Dell Precision 490 Desktop User's Guide - Page 48
Rotating the Hard, Drive Carrier Back into the Computer, Replacing the Computer Cover, Back
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1 tab 5 front alignment notch 2 processor socket 6 socket and processor pin-1 indicator 3 center cover latch 7 rear alignment notch 4 socket release lever NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor. 10. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 11. When the processor is fully seated in the socket, close the processor cover. Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket. 12. Pivot the socket release lever back toward the socket and snap it into place to secure the processor. NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you replace the processor. If you installed a processor replacement kit from Dell, return the original heat-sink assembly and processor to Dell in the same package in which your replacement kit was sent. 13. Install the heat-sink assembly: a. Place the heat-sink assembly back onto the heat-sink assembly bracket. b. Rotate the heat-sink assembly down towards the computer base and tighten the four capture screws. NOTICE: Ensure that the heat-sink assembly is correctly seated and secure. 1 heat-sink assembly 2 captive screw housing (4) 14. Close the processor access door. 15. Ensure that all connectors are properly cabled and firmly seated. 16. Rotate the hard-drive carrier back into place (see Rotating the Hard-Drive Carrier Back into the Computer). 17. 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. 18. Connect the computer and devices to electrical outlets, and turn them on. Back to Contents Page