Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive, Maintenance Manual

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C141-E103-01EN 4 - 8
(4) Environmental temperature
Temperature condition at installed in a cabinet is indicated with ambient temperature measured 3
cm from the disk drive. At designing the system cabinet, consider following points.
•
Make a suitable air flow so that the DE surface temperature does not exceed 55°C.
•
Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling effect
by measuring temperature of specific ICs and the DE. These measurement results should be
within a criteria listed in Table 4.1.
Table 4.1 Surface temperature check point
No. Measurement point Criteria
1 Center of DE cover 55°C
2 Read channel LSI 83°C
3 VCM/SPM Driver 75°C
4 HDC 85°C
Figure 4.8 Surface temperature measurement points
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1
1
3
2
4
4
4
3
2
2
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MAJ3364 Series
MAJ3182, MAJ3091 Series
MAH Series