Datasheet > 316963-002

316963-002

更新时间： 2022-12-14 19:11:45

品牌	Logo	应用领域
英特尔 - INTEL		/
页数	文件大小	规格书
100页	1346K
描述
Supporting the Intel Celeron processor

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316963-002 数据手册

Boxed Processor Specifications

7.3.2

Variable Speed Fan

The boxed processor fan will operate at different speeds over a short range of internal

chassis temperatures. This allows the processor fan to operate at a lower speed and

noise level, while internal chassis temperatures are low. If internal chassis temperature

increases beyond a lower set point, the fan speed will rise linearly with the internal

temperature until the higher set point is reached. At that point, the fan speed is at its

maximum. As fan speed increases, so does fan noise levels. Systems should be

designed to provide adequate air around the boxed processor fan heatsink that remains

cooler then lower set point. These set points, represented in Figure 31 and Table 33,

can vary by a few degrees from fan heatsink to fan heatsink. The internal chassis

temperature should be kept below 38 ºC. Meeting the processor's temperature

specification (see Chapter 5) is the responsibility of the system integrator.

The motherboard must supply a constant +12 V to the processor's power header to

ensure proper operation of the variable speed fan for the boxed processor. Refer to

Table 33 for the specific requirements.

Figure 31.

Boxed Processor Fan Heatsink Set Points

Higher Set Point

Highest Noise Level

Increasing Fan

Speed & Noise

Lower Set Point

Lowest Noise Level

Internal Chassis Temperature (Degrees C)

Table 33.

Fan Heatsink Power and Signal Specifications

Boxed Processor Fan

Heatsink Set Point (°C)

Boxed Processor Fan Speed

Notes

When the internal chassis temperature is below or equal to

this set point, the fan operates at its lowest speed.

Recommended maximum internal chassis temperature for

nominal operating environment.

X ≤ 30

When the internal chassis temperature is at this point, the

fan operates between its lowest and highest speeds.

Recommended maximum internal chassis temperature for

worst-case operating environment.

Y = 35

When the internal chassis temperature is above or equal to

this set point, the fan operates at its highest speed.

Z ≥ 38

NOTES:

1. Set point variance is approximately ± 1 °C from fan heatsink to fan heatsink.

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1...94 95 969798 99 100

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