Dell Vostro 220 - Vostro 220 Slim Desktop Computer Manuel d'entretien - Page 35
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3 Enlarged hole for cable
4 Switch slot
5 Chassis intrusion switch
CAUTION: Before you remove the computer cover, see
To remove the chassis intrusion switch and install a replacement, perform the following steps:
Disconnect the chassis intrusion switch cable from the control panel (see Figure
1.
Note the routing of the chassis intrusion cable as you remove the cable from the chassis. The cable is routed through an enlarged hole in the
chassis and through a hole in the disk-drive cage door. The chassis intrusion switch is mounted on the left front of the chassis (see
Figure 22).
2. Slide the chassis intrusion switch out of its slot on the chassis and carefully remove the switch and its attached cable from the chassis.
3. Install the replacement chassis intrusion switch and cable.
4. Replace the computer cover. Then reconnect your computer and peripherals to their power sources, and turn them on.
NOTE: After you remove and replace the cover, the chassis intrusion detector will cause the following message to be displayed at
the next system start-up:
ALERT! Cover was previously removed.
5. To reset the chassis intrusion detector, enter System Setup, select System Security, and reset Chassis Intrusion to Enabled or
Enabled-Silent (see your User's Guide for instructions).
System Power Supply
System Power Supply Rotation
To access some components on the system board, you may have to rotate the system power supply out of the way. To rotate the power supply,
perform the following steps.
CAUTION: Before you remove the computer cover, see
1.
Remove the computer
cover.
2. Disconnect the AC power cable from the AC power receptacle on the back of the power supply (see
Figure 23. System Power Supply Rotation
3. Free the power supply by pressing the securing tab labeled "RELEASE - >," and rotating it upward until it locks in its extended position.
System Power Supply Removal
To remove the system power supply, perform the following steps:
"Precautionary
Measures."
21).
"Precautionary
Measures."
1 Power supply
2 Securing tab
3 Release latch
4 AC power cable
Figure
23).