Follow the procedure in Before working inside your computer.
Save and close all open files and exit all open applications.
Shut down your computer. For Windows operating system, click Start > Power button Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions.
Disconnect your computer and all attached devices from their electrical outlets.
Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
Remove any media card and optical disc from your computer, if applicable.
Removing the CPU:
Remove the:
side cover
air shroud
processor heat sink module
To remove the central processing unit (CPU):
Hold the processor heat sink module upside down.
Pry the two processor carrier latchs [1] from the processor heat sink module.
Press the other two carrier latchs [2] of the processor carrier and remove it from the slot in the heat sink.
Use a torx screwdriver to pry the CPU off the processor heat sink module. Place the blade between the clip and the CPU.
NOTE: A flatbed screwdriver or plastic scribe can also be used as well.
Unlatch the CPU from the two keying latches on the processor carrier and gently lift the CPU.
NOTE: Avoid touching the CPU contacts with your fingers.
Installing the CPU:
Orient the processor carrier so that the smooth (logo-less) side of the carrier is facing up and the triangle mark on the carrier is on the bottom left hand corner.
Align the processor with the carrier so that the triangle mark on the top side of the processor is aligned with the triangle mark on the carrier.
Flip both the processor and the carrier over so that the pins on the processor and the logo side of the carrier are facing up.
Carefully insert the processor into the carrier so that it is secured by the hooks on the upper and lower side of the carrier.
NOTE: After inserting the processor into the carrier, check to see whether the small triangle on the processor aligns with the triangle on the carrier. If they are not aligned repeat the preceding steps.
Align the processor and carrier assembly with the heat sink so that the triangle marks on the processor and carrier are aligned with the triangle mark on the top side of the heat sink (captive screw #2).
Insert the processor and carrier assembly into the heat sink so that the hooks on the four corners of the carrier are locked into the openings of heat sink.
NOTE: After inserting the processor and carrier assembly into the heat sink, double check to see whether the triangle on the carrier is located on the bottom right corner of the heat sink (when the bottom side of the heat sink is facing up).
Install the processor and heat sink onto the central processing unit (CPU) socket and then secure the four captive screws on the heat sink to the system board in sequential order (1 > 2 > 3 > 4).
Install the:
heat sink
air shroud
side cover
Follow the procedure in After working inside your computer
Replace all screws and ensure that no stray screws remain inside your computer.
Connect any external devices, peripherals, or cables you removed before working on your computer.
Replace any media cards, discs, or any other parts that you removed before working on your computer.
Connect your computer and all attached devices to their electrical outlets.
Turn on your computer.
