Grounding; Figure 5-3 Grounding Diagram - Western Digital WD15NPVX Technical Reference Manual

WD Green MB500M-6Gb Installation and Setup Procedures
5.3.3

Grounding

For best results, mount the drive with all four screws in the side grounded to the chassis (positions A, B,
C, and D below). You must ground the drive with at least one mounting screw in position A (side
mounting) or position 1 (top face mounting).
When mounting the drive in a chassis or system, the chassis or system should never contact the cross-
hatched area "E" to prevent electrical shorting of the PCBA or drive. Contact should be limited to the
side mounting (A,B,C, and D) or top facing mounting (1, 2, 3, and 4).
Figure 5-3. Grounding Diagram
E
Side Mounting Use four metal screws in A, B, C, and D. If less than four screws are used, remove in
–
this order: C, D, and then B. You must use a screw in position A.
Top face Mounting–Use four metal screws in 1, 2, 3 and 4. If less than four screws are used, remove in
this order: 2, 4, and then 3. You must use a screw in position 1.
2679-771422-A00 RELEASED 5/2/13 (WD CONFIDENTIAL) 39