Figure 13. The Assembly Cumulative Mass Loss Data In Continuous Operation; Figure 14. Thermal Resistance Curve For Liquid Loss Of Reservoir - Intel QX9770 - Core 2 Extreme Quad-Core Processor Design Manual

Intel Thermal/Mechanical Reference Design Information
Figure 13. The Assembly Cumulative Mass Loss Data in Continuous Operation Test at
50 ºC and 1450 RPM
2.5
2.0
1.5
1.0
0.5
0.0
The reservoir presence in assembly and its impact on thermal performance was also
confirmed by drawing the liquid out in the increment of 5 mL and measuring thermal
performance at each increment. The Thermal resistance data are shown in Figure 14.
It can be seen that when the liquid of 65 mL or more is drawn, thermal resistance
goes up significantly. The test verifies the role of reservoir in maintaining thermal
performance with liquid loss up to the reservoir size of 38 mL and 27 mL beyond that.

Figure 14. Thermal Resistance Curve for Liquid Loss of Reservoir

Thermal and Mechanical Design Guidelines
0 2
1.200
1.000
0.800
0.600
0.400
0.200
0.000
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
4
Week
Theta ca vs. fluid level
Fluid Removed [ml]
Pump-1
Pump-2
Pump-3
6 8
Pump-1
Pump 3
Pump 2
49