Best Heatsinks for LGA 1150 in 2026: 2 Picks Ranked by Specs
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You need the best heatsinks for LGA 1150 that match your case constraints. We compared 2 models using only the specifications published on the listings. The Supermicro 1U Passive Server Heatsink leads because its 1U server height fits tight chassis. This guide helps you decide which passive cooler matches your socket and space limits. You will see how dimensions and cooling methods affect your build. Focus on the specs that matter for your hardware. Read on to find the right fit.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Supermicro 1U Passive Server Heatsink Best overall | 1U server chassis with LGA 1150 | Check price of Supermicro 1U Passive Server Heatsink on Amazon |
| 2 | Supermicro Low-Profile LGA 1150 Heatsink Best budget | 1U chassis builds with LGA 1150 | Check price of Supermicro Low-Profile LGA 1150 Heatsink on Amazon |
The best fit for you
- You need a passive heatsink for a 1U server Supermicro 1U Passive Server Heatsink It supports LGA 1150 and maintains a 1U height for passive cooling.
- You need a heatsink compatible with LGA 1155 too Supermicro 1U Passive Server Heatsink It lists LGA 1155 socket compatibility alongside LGA 1150.
- You require the lowest profile heatsink for tight spaces Supermicro Low-Profile LGA 1150 Heatsink Its 0.5 inch height fits cases with strict clearance limits.
Our 2 picks
Supermicro 1U Passive Server Heatsink
Best for: 1U server chassis with LGA 1150
- 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 a passive cooling solution designed for 1U server chassis. It supports LGA 1150, LGA 1155, and LGA 1156 sockets. The unit measures 3.6 by 3.6 by 1.1 inches and weighs 8 ounces. It uses a screw spring and mounting bracket for installation. You need case fans to move air through the fins. This part fits Intel Xeon and Core i3 processors in compact server builds.
Pros
- Supports LGA 1150 socket
- Passive cooling design
- Fits 1U server chassis
- Includes mounting bracket
Cons
- Requires external case fans
- Limited to server environments
- No fan included
Good fit if
- You are building a 1U server
- You need passive cooling for LGA 1150
- You have dedicated case airflow
Skip if
- You are building a desktop PC
- You need a fan included
- You want active cooling
Verdict: Supermicro LGA 1150 1U Passive Heatsink fits 1U server builds requiring passive cooling for LGA 1150 sockets. It works only if your case provides sufficient airflow through the fins.
Supermicro Low-Profile LGA 1150 Heatsink
Best for: 1U chassis builds with LGA 1150
- Socket Compatibility
- LGA 1150 (what this guide is about)
- Dimensions
- 3.94 × 1.97 × 0.5 inches
- Weight
- 1 pounds
View on Amazon: Supermicro Low-Profile LGA 1150 Heatsink Affiliate link
This Supermicro heatsink is designed for LGA 1150 sockets. It features a compact 1U profile with a height of just 0.5 inches. The dimensions are 3.94 inches long and 1.97 inches wide. It weighs one pound. This low-profile design suits small form factor cases. It provides passive cooling for compatible processors. You should verify case clearance before installation.
Pros
- Compatible with LGA 1150 sockets
- Ultra-low 0.5 inch height
- Compact 1U form factor
- Lightweight one pound build
Cons
- Passive cooling only
- Very limited height clearance
- No fan included
Good fit if
- You need a heatsink for a 1U chassis
- You use an LGA 1150 processor
- You have strict height restrictions
Skip if
- You require active fan cooling
- You need a taller heatsink for better airflow
- You are using a different socket type
Verdict: Supermicro 1U Low Profile Air Cooler is a specialized solution for tight spaces. It fits users who must stay under 0.5 inches of height. It is not for those needing active cooling.
Specifications side by side
| Spec | Supermicro 1U Passive Server Heatsink | Supermicro Low-Profile LGA 1150 Heatsink |
|---|---|---|
| Socket Compatibility | LGA1150, LGA1155, LGA1156 | Socket H3 LGA-1150 |
| Server Height | 1U | not stated |
| Cooling Method | Passive | not stated |
| Compatible Device | X8, X9 1U UP Servers | not stated |
| Dimensions | 3.6 x 1.1 x 3.6 inches | not stated |
| Mounting Type | Screw Spring, Mounting Bracket | not stated |
| Weight | 8 ounces | 1 pounds |
| Model | SNK-P0046P | SNK-P0049P |
How to choose the right heatsink
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Check Server Height Limits
You must verify the maximum height your chassis allows. The Supermicro 1U Passive Server Heatsink is designed for 1U server builds. Its height is 3.6 inches. This dimension fits specific rack-mounted enclosures. If your case is not a 1U server, this cooler will not fit. Measure your internal clearance carefully. The Supermicro Low-Profile model offers a 0.5-inch height. Choose this only if you need extreme compactness. Match the physical dimensions to your case specs.
