6 Best Alternatives to the HP Hewlett Packard Enterprise HPE (2026)
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The HPE ProLiant DL3X5 Gen11 1U Heat Sink is a precise replacement part for server maintenance. If you are looking for hp hewlett packard enterprise hpe alternatives, you may need different specifications or brands. This original kit measures 9.6 inches wide and 1.1 inches high. It weighs just 3.04 ounces. These dimensions ensure it fits the specific 1U server chassis correctly. The model P48913-B21 is designed for standard thermal performance in that environment.
You might want other options if your server uses a different socket or requires passive cooling. Some alternatives are heavier and wider to handle more heat. Others fit older desktop sockets like LGA 478. We selected these products because their specs overlap with the original. They share the 1U server height constraint or similar physical footprints. This guide helps you find a part that matches your hardware requirements. You can compare widths, lengths, and weights to find the right fit. Each option serves a specific thermal need. Focus on the dimensions and compatibility to make your choice.
How alternatives compare to HPE
Supermicro 1U Processor Heatsink
The Supermicro 1U Processor Heatsink differs significantly in weight and construction. It weighs 4 pounds, which is much heavier than the HPE kit at 3.04 ounces. This mass suggests a larger thermal capacity for passive cooling. Its dimensions are 7.2 inches wide and 10.4 inches long. You should choose this if you need a robust, fanless solution for a 1U server. The HPE unit is lighter and smaller, designed for specific active cooling setups. This Supermicro option provides silent operation but requires adequate chassis airflow to dissipate heat effectively without a fan.
Intel Socket 478 Copper Core CPU Cooler
This Intel cooler targets a completely different market segment. It is designed for legacy Socket 478 processors, not modern server CPUs. The material is copper, which offers good thermal conductivity for older Pentium 4 or Celeron chips. It includes a fan, unlike many passive server heatsinks. The HPE ProLiant unit is built for high-density 1U server environments. You would only pick this Intel alternative if you are restoring old desktop hardware. It does not fit current server architectures. This cooler is a niche part for legacy maintenance rather than a direct replacement for modern enterprise server cooling needs.
Supermicro 1U Passive Server Heatsink
The Supermicro LGA1366 heatsink is much larger than the HPE kit. It measures 25 inches wide, requiring a chassis that can accommodate this unusual width. It weighs 12.8 ounces. This unit is passive and designed for dual-processor Xeon 5500 series chips. The HPE heatsink is compact at 9.6 inches wide. You should select this Supermicro part only if you have an LGA1366 platform. It offers silent cooling but lacks the compact form factor of the HPE unit. This alternative is specialized for specific older server platforms and does not fit standard modern 1U server layouts.
Supermicro 1U Passive Server Heatsink
This Supermicro heatsink is compact and passive, designed for LGA 1150 and LGA 1155 sockets. It weighs 8 ounces and measures 1.1 inches wide. The HPE kit is lighter at 3.04 ounces but wider at 9.6 inches. This alternative provides silent operation for Intel processors in 1U servers. You would choose it if you need compatibility with LGA 1150 chips. It relies on chassis airflow for heat dissipation. The HPE unit is tailored for ProLiant servers. This Supermicro option is a good fit for silent builds but is limited to specific Intel socket types and passive cooling requirements.
Supermicro 1U Passive Server CPU Heatsink
The Supermicro AMD G34 heatsink is passive and weighs 14.4 ounces. It measures 1.02 inches wide and 3.94 inches long. This unit is designed for AMD G34 servers, offering silent operation. The HPE heatsink is lighter and wider, built for Intel-based ProLiant servers. You should pick this alternative if you are building or maintaining an AMD G34 system. It prioritizes silence over universal compatibility. This heatsink is a specialized component for specific AMD platforms. It does not fit the HPE server model. Choose this if your priority is silent cooling for AMD G34 processors in a 1U chassis.
Supermicro 1U LGA 2011 Heatsink
This Supermicro heatsink is designed for LGA 2011 sockets and Xeon E5-2600 CPUs. It weighs 0.7 kilograms, which is significantly heavier than the HPE kit. It measures 1.1 inches wide and 4.1 inches long. The unit is passive, relying on chassis airflow. The HPE heatsink is lighter and wider. You should choose this alternative if you need cooling for LGA 2011 processors in a 1U server. It provides silent operation but is limited to specific Intel platforms. This option is suitable for tight chassis with strong airflow. It is not compatible with the HPE server model or other socket types.
Quick picks
Our 7 picks
HPE ProLiant DL3X5 Gen11 1U Heat Sink
Best for: HPE ProLiant DL3X5 Gen11 server maintenance
- Server Height
- 1U
- Compatible Device
- HPE ProLiant DL3X5 Gen11 Server
- Dimensions
- 9.6x8.2x1.1 inches
- Weight
- 3.04 ounces
View on Amazon: HPE ProLiant DL3X5 Gen11 1U Heat Sink Affiliate link
This is a standard 1U heat sink kit designed for the HPE ProLiant DL3X5 Gen11 server. It measures 9.6 inches wide, 8.2 inches long, and 1.1 inches high. The unit weighs 3.04 ounces. You need this part to maintain proper cooling for your server's processor. It fits the specific 1U chassis height. This component is essential for standard thermal management in this server model.
Pros
- Designed specifically for HPE ProLiant DL3X5 Gen11 servers
- Fits 1U server chassis height of 1.1 inches
- Lightweight at 3.04 ounces
- Standard dimensions of 9.6 x 8.2 inches
Cons
- Limited to compatibility with only the DL3X5 Gen11 model
- Standard cooling performance without high-end features
- No mention of fan or active cooling components
Good fit if
- You own an HPE ProLiant DL3X5 Gen11 server
- You need a direct replacement for the standard CPU heat sink
- You require a 1U form factor component
Skip if
- You have a different server model
- You need active cooling with fans
- You are building a desktop PC
Verdict: HPE DL3X5 Gen11 1U Standard Heat Sink is the correct replacement part for owners of the HPE ProLiant DL3X5 Gen11 server who need to maintain standard thermal specifications.
Supermicro 1U Processor Heatsink
Best for: 1U server passive cooling
- Server Height
- 1U
- Dimensions
- 10.4 x 7.2 x 4.6 inches
- Weight
- 4 pounds
View on Amazon: Supermicro 1U Processor Heatsink Affiliate link
This is a Supermicro 1U processor heatsink system cooler. It measures 10.4 inches long, 7.2 inches wide, and 4.6 inches high. The unit weighs 4 pounds. You need this if you are building or maintaining a 1U server chassis. It provides passive cooling for your processor without requiring a fan. The solid metal construction helps dissipate heat effectively in tight server environments.
Pros
- Fits standard 1U server chassis dimensions
- Heavy 4-pound build for thermal mass
- Passive design requires no fan power
Cons
- No fan included for active cooling
- Large 10.4-inch length may not fit all 1U slots
- Does not specify compatible CPU socket types
Good fit if
- You are assembling a 1U server rack
- You need a passive cooling solution for a specific CPU
- You require a heavy heatsink for heat dissipation
Skip if
- You need active fan cooling for high TDP CPUs
- You have a chassis with limited 10.4-inch clearance
- You are building a standard desktop PC
Verdict: Supermicro 1U CPU Heatsink 4 lbs is a solid passive cooling option for 1U servers. You should buy it if you need a heavy, fanless heatsink that fits standard rack dimensions.
Intel Socket 478 Copper Core CPU Cooler
Best for: legacy Socket 478 processor cooling
- Socket Compatibility
- Socket 478
- Material
- Aluminum, Copper core
- Compatible Device
- Intel Pentium 4, Celeron processors
- Fan Size
- 2.5-inch
- Mounting Type
- Heat sink retention clip
- Features
- Fan
View on Amazon: Intel Socket 478 Copper Core CPU Cooler Affiliate link
This Intel heatsink and fan assembly is built for Socket 478 processors. It uses a copper core inside an aluminum sink to manage heat for Pentium 4 and Celeron chips up to 3.40 GHz. The unit includes a 2.5-inch fan with a 3-pin connector. You need a retention clip for installation. It is a direct replacement for older desktop systems.
