Seagate Barracuda ST11950N, Руководство по эксплуатации продукта

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24 Barracuda 1 and 2 Product Manual, Rev. C
To confirm that required cooling for the Barracuda electronics and HDA is
provided, place the drive in its final mechanical configuration, perform
random write/read operations, and after the temperatures stabilize, measure
the case temperature of the components listed below.
Air-flow cooling
ST11950N and ST12550N single-ended drives
MTBF
500k hours
Card Component Reference case temperature (°C)
TYFX Transmitter U5 57
TYFX Writer U35 66
TYFX LSI U4 60
TYFX VIC2 U20 59
TYFX 1021 U55 57
HDA housing Figure 11 48
The air-flow pattern with which the temperature guidelines above were
generated is shown in Figure 6 (opposite direction). Local average air
velocity was 0.61 msec (120 lfpm) and inlet air temperature to the drive was
30°C (86°F).
The maximum allowable HDA case temperature is 60°C.
Figure 7. TYFX temperature measurement locations
U5 U35
U4 U20 U55