1

hard drive

2

slot verification number

 

 

 

 

NOTICE: To prevent damaging the hard drive, gently slide the drive into the drive bay. Excessive force could damage the hard drive.

7.Gently slide the drive into the bay until it clicks into place.

8.Replace any drives or readers that you removed.

9.Check all connectors to ensure that they are properly cabled and firmly seated.

10.Replace the computer cover. See Replacing the Computer Cover.

NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug it into the computer.

11.Connect your computer and devices to electrical outlets, and then turn them on.

12.If the drive that you installed is the primary drive, insert bootable media into your boot drive.

13.Enter system setup (see Entering System Setup) and update the appropriate Primary Drive option (0 or 2).

14.Exit system setup, and reboot the computer.

15.Partition and logically format your drive before you proceed to the next step.

For instructions, see the documentation that came with your operating system.

16.Test the hard drive by running the Dell Diagnostics. See Dell Diagnostics.

17.Install your operating system on the hard drive. For instructions, see the documentation that came with your operating system

Battery

Replacing the Battery

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years. If you have to repeatedly reset time and date information after turning on the computer, replace the battery.

CAUTION: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.

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Dell C521 specifications Replacing the Battery