Pros
- Copper core for efficient heat transfer
- Supports processors up to 3.40 GHz
- Includes 2.5-inch fan with 3-pin connector
- Uses standard retention clip mounting
Cons
- Only compatible with Socket 478
- Limited to older Pentium 4 and Celeron CPUs
- Small 2.5-inch fan size
Good fit if
- You are repairing a legacy Socket 478 system
- You need a direct replacement for an Intel OEM cooler
- You use Pentium 4 or Celeron processors
Skip if
- You have a modern CPU socket
- You need active cooling for high-end gaming
- You require a larger 120mm or 140mm fan
Verdict: Intel Copper Core Socket 478 Cooler is a specific replacement part for older desktops. It fits users who need to restore functionality to legacy Pentium 4 or Celeron machines.
Supermicro 1U Passive Server Heatsink
Best for: 1U LGA1366 Xeon 5500 servers
- Socket Compatibility
- LGA1366
- Server Height
- 1U
- Cooling Method
- Passive
- Compatible Device
- 1U DP & 10-Blade Servers
- Dimensions
- 3.6 x 25 x 3.6 inches
- Mounting Type
- Screw & Spring
View on Amazon: Supermicro 1U Passive Server Heatsink Affiliate link
This Supermicro unit is a 1U passive heatsink designed for Intel LGA1366 sockets. It supports Xeon 5500 series processors in 1U dual-processor and 10-blade servers. The design uses screw and spring mounting for secure installation. It measures 25 by 3.6 by 3.6 inches and weighs 12.8 ounces. You need this for rack servers requiring silent, fanless cooling for specific Intel platforms.
Pros
- Passive cooling eliminates fan noise
- Compatible with LGA1366 sockets
- Supports Xeon 5500 series CPUs
- Uses screw and spring mounting
Cons
- Passive design limits heat dissipation
- Only fits LGA1366 socket type
- Requires specific 1U server chassis
Good fit if
- You use a 1U dual-processor server
- You need silent operation for LGA1366
- You run Xeon 5500 series CPUs
Skip if
- You have an LGA1155 or LGA2011 socket
- You need active fan cooling
- You use AMD G34 processors
Verdict: Supermicro 1U Passive Heatsink for LGA1366 is a specialized component for 1U dual-processor servers using Xeon 5500 series chips. It fits only LGA1366 platforms and requires a chassis that accommodates its 25-inch width.
Supermicro 1U Passive Server Heatsink
Best for: silent 1U server builds with LGA 1150
- Socket Compatibility
- LGA1150, LGA1155, LGA1156
- 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 environments. 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. You need it for X8 or X9 1U single-processor servers. It uses a screw spring and mounting bracket for installation. This option suits systems requiring silent, fanless operation.
Pros
- Passive cooling method eliminates fan noise
- Compatible with LGA 1150, 1155, and 1156 sockets
- Fits standard 1U server chassis dimensions
- Includes screw spring and mounting bracket
Cons
- Passive design requires adequate case airflow
- Limited to 1U single-processor server form factors
- No fan included for active cooling assistance
Good fit if
- You need silent cooling for a 1U server
- You use an Intel LGA 1150 or 1155 processor
- You have a chassis with strong airflow
Skip if
- You require active fan-based cooling
- You are building a standard desktop PC
- You use a socket other than LGA 1150/1155/1156
Verdict: Supermicro 1U Passive Heatsink LGA 1150 is a compact, fanless cooling unit for 1U servers. It fits Intel LGA 1150 processors in systems that rely on chassis airflow for heat dissipation.
Supermicro 1U Passive Server CPU Heatsink
Best for: 1U AMD G34 server builds
- Socket Compatibility
- Socket G34, Socket F(1207 Pin)
- Server Height
- 1U
- Cooling Method
- Passive
- Compatible Device
- 10-Blade Server
- Dimensions
- 3.94 x 1.02 x 3.54 inches
- Mounting Type
- Screw and Spring
View on Amazon: Supermicro 1U Passive Server CPU Heatsink Affiliate link
This Supermicro SNK-P0042P is a 1U passive heatsink designed for AMD Socket G34 and Socket F processors. It measures 3.94 by 1.02 by 3.54 inches and weighs 14.4 ounces. The unit uses a screw and spring mounting method. It fits 10-blade server applications. You should use this if you need a low-profile cooling solution for specific AMD server CPUs without active fans.
Pros
- Passive cooling design eliminates fan noise
- Compatible with AMD Socket G34 and Socket F
- Low 1U profile fits dense server racks
- Secure screw and spring mounting system
Cons
- Limited to specific AMD server sockets only
- Passive design requires strong case airflow
- Heavier than many active 1U coolers
Good fit if
- You are building a 1U AMD server
- You need silent passive cooling for G34 CPUs
- You require screw and spring mounting stability
Skip if
- You use Intel or non-G34 AMD CPUs
- You need active fan cooling for high TDP
- You require RGB lighting or smart features
Verdict: Supermicro 1U Passive AMD Heatsink is a specialized cooling solution for 1U AMD G34 servers. It suits engineers who prioritize silent operation and specific socket compatibility over universal CPU support.
Supermicro 1U LGA 2011 Heatsink
Best for: 1U server cooling for LGA 2011 Xeon E5-2600
- Socket Compatibility
- LGA2011
- Server Height
- 1U
- Compatible Device
- Intel Xeon Processor E5-2600 Series
- Mounting Type
- Screws & Springs for Narrow ILM
- Dimensions
- 4.1 × 1.1 × 3.2 inches
- Weight
- 0.7 kilograms
View on Amazon: Supermicro 1U LGA 2011 Heatsink Affiliate link
This Supermicro SNK-P0047PS is a 1U passive heatsink designed for LGA 2011 sockets. It supports Intel Xeon E5-2600 series processors and uses screws and springs for narrow ILM mounting. The unit measures 4.1 inches in length, 3.2 inches in height, and weighs 0.7 kilograms. It fits X9 and B9 server chassis. You need active airflow to cool this passive unit effectively.
Pros
- Compatible with LGA 2011 socket
- Supports Intel Xeon E5-2600 series
- Uses screws and springs for mounting
- Fits 1U server chassis
Cons
- Passive design requires strong case airflow
- No fan included for active cooling
- Limited to specific server environments
Good fit if
- You use an LGA 2011 socket
- You run Intel Xeon E5-2600 processors
- You have a 1U server chassis with good airflow
Skip if
- You need a fan included
- You use a consumer desktop motherboard
- You lack sufficient case airflow
Verdict: Supermicro 1U Heatsink for LGA 2011 is a specialized cooling solution for 1U servers. It fits well if you need passive cooling for Xeon E5-2600 CPUs in a tight chassis with strong airflow.
Specifications side by side
| Spec | HPE ProLiant DL3X5 Gen11 1U Heat Sink | Supermicro 1U Processor Heatsink | Intel Socket 478 Copper Core CPU Cooler | Supermicro 1U Passive Server Heatsink | Supermicro 1U Passive Server Heatsink | Supermicro 1U Passive Server CPU Heatsink | Supermicro 1U LGA 2011 Heatsink |
|---|---|---|---|---|---|---|---|
| Socket Compatibility | not stated | not stated | Socket 478 | LGA1366 | LGA1150, LGA1155, LGA1156 | Socket G34, Socket F(1207 Pin) | LGA2011 |
| Material | not stated | not stated | Aluminum, Copper core | not stated | not stated | not stated | not stated |
| Server Height | 1U | 1U | not stated | 1U | 1U | 1U | 1U |
| Cooling Method | not stated | not stated | not stated | Passive | Passive | Passive | not stated |
| Compatible Device | HPE ProLiant DL3X5 Gen11 Server | not stated | Intel Pentium 4, Celeron processors | 1U DP & 10-Blade Servers | X8, X9 1U UP Servers | 10-Blade Server | Intel Xeon Processor E5-2600 Series |
| Fan Size | not stated | not stated | 2.5-inch | not stated | not stated | not stated | not stated |
| Dimensions | 9.6x8.2x1.1 inches | 10.4 x 7.2 x 4.6 inches | not stated | 3.6 x 25 x 3.6 inches | 3.6 x 1.1 x 3.6 inches | 3.94 x 1.02 x 3.54 inches | not stated |
| Mounting Type | not stated | not stated | Heat sink retention clip | Screw & Spring | Screw Spring, Mounting Bracket | Screw and Spring | Screws & Springs for Narrow ILM |
| Features | not stated | not stated | Fan | not stated | not stated | not stated | not stated |
| Weight | 3.04 ounces | 4 pounds | not stated | 12.8 ounces | 8 ounces | 14.4 ounces | 0.7 kilograms |
| Model | P48913-B21 | SNK-0032 | CS91249-002 | SNK-P0037P | SNK-P0046P | SNK-P0042P | SNK-P0047PS |
Frequently asked questions
What is the best replacement for the HPE ProLiant DL3X5 Gen11 heat sink?
The HPE ProLiant DL3X5 Gen11 1U Heat Sink is the correct replacement part for owners who need to maintain standard thermal specifications. It measures 9.6 inches wide, 8.2 inches long, and 1.1 inches high. The unit weighs 3.04 ounces and fits 1U server chassis. This ensures compatibility with the original equipment manufacturer's design requirements.
Which alternative heatsink is best for budget-conscious 1U server builds?
The Supermicro 1U Processor Heatsink is a solid passive cooling option for 1U servers. It weighs 4 pounds, offering significant mass for heat dissipation. Its dimensions are 7.2 inches wide, 10.4 inches long, and 4.6 inches high. You should buy it if you need a heavy, fanless heatsink that fits standard rack dimensions.
How do I cool legacy Socket 478 processors in older desktops?
The Intel Copper Core Socket 478 Cooler is a specific replacement part for older desktops. It is designed for legacy Pentium 4 or Celeron machines. The model CS91249-002 includes a fan for active cooling. It fits users who need to restore functionality to legacy hardware without upgrading the entire system.
What heatsink works for LGA1366 Xeon 5500 servers in a 1U chassis?
The Supermicro 1U Passive Heatsink for LGA1366 is a specialized component for dual-processor servers using Xeon 5500 series chips. It fits only LGA1366 platforms. It requires a chassis that accommodates its 25-inch width. The unit measures 3.6 inches high and weighs 12.8 ounces, providing silent operation for specific server builds.
Which passive heatsink is best for LGA 1150 processors in 1U servers?
The Supermicro 1U Passive Heatsink LGA 1150 is a compact, fanless cooling unit for 1U servers. It fits Intel LGA 1150 and LGA 1155 processors. The model SNK-P0046P weighs 8 ounces and measures 1.1 inches wide. It relies on chassis airflow for heat dissipation, making it ideal for silent server builds.
What is the best cooling solution for 1U AMD G34 server builds?
The Supermicro 1U Passive AMD Heatsink is a specialized cooling solution for 1U AMD G34 servers. It suits engineers who prioritize silent operation and specific socket compatibility. The model SNK-P0042P weighs 14.4 ounces and measures 1.02 inches wide. It offers a targeted solution for AMD-based enterprise hardware.
Which heatsink is recommended for LGA 2011 Xeon E5-2600 CPUs in 1U servers?
The Supermicro 1U Heatsink for LGA 2011 is a specialized cooling solution for 1U servers. It fits well if you need passive cooling for Xeon E5-2600 CPUs. The model SNK-P0047PS weighs 0.7 kilograms and measures 1.1 inches wide. It requires a tight chassis with strong airflow to maintain optimal temperatures.