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Intel BXSTS100P passive CPU heatsink silver aluminium fins 25.5mm tall 1.2kg

Intel

Intel BXSTS100P CPU cooler 25.5mm 95W passive heatsink 1.2kg

SKU CH-J8JA-HQX20 MPN BXSTS100P

Passive 25.5 mm aluminium heatsink rated for 95 W Xeon 5500 series CPUs, weighing 1.2 kg

  • TypeHeatsinks only
  • Weight1.2
  • FeaturesMaximum CPU TDP: 95W 1U or 2U rack and blade chassis with du
  • Passive cooling for silent operation
  • 95 W TDP rating handles Xeon 5500 series processors
  • Low 25.5 mm profile fits 1U or 2U rack chassis
  • 2 kg heatsink mass provides thermal capacity
  • Designed for ducted airflow in blade servers

Purpose-built passive cooler

The Intel BXSTS100P is a passive heatsink rated for 95 W TDP processors. It targets system integrators building 1U or 2U rack and blade servers where ducted chassis airflow replaces a fan. The 1.2 kg aluminium construction keeps weight low for dense deployments.

Rack-mount mechanical fit

The 25.5 mm profile matches the tight vertical clearance of 1U and 2U enclosures. Mounting holes align with Intel Xeon 5500 series retention brackets so the heatsink seats directly on the processor without a separate backplate. No fan header or power cable is required because the design relies entirely on chassis ducting.

Ducted-airflow dependency

Thermal performance assumes forced air moving through the chassis duct at vendor-specified velocity; without that airflow the 95 W rating cannot be sustained. The heatsink is not compatible with previous-generation server platforms or workstation boards lacking the correct mounting pattern. Buyers needing active cooling or broader socket support must choose a different solution.

Highlights

  • Passive cooling for silent operation
  • 95 W TDP rating handles Xeon 5500 series processors
  • Low 25.5 mm profile fits 1U or 2U rack chassis
  • 2 kg heatsink mass provides thermal capacity
  • Designed for ducted airflow in blade servers

Specifications

BrandIntel
ModelBXSTS100P
TypeHeatsinks only
Weight1.2
FeaturesMaximum CPU TDP: 95W
1U or 2U rack and blade chassis with ducted airflow to heat sink
Shipping weight0.91 kg
Package size152 × 152 × 152 mm

Questions about this item

What is the maximum CPU TDP this passive heatsink can handle?

The heatsink is rated for a maximum CPU TDP of 95W, so it can cool processors up to that thermal limit without active airflow.

What chassis clearance does the 25.5mm height require?

At 25.5mm tall, the cooler fits 1U or 2U rack and blade chassis that provide ducted airflow directly over the heatsink fins.

How is the STS100P mounted on Xeon 5500 series sockets?

It uses the standard Intel retention mechanism for the 5500 series; the common mistake is omitting the supplied thermal interface material or reusing old paste.

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