Seagate ST12450W, Product Manual

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24 ST12450W/WD Product Manual, Rev. A
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.
Maximum allowable operating temperatures are listed in the last column.
Operation above these values may adversely affect the drive’s ability to meet
functional specifications.
Air-flow cooling
ST12450W
single-ended
MTBF
500k hours
Card Component Reference case temperature (°C)
GYHX tbd tbd tbd
GYHX tbd tbd tbd
GYHX tbd tbd tbd
GYHX tbd tbd tbd
GYHX tbd tbd tbd
HDA housing tbd Figure 9 tbd
The air-flow pattern with which the temperature guidelines above were
generated is shown in Figure 6. Local average air velocities were 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. GYHX temperature measurement locations