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Product Code: CFHO-431
MPN #: P39589-B21
Tired of server crashes caused by overheating CPUs? The HPE P39589-B21 CPU Heatsink / Radiator Block - Synergy 480 Gen11 Server Cooling is the part you need to keep your Synergy 480 Gen11 running cool and stable. This passive air cooler fits directly onto the processor and moves heat away with a copper-aluminum design. When the heatsink fails, the CPU temperature spikes, leading to throttling or shutdowns. Replace the old unit with this genuine HPE part and protect your investment.
Overheating is the most common cause of downtime in data centers that run HPE Synergy 480 Gen11 servers. If the processor cannot release heat fast enough, performance drops and hardware can be damaged. This heatsink solves that issue by providing a reliable passive cooling path that matches the original design specifications. It eliminates hot spots, keeps the CPU within safe limits, and lets you run workloads without worrying about thermal limits. The result is a smoother, longer-lasting server. With this part installed, you also keep the servers acoustic profile low, because no fan is required to move heat away.
| Part Number | P39589-B21 |
| Product Type | CPU Heatsink / Radiator Block |
| Category | Air Coolers |
| Cooling Method | Passive Air Cooling |
| Compatibility | HPE Synergy 480 Gen11 |
| Material | Aluminum / Copper (typical HPE design) |
| Application | CPU cooling |
| Manufacturer | HPE |
| Estimated Weight | ~1.0–1.2 kg |
| Warranty | HPE server base warranty or reseller warranty |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)