Dell Precision 490 Desktop User's Guide - Page 36

alignment bar

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1 card retention door 2 release tab 5. If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 7. 1 release tab 2 card retention door 3 alignment bar alignment guide 4 NOTE: For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card. 5 filler bracket NOTICE: Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged. 6. If you are replacing a card that is already installed in the computer, remove the card: a. If necessary, disconnect any cables connected to the card. b. If the card is full-length, press the release tab on the end of the alignment guides on the fan case. c. If the connector has a release tab, press the release tab as you grasp the card by its top corners, and ease it out of its connector.

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5.
If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with
step 7
.
6.
If you are replacing a card that is already installed in the computer, remove the card:
a.
If necessary, disconnect any cables connected to the card.
b.
If the card is full-length, press the release tab on the end of the alignment guides on the fan case.
c.
If the connector has a release tab, press the release tab as you grasp the card by its top corners, and ease it out of its connector.
1
card retention door
2
release tab
1
release tab
2
card retention door
3
alignment bar
4
alignment guide
NOTE:
For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card.
5
filler bracket
NOTICE:
Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged.