Drive Mounting; Grounding; Air Flow - Seagate ST400FM0323 Product Manual

Note. Air flows in the direction shown (back to front)
or in reverse direction (front to back)
Note. Air flows in the direction shown or
in reverse direction (side to side)
Figure 23.

Air flow

Note.
Image may not represent actual product, for reference only.
10.3

Drive mounting

Mount the drive using the bottom or side mounting holes. If mounting the drive using the bottom holes, ensure not to physically
distort the drive by attempting to mount it on a stiff, non-flat surface.
The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm). The following equation and paragraph define the allowable
mounting surface stiffness:
where K is the mounting surface stiffness (units in lb/in or N/mm) and X is the out-of-plane surface distortion (units in inches or
millimeters). The out-of-plane distortion (X) is determined by defining a plane with three of the four mounting points fixed and
evaluating the out-of-plane deflection of the fourth mounting point when a known force (F) is applied to the fourth point.
10.4

Grounding

Signal ground (PCBA) and case ground are connected together in the drive and cannot be separated by the user. The equipment in
which the drive is mounted is connected directly to the drive with no electrically isolating shock mounts. If it is desired for the system
chassis to not be connected to the drive ground, the systems integrator or user must provide a nonconductive (electrically isolating)
method of mounting the drive in the host equipment.
Increased radiated emissions may result if designers do not provide the maximum surface area ground connection between system
ground and drive ground. This is the system designer's and integrator's responsibility.
Seagate 1200.2 SAS SSD Product Manual, Rev. A
Above unit
Under unit
Above unit
Under unit
K x X = F < 15lb = 67N
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