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**Noctua NH-U14S DX4677 Review: Compatible Cooling for Intel Xeon 658X (250W) Workstations** The Noctua NH-U14S DX4677, a well-regarded single-tower heatsink, proves compatible with the 250W Intel Xeon 658X processor on the ASUS Pro WS W890E SAGE SE motherboard, provided the correct LGA4710 carrier frame is used. This SEO-focused summary addresses search intent for workstation CPU cooling solutions, particularly for Sapphire Rapids/Emerald Rapids Xeon W processors. The cooler, purchased on Amazon, arrives pre-assembled with two Noctua NF-A15 140mm PWM fans, though disassembly and reassembly are required for installation. The DX4677 variant features an enlarged contact plate designed for Intel Xeon 6 series and prior Sapphire Rapids/Emerald Rapids generations (excluding Xeon 6900E/P series). Noctua includes pre-applied thermal interface material, a Y-cable, and a mounting tool, adding convenience for server/workstation builders. Key specifications: 250W TDP support, LGA4710 mounting, quiet operation with tall profile. The heatsink is ideal for enthusiasts upgrading Xeon W processors without needing a new cooler platform. Noctua’s brown box packaging and reliable build quality remain consistent. This quick look confirms the NH-U14S DX4677 as a viable, high-performance air-cooling option for demanding workstation CPUs like the Intel Xeon 658X.