Dell Inspiron M521R (5525, Mid 2012) - Manual (Page 61)

Processor | 61
Replacing the Processor
Procedure
NOTE: If you install a new processor, a new thermal cooling assembly including an
affixed thermal pad or a new thermal pad along with documentation to illustrate
proper installation is shipped.
1 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF
socket, then insert the processor module.
NOTE: The pin-1 corner of the processor module has a triangle that aligns with the
triangle on the pin-1 corner of the ZIF socket.
When the processor module is properly seated, all four corners are aligned at the
same height. If one or more corners of the module are higher than the others, the
module is not seated properly.
CAUTION: To avoid damage to the processor, hold the screwdriver perpendicular
to the processor when turning the cam screw.
2 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor
module to the system board.
Postrequisites
1 Replace the thermal-cooling assembly. See "Replacing the Thermal-Cooling
Assembly" on page 57.
2 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on
page 52.
3 Replace the palm rest. See "Replacing the Palm Rest" on page 31.
4 Replace the keyboard. See "Replacing the Keyboard" on page 16.
5 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on
page 26.
6 Follow the instructions from step 4 to step 6 in "Replacing the Hard Drive" on
page 23.
7 Replace the memory module(s). See "Replacing the Memory Module(s)" on
page 20.
8 Replace the base cover. See "Replacing the Base Cover" on page 18.
9 Replace the battery. See "Replacing the Battery" on page 13.
10 Follow the instructions in "After Working Inside Your Computer" on page 9.
book.book Page 61 Friday, September 7, 2012 10:14 AM