This video shows how to remove and install the wireless card on a Precision 7865 Tower.
Before you begin, turn off the computer, disconnect all the attached peripherals, and remove any SD card installed in the SD card slot on your computer.
Ensure that you always use ESD protection when working inside the computer. To begin, insert the side-cover key and turn the key counter-clockwise to unlock the side cover.
Then push the release latch on the side cover and pull outwards to remove the side cover. Lay the computer on to its right side.
Now let’s remove the air shroud, hold the air shroud at the gripping points and pull it outwards to remove it from the computer.
Disconnect the PSU-VGA cables from the connectors on the PCIe holder and unroute the cables from the hook on the holder. Then, push the release latch and lift the holder vertically upwards to remove it from the computer.
To install the wireless card on the PCIe wireless riser-card, connect the antenna cables to the wireless card to the wireless card main connectors.
The cables must be connected to the respective connectors that is marked with triangle. Then, align the notch on the wireless card with the tab on the riser-card and slide the card at an angle into the riser-card.
Now, align the screw hole on the wireless-card bracket with the screw hole on the wireless card and the riser-card. Tighten the single screw to secure the bracket to the wireless card and the riser-card.
Now, open the PCIe latch and remove the PCIe filler from the chassis. Then, align and insert the riser-card into the PCIe slot on the chassis.
Connect the riser-card cable to the connector on system board. Then route the cable through the hook on the chassis and close the PCIe latch.
Note: We will demonstrate the installation process of PCIe holder, PSU-VGA cables, air shroud and side cover process once we show the Wireless card removal process.
Align and insert the external-antenna cables into the external-antenna cover. Now, align and tighten the bolts to secure the cable to the connector on the riser-card and push the external-antenna cover towards the chassis to secure the cable.
Now, tighten the single screw that secures the cover to the riser-card and chassis. The wireless card installation process is now complete.
To remove the wireless card, loosen the single screw that secures the external-antenna cover to the riser-card and the chassis. Now, pull the cover to remove it from the chassis.
And loosen the bolts that secure the cables to the riser-card. Now, unroute and disconnect the riser-card cable from the connector on the system board.
Then, open the PCIe latch and remove the riser-card from the PCIe slot. Remove the single screw that secures the wireless-card bracket to the wireless card and the riser-card.
Now, lift the bracket away from the riser-card and slide the wireless card at an angle to remove it from the riser-card. And then, disconnect the antenna cables from the connectors on the wireless card.
You have now successfully removed the wireless card. Now, insert the PCIe filler and close the PCIe latch. Align the PCIe holder and push it vertically down until it clicks in place.
Then, slide the latch to lock it. Route the PSU-VGA cables through the hook on the PCIe holder and connect the cables to the connectors on the holder.
Now let’s install the air shroud, hold the air shroud at the gripping points and push vertically down until it clicks in place. Close the side cover, align the tabs on the side cover with the slots on the chassis, then move it inwards until it clicks in place.
Insert the side-cover key into the key slot and turn it clockwise to lock the computer. You can now connect all the peripherals. Connect the power adapter and press the power button to power on the computer.
For more information or support about Precision 7865 Tower, visit Dell.com/Support.
