Adlink CoreModule 920 Manual do Utilizador descarregar pdf (Página 26)

Chapter 2 Product Overview

20 Reference Manual CoreModule 920

Environmental Specifications

Table 2-6 provides the most efficient operating and storage condition ranges required for this module.

Thermal/Cooling Requirements

The CPU is the primary source of heat on the board. The CoreModule 920 is designed to operate at the

maximum speed of the CPU and requires an active heatsink for extended temperatures (optional). A passive

heatsink is available (optional) and allows maximum speed operation within the Standard temperature range.

The passive heatsink will allow operation in the Extended temperature range if the CPU speed is locked at

800MHz. To lock the CPU speed at 800MHz, use the Power Consumption setting field in the CPU/PPM

Configuration submenu of the “Advanced BIOS Setup Screen” on page 40. See Figure 2-10 for height

measurements of the cooling assemblies.

Figure 2-10. Stack Heights of Cooling Assemblies

Table 2-6. Environmental Requirements

Parameter Conditions

Temperature

Standard –20° to +70° C (–4° to +158° F)

Extended (Optional) –40° to +85° C (–40° to +185° F)

Storage –55° to +85° C (–67° to +185° F)

Humidity

Operating 5% to 90% relative humidity, non-condensing

Non-operating 5% to 95% relative humidity, non-condensing

NOTE All heights are given in inches.

2.53

1.45

0.22

0.38

Passive Heat Sink

Active

Heat Sink

Fan

Heat Spreader

CM920_Cooling_Ht_b

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Adlink CoreModule 920 Manual do Utilizador Página 26