Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-U12S DX-3647 features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 120mm size NH-U12S heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A12x25 120mm fans, it provides an excellent balance of performance, compatibility and quietness of operation. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-U12S DX-3647 forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers.
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Notes and warnings
Please note that the NH-U12S DX-3647 is a dedicated version for the Intel LGA3647. Due to its customised larger base, it cannot be used on any other sockets and is incompatible with Noctua’s standard mounting kits.
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Intel Xeon LGA3647
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Height (without fan)
158 mm
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Width (without fan)
125 mm
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Depth (without fan)
45 mm
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Weight (without fan)
626 g
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Height (with fan)
158 mm
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Width (with fan)
125 mm
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Depth (with fan)
97 mm
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Weight (with fan)
1018 g
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Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
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Max. TDP
see TDP guide
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Fan compatibility
120x120x25
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Scope of delivery
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Model
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Bearing
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Max. rotational speed (+/- 10%)
2000 RPM
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Min. rotational speed (PWM, +/-20%)
450 RPM
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102,1 m³/h
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Max. acoustical noise
22,6 dB(A)
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Input power
1,68 W
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Voltage range
12 V
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MTTF
> 150.000 h
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