• Rows of sleek dark gray hpe dl325 gen12 server racks with closed-loop liquid cooling heat sink kit in white corridor
1 1

HPE

HPE P81954-B21 | DL325 Gen12 Closed-Loop Liquid Cooling Heat Sink Kit, ≥320W CPU

HPE P81954-B21 | DL325 Gen12 Closed-Loop Liquid Cooling Heat Sink Kit, ≥320W CPU

P81954-B21

Stock Status: Enquire

$4,781.60 AUD
$4,781.60 AUD
$4,781.60 AUD
Sale Stock Status: Enquire
Taxes included. Shipping calculated at checkout.

Description

The HPE ProLiant DL325 Gen12 Closed-Loop Liquid Cooling Heat Sink Kit (P81954-B21) is a purpose-built server cooling solution for high-TDP workloads requiring processor thermal dissipation of 320W or greater. Designed for the HPE ProLiant Compute DL325 Gen12 platform, the kit includes an integrated cold plate, pump, tubes, and radiator — delivering direct liquid cooling to the processor without requiring any external coolant infrastructure. This makes it ideal for dense compute environments running AMD EPYC processors at maximum TDP, where standard air cooling is insufficient.

The kit integrates with the DL325 Gen12's iLO 7 management system, which provides built-in leak detection with automatic system shutdown in the event of a leak — ensuring server and data centre safety. Installation requires the companion Liquid Cooling Fan Kit (P81953-B21) and Air Baffle Kit (P81928-B21). The module is field upgradeable and self-repairable, with a recommended replacement interval of every five years. Note: this kit is not compatible with GPU CTO server configurations. Visit iptrading.com.au to secure your order — enterprise-grade hardware with expert support.

Features

- Closed-loop design — no external coolant supply or data centre liquid infrastructure required
- Direct cold plate contact with processor for superior thermal performance at 320W+ TDP
- iLO 7 integrated leak detection automatically shuts down the server on leak event, preventing hardware damage
- Server is prevented from powering on until leakage event is cleared via REST API
- Compact internal radiator placement maintains standard DL325 Gen12 chassis footprint
- Field upgradeable and self-repairable — reduces downtime and simplifies maintenance
- Supports AMD EPYC high-TDP processor configurations in the DL325 Gen12 platform

Warranty

Hewlett Packard Enterprise (HPE) offers a standard limited hardware warranty on its products, with coverage periods varying by product line. For instance, HPE ProLiant servers typically come with a 1 to 3-year limited warranty, while other products may have different durations.
Extended Warranty Options via IP Trading:
IP Trading offers tailored extended warranty solutions and support packages for HPE products, ensuring your IT infrastructure remains protected beyond the standard warranty period. Contact our team to explore options that align with your organisation's needs.

All technical data should be verified on the manufacturer data sheets.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Compatible server: HPE ProLiant Compute DL325 Gen12
- Required for processors with TDP ≥ 320W
- Includes: cold plate, pump, tubes, and radiator
- Cooling method: closed-loop liquid cooling (no external coolant infrastructure required)
- Radiator mounted internally between cooling fans and drive backplane
- Requires Liquid Cooling Fan Kit P81953-B21
- Requires Air Baffle Kit P81928-B21
- iLO 7 integrated leak detection with automatic system shutdown
- Not compatible with GPU CTO server configurations
- Field replaceable / self-repairable
- Recommended replacement interval: every 5 years
- Coolant is not user-replaceable

FAQs

Q: Which server is the P81954-B21 compatible with?
A: The P81954-B21 is designed exclusively for the HPE ProLiant Compute DL325 Gen12 server. It is not compatible with other HPE server generations or models.

Q: When is this liquid cooling kit required instead of a standard air-cooled heat sink?
A: This kit is required when the installed AMD EPYC processor has a TDP (Thermal Design Power) of 320W or greater. High-TDP processors exceed the thermal capacity of standard air cooling heat sinks in the DL325 Gen12 chassis.

Q: Does this kit require external liquid cooling infrastructure in the data centre?
A: No. The P81954-B21 is a fully self-contained closed-loop system. It includes its own cold plate, pump, tubes, and radiator — no external coolant supply, chilled water loops, or facility-level liquid cooling infrastructure is needed.

Q: What additional components are required to install this kit?
A: Installation requires two additional kits: the HPE Liquid Cooling Fan Kit (P81953-B21) and the HPE Air Baffle Kit (P81928-B21). Both must be present for proper installation and airflow management.

Q: What happens if a leak is detected in the cooling module?
A: The HPE iLO 7 management controller provides integrated leak detection. If a leak is detected, the system automatically shuts down to prevent hardware damage. The server cannot be powered back on until the leakage event is cleared using the REST API recovery process.

Q: Can I purchase the HPE P81954-B21 in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller stocking HPE ProLiant server accessories including the P81954-B21. Contact our team for pricing, availability, and expert guidance on DL325 Gen12 build configurations.

Recently Viewed

  • Request for a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us