Best Heatsinks Under $150: 7 Spec-Based Picks

Quick picks

The best fit for you

• You need to replace thick thermal pads on electronics K5 PRO 400g Viscous Thermal Putty This 400g thermal putty fills component gaps up to 3mm without conducting electricity.
• You need liquid cooling for a 1U LGA4710 server MITXPC 1U Intel LGA4710 Liquid Cooler It provides 350W heat dissipation and pre-applied Shin-Etsu compound for 1U Intel LGA4710 chassis.
• You need a passive heatsink for 1U LGA4189 servers BVIVDMIWF 1U LGA4189 Passive Heatsink This low-profile passive cooler uses a vapor chamber designed for 1U LGA4189 server duct airflow.
• You need 400W cooling for 2U LGA4677 server builds JUCMJXQEQ 2U LGA4677 5-Heatpipe Server Cooler It handles 400W TDP using five heat pipes and fits 2U LGA4677 sockets with an E1A bracket.

Our 7 picks

1 Best overall

K5 PRO 400g Viscous Thermal Putty

Best for: replacing thermal pads on electronics

Compatible Device

Apple iMac, Asus ROG, Acer Nitro, MSI

Features

Thermal Pad

Dimensions

1.97 × 3.15 × 3.15 inches

Weight

14.1 ounces

View on Amazon: K5 PRO 400g Viscous Thermal Putty

This 400g viscous thermal paste replaces factory thermal pads on memory chips and board components. You get thermal conductivity above 5.3 W/m.K and support for gap sizes up to 3mm, with ideal performance under 1mm. Its operating range spans -90 to 250 degrees Celsius without electrical conductivity. It suits you if you service graphics cards, consoles, Apple iMac hardware, or gaming laptops requiring non-conductive gap filler.

Pros

• Thermal conductivity rating exceeding 5.3 W/m.K
• Electrically non-conductive formulation
• Fills component gaps up to 3mm
• Operating temperature range of -90 to 250 degrees Celsius
• Infinite shelf life with no expiration date

Cons

• Thermal interface putty rather than a physical heatsink
• Best thermal transfer performance limited to gaps up to 1mm

Good fit if

• You need to replace soft thermal pads across gaps between 1mm and 3mm.
• You service hardware like Apple iMacs, gaming laptops, or video cards.
• You require an electrically non-conductive thermal material with wide operating temperatures.

Skip if

• You need a dedicated server heatsink with heat pipes or a fan.
• You prefer pre-cut solid thermal pads over viscous putty.

Verdict: Computersystems K5 PRO Thermal Paste Putty 400g provides high-temperature, non-conductive gap filling for graphics cards, laptops, and game consoles. It replaces traditional thermal pads across component gaps up to 3mm.

2 Best budget

MITXPC 1U Intel LGA4710 Liquid Cooler

Best for: Intel LGA4710 1U server liquid cooling

Socket Compatibility

LGA4710

Server Height

1U

System Type

Server

Dimensions

10 × 2.5 × 11 inches

View on Amazon: MITXPC 1U Intel LGA4710 Liquid Cooler

This all-in-one liquid cooler from MITXPC fits 1U server chassis and larger enclosures. It is built specifically for Intel LGA4710 sockets and dissipates up to 350 watts of heat. It comes with pre-printed Shin-Etsu X23-8079-2 thermal compound applied to the base. The unit measures 10 inches long, 2.5 inches wide, and 11 inches high. You get high-wattage liquid cooling suited for compact rackmount systems.

Pros

• Dissipates up to 350 watts of heat
• Fits 1U server chassis and larger form factors
• Includes pre-printed Shin-Etsu X23-8079-2 thermal compound
• All-in-one closed-loop design

Cons

• Only lists compatibility with Intel LGA4710 sockets
• Requires chassis space for 10 by 11 by 2.5 inch dimensions

Good fit if

• You run an Intel LGA4710 processor in a 1U or larger server.
• You need heat dissipation for components generating up to 350 watts.

Skip if

• You use a CPU socket other than LGA4710.
• You prefer standard passive or active air heatsinks over liquid cooling.

Verdict: MITXPC 1U LGA4710 Liquid Cooler delivers 350-watt heat dissipation for Intel LGA4710 server processors in 1U and larger chassis. Pre-applied Shin-Etsu compound allows for direct installation without sourcing separate thermal paste.

3 Also great

CTDOFUM 2U LGA4677 5-Heatpipe Cooler

Best for: 2U LGA4677 high-wattage server builds

Socket Compatibility

LGA4677

Server Height

2U

Compatible Device

Server CPU

Heat Pipes

5 Heat Pipes

Dimensions

0.39 × 0.39 × 0.39 inches

View on Amazon: CTDOFUM 2U LGA4677 5-Heatpipe Cooler

This is a 2U server heatsink from CTDOFUM designed for LGA4677 sockets across 4th and 5th generation server processors. It features five heat pipes, a high-speed PWM radiator fan, and a thermal rating of up to 400W TDP. If you run a high-density 2U rack chassis requiring dedicated hardware with an E1B bracket, this active cooler provides the high-capacity thermal dissipation needed for your server build.

