The stock fan that comes with Intel box processor would be too tall to fit in a 1U case or a compact mini ITX case (such as HIGH POWER mITX-0DB)

HIGH POWER LGA-1700-mITX has a height clearance of only 28mm to fit in all mini ITX & 1U cases. Although it is lower profile than the stock Intel fan, its large 95mm fan delivers cooling capability that is not compromised. Set your BIOS to silent mode will enable the fan to start spinning at around 1000 RPM when it would be amazingly quiet. Noise level remains to be acceptably low during normal system operation.

Heat Sink Material: Aluminum
Secure 4-screw mount vs less reliable snap-on mount
Fan Power Consumption: 12V DC @ 0.15A Fan Dimension: 95 x 95 x 15 mm
Fan Speed: 1000 - 3100 RPM ± 10%
Fan Air flow: 14.1 - 42.5 CFM ± 10%
Fan Air Pressure: 0.84 - 2.52mm H2O ± 10%
Bearing Type: Hydraulic
Fan Life Expectancy: 40,000 hours
Fan Noise Level: 18 - 28.44 dBA
Connector: 4-pin PWM (backward compatible with 3-pin)
Net weight: 170g