Noctua NH-D9 DX-3647 4U CPU Cooler (NH-D9 DX-3647 4U)
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Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-D9 DX-3647 4U features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 92mm size NH-D9L heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A9 92mm fans (high-efficiency 2500rpm version), it combines strong performance with excellent compatibility for 4U systems and other space-restricted applications. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-D9 DX-3647 4U 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-D9 DX-3647 4U is a dedicated version for the Intel LGA3647 socket. 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)
134 mm
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Width (without fan)
95 mm
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Depth (without fan)
95 mm
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Weight (without fan)
584 g
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Height (with fan)
134 mm
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Width (with fan)
95 mm
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Depth (with fan)
120 mm
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Weight (with fan)
769 g
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Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
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Fan compatibility
2x 92x92x25mm
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Scope of delivery
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Model
2x Noctua NF-A9 HS-PWM
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Bearing
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Max. rotational speed (+/- 10%)
2500 RPM
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Min. rotational speed (PWM, +/-20%)
400 RPM
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96,3 m³/h
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Max. acoustical noise
30,6 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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