Pros

• Thermal dissipation rating up to 400W TDP
• Five integrated heat pipes
• High-speed PWM radiator fan included
• Compact 2U form factor designed for server racks

Cons

• Limited strictly to LGA4677 server sockets
• Height exceeds clearance limits for 1U rack enclosures

Good fit if

• You need an active heatsink for an LGA4677 server socket.
• You run 4th or 5th generation server processors rated up to 400W TDP.
• You have a 2U rack chassis that accommodates an E1B bracket mount.

Skip if

• You are deploying hardware in a slim 1U server chassis.
• You use non-LGA4677 sockets or standard consumer motherboards.

Verdict: CTDOFUM 2U LGA4677 5-Heatpipe Cooler provides robust 400W TDP heat dissipation for compact 2U server racks. It is a reliable active cooling option if you need targeted LGA4677 socket support with an included E1B bracket.

4 Best premium

JUCMJXQEQ 2U LGA4677 5-Heatpipe Server Cooler

Best for: high-TDP LGA4677 2U server rack builds

Socket Compatibility

LGA4677

Server Height

2U

Compatible Device

Server CPU

Heat Pipes

5 Heat Pipes

View on Amazon: JUCMJXQEQ 2U LGA4677 5-Heatpipe Server Cooler

This JUCMJXQEQ unit is a server heatsink designed for 2U chassis installations. It is built with five heat pipes, a high-speed PWM fan, and a rated thermal capacity of 400W TDP. Built specifically for 4th and 5th generation server processors on socket LGA4677, this model includes an E1A bracket. It fits your build if you run high-draw CPUs in standard 2U rackmount setups.

Pros

• Rated for up to 400W TDP
• Equipped with 5 heat pipes
• Includes high-speed PWM fan
• Comes configured with E1A bracket

Cons

• Limited strictly to LGA4677 socket compatibility
• Requires 2U chassis height and will not fit 1U server chassis

Good fit if

• You need a 2U server cooler rated for 400W TDP.
• You use a system running on an LGA4677 server socket.
• You require an included E1A mounting bracket.

Skip if

• You operate a compact 1U server rack chassis.
• You need compatibility with non-LGA4677 sockets.

Verdict: JUCMJXQEQ 2U LGA4677 5-Heatpipe Server Cooler provides 400W TDP cooling capacity with five heat pipes and a high-speed PWM fan for 2U LGA4677 server setups. It gives you dedicated 4th and 5th generation server CPU thermal management when paired with an E1A bracket.

5 Best active

YQQEWI 2U Active Server Cooler

Best for: 2U server builds using LGA4677 or LGA4710

Socket Compatibility

LGA4677, LGA4710

Server Height

2U

Cooling Method

Active

Compatible Device

Server CPU

Lighting

RGB

Color

Black

View on Amazon: YQQEWI 2U Active Server Cooler

This YQQEWI active heatsink provides cooling for server CPUs in rack systems. It fits 2U server height enclosures and uses an active cooling setup to move air across the unit. The cooler is compatible with LGA4677 and LGA4710 sockets. It suits you if you need a dedicated active cooler designed specifically for 2U server chassis deployment and compatible server sockets.

Pros

• Supports LGA4677 and LGA4710 server sockets
• Fits standard 2U server chassis height
• Active cooling configuration with an integrated fan
• Black color design

Cons

• Lacks compatibility with consumer desktop sockets
• Does not fit smaller 1U server chassis

Good fit if

• You need an active heatsink sized for a 2U server rack.
• You use an LGA4677 or LGA4710 server socket.

Skip if

• You need a low-profile cooler for a 1U chassis.
• You are building a system with standard desktop processor sockets.

Verdict: YQQEWI 2U Active LGA4677 LGA4710 Cooler delivers direct active cooling tailored strictly for 2U server enclosures running LGA4677 or LGA4710 processors.

6 Best passive

BVIVDMIWF 1U LGA4189 Passive Heatsink

Best for: 1U LGA4189 blade and rack servers

Socket Compatibility

LGA4189

Material

Cooper Vapor Chamber

Server Height

1U

Cooling Method

Passive

Compatible Device

CPU

System Type

Server

View on Amazon: BVIVDMIWF 1U LGA4189 Passive Heatsink

This BVIVDMIWF heatsink is a 1U passive CPU cooling unit built with a copper vapor chamber. It fits LGA4189 server sockets and works inside 1U rackmount chassis or blade servers. Because it relies on passive cooling, you need external chassis airflow to move heat away from the processor. It suits you if you maintain high-density LGA4189 server racks with dedicated ducting.

Pros

• Copper vapor chamber design
• Compact 1U server profile
• Designed for blade and 1U servers
• Compatible with LGA4189 CPU sockets

Cons

• No integrated cooling fan
• Limited to socket LGA4189
• Requires high-velocity system airflow

Good fit if

• You run a 1U rack or blade server using socket LGA4189.
• You have dedicated chassis fans providing continuous system airflow.

Skip if

• You need an active cooler with an attached fan.
• You operate motherboards with sockets other than LGA4189.