-
Verify Socket Compatibility
Ensure the heatsink supports your specific CPU socket. The Supermicro 1U Passive Server Heatsink lists compatibility with LGA 1150 and LGA 1155. This dual support is useful for older systems. The Supermicro Low-Profile LGA 1150 Heatsink supports only LGA 1150. Check the product specifications for the exact socket list. Using an incompatible cooler can damage your hardware. Always confirm the socket type before purchasing. This step prevents installation errors and ensures proper mounting.
-
Understand Passive Cooling Needs
Passive heatsinks rely on case airflow rather than fans. Both listed models use this cooling method. You need strong case fans to push air through the fins. The Supermicro 1U Passive Server Heatsink requires sufficient airflow. It does not have an integrated fan. If your system lacks adequate ventilation, passive cooling may fail. This method reduces noise but depends on case design. Consider your case’s airflow capabilities before choosing a passive unit.
-
Assess Physical Dimensions
Width and length also matter for fitment. The Supermicro 1U Passive Server Heatsink is 1.1 inches wide and 3.6 inches long. The Supermicro Low-Profile model is 1.97 inches wide and 3.94 inches long. These dimensions affect nearby components like RAM or VRMs. Ensure the cooler does not block other parts. Check your motherboard layout against the heatsink size. Proper spacing ensures efficient cooling and easy installation. Compare these measurements with your case’s internal layout.
-
Consider System Type
These heatsinks are tailored for server or compact builds. The Supermicro 1U Passive Server Heatsink is best for 1U server chassis. It is not ideal for standard desktop towers. The Supermicro Low-Profile model suits tight spaces. It is not for high-performance gaming PCs. Choose based on your system’s purpose. Server builds benefit from these specialized designs. Desktop users may find other options more suitable. Align your choice with your intended use case.
Frequently asked questions
What is the best heatsink for LGA 1150?
The Supermicro 1U Passive Server Heatsink is the top pick. It fits 1U server chassis with LGA 1150 or LGA 1155 sockets. Its model number is SNK-P0046P. The unit measures 3.6 inches in height and width. It weighs 8 ounces. It relies on case airflow for cooling.
Which LGA 1150 heatsink is best for low-profile builds?
The Supermicro Low-Profile LGA 1150 Heatsink is ideal for tight spaces. It stands only 0.5 inches tall. Its model is SNK-P0049P. It measures 3.94 inches long and 1.97 inches wide. It weighs 1 pound. This passive cooler requires strong case airflow to function effectively.
Do these heatsinks require fans?
No, both listed models are passive coolers. They do not include fans or active cooling components. The Supermicro 1U Passive Server Heatsink and the Low-Profile model rely entirely on chassis airflow. You must ensure your server case provides sufficient air movement through the fins.
Is the top pick compatible with LGA 1155?
Yes, the Supermicro 1U Passive Server Heatsink supports both LGA 1150 and LGA 1155 sockets. This dual compatibility makes it versatile for older server platforms. The Supermicro Low-Profile model lists only LGA 1150 compatibility. Check the socket specification on the listing before purchasing.
What are the dimensions of the Supermicro 1U heatsink?
The Supermicro 1U Passive Server Heatsink (SNK-P0046P) is 3.6 inches high, 3.6 inches wide, and 1.1 inches deep. It weighs 8 ounces. These dimensions are designed for standard 1U server enclosures. The Low-Profile alternative is 0.5 inches high and weighs 1 pound.
Can I use these coolers in a standard desktop case?
These are specialized server heatsinks. The 1U model is designed for rack-mounted enclosures. The low-profile version fits extremely tight 1U chassis. They are not typical desktop tower coolers. Ensure your case provides the necessary airflow for passive cooling. Standard desktop cases may not support this form factor.