HP Compaq Presario,Presario R4000 Maintenance And Service Manual page 150

Removal and Replacement Procedures
2. Slide the tip of the processor release arm 1 to the right until it
clears the tab 2 on the processor socket.
3. Swing the arm 3 up and back as far as possible.
4. Remove the processor 4.
✎
The gold triangle 5 on the processor should be aligned in the
front left corner when you install the processor.
Removing the Processor
Reverse the above procedure to install the processor.
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