Verdict: BVIVDMIWF 1U LGA4189 Passive Heatsink delivers a low-profile vapor chamber solution for dense rack enclosures. It requires dedicated chassis duct airflow to cool socket LGA4189 processors effectively.

7 Best fan

KFXJMY 2U 5 Heat Pipe Server Cooler

Best for: 2U server builds needing active fan cooling

Socket Compatibility

LGA4677, LGA4710

Server Height

2U

Compatible Device

Server CPU

Fan Size

6025MM

Dimensions

0.39 x 0.39 x 0.39 inches

Heat Pipes

5 Heat Pipes

View on Amazon: KFXJMY 2U 5 Heat Pipe Server Cooler

This KFXJMY cooling unit is an active server heatsink designed for standard 2U chassis enclosures. It incorporates five heat pipes alongside an active 6025 PWM fan to manage airflow across your processor. If you manage rack systems utilizing LGA4677 or LGA4710 server sockets, this cooler fits your 2U physical profile while delivering direct fan-driven heat dissipation for compatible hardware.

Pros

• Equipped with an integrated 6025 PWM fan
• Includes 5 heat pipes for thermal transfer
• Supports LGA4677 and LGA4710 server sockets
• Engineered for 2U server height

Cons

• Socket compatibility limited strictly to LGA4677 and LGA4710
• Not compatible with 1U server chassis heights

Good fit if

• You need active fan airflow inside a 2U server enclosure.
• You deploy server processors on LGA4677 or LGA4710 sockets.

Skip if

• You require cooling hardware for a 1U rack enclosure.
• You use motherboards with sockets other than LGA4677 or LGA4710.

Verdict: KFXJMY 2U Server Cooler with 6025 PWM Fan delivers active thermal regulation through five heat pipes for LGA4677 and LGA4710 platforms. It fulfills the exact physical clearance requirements of 2U server environments.

Specifications side by side

Key Specifications for Selecting Server Coolers

1. Count Heat Pipes

   Check the heat pipe count when you evaluate air coolers for high-wattage processors. Coolers like the CTDOFUM 2U LGA4677 feature five heat pipes to draw thermal energy away from the copper base plate into the fin array. More heat pipes provide increased surface area for rapid heat dissipation across heavy workloads. If your server operates continuously under dense computing loads, prioritize units configured with five dedicated heat pipes. This spec determines how efficiently thermal energy transfers before chassis air currents sweep heat away from the processor.

2. Match Carrier Bracket Types

   Check the exact bracket designation required by your server processor package. Modern enterprise sockets use specific carrier frames to align the CPU package with the heatsink base. For example, the JUCMJXQEQ 2U cooler specifies an included E1A bracket for 4th and 5th generation server configurations. Installing an incorrect carrier frame prevents proper mechanical alignment and pin contact. Inspect your processor ordering code and motherboard socket manual to confirm whether your build requires an E1A or E1B carrier bracket before finalizing your cooler selection.

3. Consider Vapor Chamber Technology

   Look for a vapor chamber feature if you need flat, compact thermal absorption across confined rack spaces. The BVIVDMIWF 1U heatsink integrates a vapor chamber base to spread heat uniformly across a low-profile surface. Vapor chambers use a sealed, fluid-filled internal cavity that evaporates and condenses liquid continuously. This configuration moves heat laterally much faster than solid metal blocks without increasing vertical heatsink height. Choose a vapor chamber when your rack enclosure lacks room for tall heat pipes but demands rapid thermal transfer across the CPU surface.

4. Measure Component Clearance Gaps

   Check the physical clearance between your heatsink base and irregular component surfaces on laptops or circuit boards. Products like the K5 PRO viscous putty accommodate variable component gaps up to 3mm. Unlike rigid pre-cut thermal pads that require precise thickness matching to prevent PCB bending, viscous putty compresses naturally to fill uneven spaces. If you service laptops, graphics cards, or consoles with non-uniform surface levels, confirm that your thermal interface compound can bridge uneven gaps without requiring exact millimeter-sized pad replacements.

5. Inspect Pre-Applied Thermal Paste

   Check whether a cooling unit includes factory-applied thermal interface material to streamline server deployment. The MITXPC 1U Liquid Cooler includes pre-applied Shin-Etsu compound directly on its cold plate. Pre-applied compound ensures even paste thickness straight out of the box and eliminates the need to source separate thermal syringes during installation. If you deploy systems rapidly or want to avoid application errors on large enterprise sockets, select coolers with factory-applied compound. You reduce assembly time while maintaining direct thermal contact from the initial mount.

6. Evaluate Integrated Fan Specifications

   Check whether the cooler includes an integrated blower or dedicated fan frame. The KFXJMY 2U Server Cooler incorporates a built-in 6025 PWM fan to deliver focused airflow across its internal fin matrix. Coolers with integrated fans provide direct active thermal control without relying entirely on chassis ducting. Compare the fan configuration to ensure your motherboard provides the necessary PWM header connections. Choosing a model with a dedicated onboard fan helps maintain sustained airflow across the heat pipes in systems lacking high-pressure chassis blowers.

Frequently asked questions

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