Dell T105 Systems owner manual Opening the System, Closing the System

optional diskette drive. A controller expansion card is required for SAS hard drives. Power is supplied to the system board and internal peripherals through a single nonredundant power supply.

Opening the System

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

2Press the power button to ground the system board.

3Lay the system on its side as shown in Figure 3-2.

4Open the system by sliding the cover release tab toward the rear of the system and lifting the cover off. See Figure 3-2.

Closing the System

1Ensure that all internal cables are connected and folded out of the way.

2Ensure that no tools or extra parts are left inside the system.

3Reinstall the system cover:

a Insert the bottom edge of the cover into the bottom of the system chassis. See Figure 3-2.

b Press down on the cover until the cover release tab snaps into place.

4Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.

After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next system start-up:

Alert! Cover was previously opened.

Installing System Components

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