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CARE OF YOUR FUJITSU HARD DISK DRIVE (HDD) 

Careful handling and installation of your HDD is paramount to the longevity of the unit.  The internal mechanism of the HDD can be 
seriously damaged if the HDD is subjected to forces outside the environmental specifications.  When transporting the HDD, always use the 
original packaging in which the HDD was delivered to you, and avoid exposing the HDD to extreme changes in temperature to minimize the 
risk of condensation. 

Handling 

1. Never

 drop the unit.  Handle it with care. 

2. Never

 move the HDD while the disks are spinning.  Note that the disks spin when the HDD is powered on and also immediately after 

power off.  Refer to the Start/Stop specification for your HDD. 

3. Always

 turn off the power before connecting or disconnecting the interface cable.  The same applies to changing any of the switches or 

terminal settings except Write protect switch on NP model drives. 

4. Never

 place the HDD in the vicinity of equipment giving off strong magnetic fields, such as CRT monitors, televisions, or loudspeakers. 

5. Never

 use any cleaning agents or liquids on the HDD. 

6. Always

 use an antistatic mat and wrist strap when handling the HDD.  Hold the HDD by the base casting and never touch the components 

on printed circuit board assembly. 

7. Never

 remove any labels from the HDD or deface them in any way. 

8. Never

 open the HDD for any reason.  Doing so will void any warranties. 

9. Always

 pay close attention to the mounting specifications such as those for sway space and cooling.  If the temperature difference 

between the storage location and installation locations exceeds 10°C, for temperature acclimation purposes, leave the HDD in the new 
location for at least two hours before turning it on.  This minimizes any risk of condensation forming on the HDD. 

The HDD needs NO preventative or periodic maintenance during its service life if properly used in the appropriate environment. 

INSTALLATION 

1. ORIENTATION–

The HDD can be installed flat on any of its six sides.  Inclination from vertical or horizontal plane should not exceed 

5

°

2. MOUNTING SCREW INSTALLATION–

When the mounting screw holes on the side of the HDD are used, be sure to use the two pairs 

of outer holes.  Do not use the center hole in conjunction with only one of the outer holes.  The screws must not penetrate the HDD by more 
than 5.0 millimeters.  Impact caused by the electric screwdriver must be within the HDD specifications. 

3. COOLING–

Allow space above and below the HDD to provide an adequate air flow.  Fan cooling is recommended.  The HDD 

temperature measured at center of top cover (label side) should never exceed 60°C.  See Table 1. 

Table 1.  Reference value of airflow 

Environmental temperature 

Required velocity of airflow 

30

°

C

 

> 0.3m/s

 

35

°

C

 

> 0.6 m/s

 

40°

C

 

> 0.9 m/s

 

45°

C

 

> 1.5 m/s 

4. TERMINATION–

A terminator should be installed externally at both ends of the SCSI bus. 

5. TERMINATOR POWER–

Terminator power must be supplied to terminator for correct operation.  This can be supplied from either the 

HDD, except for NC model or the SCSI bus.  If only NC models are connected to the SCCI bus, terminator power should be supplied 
externally. 

6. CONNECTING–

To avoid potential damage to the HDD, make sure that connector type and orientation is correct. 

 

CAUTION:

 

Your warranty may be voided if the connector is damaged as a result of incorrect insertion. 

 

MBA3300NC, MBA3300NP, MBA3147NC, MBA3147NP, 
MBA3073NC, MBA3073NP

 

HARD DISK DRIVES INSTALLATION GUIDE 

 

FUJITSU LIMITED 

Storage Products Group 

4-1-1 Kamikodanaka, Nakahara-ku, Kawasaki 211-8588, Kanagawa-ken, Japan 

Copyright © 2007 FUJITSU LIMITED 

 

C141-E271-01EN

http://www.fujitsu.com/

Undermentioned information is effective only in EU for traceability of the EMC Directive  
Manufacturer:  
Fujitsu Limited  
4-1-1 Kamikodanaka, Nakahara-ku, Kawasaki 211-8588, Kanagawa-ken, Japan 
Authorized representative importer / distributor in EU: 
Fujitsu Europe Limited 
Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE, United Kingdom

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