Owner manual

Chapter 2 Product Overview

Express-HRR Reference Manual 15

Thermal/Cooling Requirements

The Express-HRR is designed to operate at its maximum CPU speeds of 1.5GHz, 2.1GHz, and 2.2GHz and

requires a thermal solution to cool the CPU, PCH, and voltage regulators. ADLINK offers two optional

cooling solutions as well as a heat spreader platform on which to build a cooling solution. (See Table 2-7 for

descriptions of cooling options)

Figure 2-7. Stack Heights of Cooling Assemblies (Side Views)

NOTE The overall system design must keep the ICs within their operating temperature

specifications.

Table 2-7. ADLINK Optional Cooling Solutions

Cooling Solution Description

Passive Heatsink

(without fan)

Qualified to maintain optimal performance up to +70°C.

Active Heatsink

(with fan)

Qualified to maintain optimal performance up to +85°C. (Note: The

2715QE CPU requires a fan and is qualified only for +70°C.)

Heat Spreader Provides a simple thermal platform on which to build a cooling solution.

NOTE All heights are given in inches.

HRR_Cooling_Ht_a

0.43

1.84

1.44

0.22

Heatsink

Fan

Heat Spreader