, measuring just 3.6 inches in length and width. The Dynatron unit is wider at 5 inches. Measure your available space carefully. A 1U server requires a low profile. A standard tower allows more flexibility. Exceeding height limits prevents the side panel from closing. Ensure the physical dimensions match your case specifications exactly.
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Choose passive or active
Decide between passive and active cooling methods. The Supermicro heatsink is passive, relying on case airflow. It suits environments with strong fans. The Dynatron model includes a fan for active cooling. This option dissipates heat more effectively without case fan dependency. Active cooling is better for higher thermal loads. Passive designs are quieter and simpler. Select based on your case airflow and noise requirements.
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Assess weight and material
Material affects heat transfer and weight. The Dynatron heatsink uses copper, which conducts heat well. It weighs 15.2 ounces. The Supermicro unit weighs 8 ounces. Heavier copper models may require stronger mounting. Lighter models are easier to handle. Consider the thermal mass needed for your CPU. Copper provides superior conductivity compared to aluminum. Check the material specification to ensure adequate heat dissipation for your processor's TDP.
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Match server form factor
Select a cooler that matches your system type. The Supermicro cooler is ideal for 1U server builds. It fits compact chassis with strict height restrictions. The Dynatron unit also targets 1U builds but offers active cooling. If you are building a standard desktop, these may be too small. Verify your system type first. Server builds need specific mounting holes. Desktop builds require different brackets. Ensure the cooler matches your chassis architecture.
Frequently asked questions
Does the Supermicro 1U Passive Server Heatsink include a fan?
No, this model uses passive cooling. It relies on case airflow rather than an integrated fan to dissipate heat. You must ensure your server chassis provides sufficient air movement through the vents. This design keeps the unit quiet but depends entirely on your system's airflow setup.
What are the exact dimensions of the Supermicro heatsink?
The Supermicro unit measures 1.1 inches in width, 3.6 inches in height, and 3.6 inches in length. It weighs 8 ounces. These compact dimensions allow it to fit into tight 1U server chassis. The small footprint makes it ideal for builds with strict space constraints.
Is the Dynatron heatsink made of copper or aluminum?
The Dynatron K199 is made of copper. This material choice helps it absorb and transfer heat from the CPU more efficiently than aluminum. It also includes a fan for active cooling. This combination provides better thermal performance for enterprise hardware in small form factors.
Can the Dynatron K199 fit in a standard desktop tower?
This heatsink is designed for 1U server builds. It measures 5 inches in width and 5 inches in length, with a height of 2.5 inches. While it might physically fit in some larger towers, its primary design targets compact server chassis. Check your case clearance carefully before purchasing.
Does the Supermicro cooler support LGA 1150 processors?
Yes, the Supermicro 1U Passive Server Heatsink supports both LGA 1150 and LGA 1155 sockets. This dual compatibility gives you flexibility if you upgrade or swap CPUs. Always verify that your specific motherboard matches one of these socket types for a secure fit.
Which heatsink is heavier, the Supermicro or Dynatron?
The Dynatron K199 is heavier, weighing 15.2 ounces. The Supermicro model weighs 8 ounces. The extra weight in the Dynatron comes from its copper construction and integrated fan. Both units are relatively light, but the Dynatron is nearly twice as heavy as the passive Supermicro option.