Dell Vostro 3550 (Early 2011) - Manual (Page 24)

6. Remove the screws that secure the hard-drive bracket to the hard drive.
Installing The Hard Drive
1. Replace the screws to secure the hard-drive bracket to the hard drive.
2. Place the hard drive on the chassis.
3. Replace the screws to secure the hard drive to the system.
4. Install the access panel .
5. Install the battery .
6. Follow the procedures in After Working Inside Your Computer .
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