ADLINK Express-HRR - Manual (Page 19)

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
1.44
0.22
0.22
0.22
Heatsink
Fan
Heat Spreader