crwdns2915892:0crwdne2915892:0
Use this guide to replace the heat sink in your HP EliteBook 845 G7 laptop, or to reapply thermal paste.
If your replacement heat sink doesn't come with thermal paste pre-applied, you'll need new thermal paste.
Still under warranty? Contact HP to learn your warranty status, receive a repair under warranty if eligible, or for further warranty information.
crwdns2942213:0crwdne2942213:0
-
crwdns2931653:01crwdne2931653:0 Before you begin
crwdns2944588:01crwdnd2944588:0crwdnd2944588:0crwdne2944588:0
-
Save your work, fully shut down your laptop, and unplug all cables.
-
-
-
Use a Phillips screwdriver to fully loosen (but not remove) the five captive screws securing the bottom cover.
-
-
-
Position your laptop so the rear edge (with the screen hinge) is closest to you.
-
Insert the flat end of a spudger between the rear edge of the bottom cover and the frame, near the middle screw and ELITEBOOK text.
-
Use your spudger to pry up the cover to release the clip securing it.
-
Leave the spudger inserted under the bottom cover for the next step.
-
-
-
Slide your spudger along the rear edge toward one of the corners to release the rear edge clips.
-
Rotate your spudger around the corner and up the edge to release the clips securing the short edge of the cover.
-
-
-
-
Reinsert the flat end of a spudger near the ELITEBOOK text.
-
Repeat the previous step for the other side of the cover to release the remaining clips.
-
-
-
Lift and remove the bottom cover.
-
-
crwdns2931653:07crwdne2931653:0 Disconnect the battery
crwdns2944588:07crwdnd2944588:0crwdnd2944588:0crwdne2944588:0
-
Position your laptop so the front edge (opposite the screen hinges) is closest to you.
-
Use the point of a spudger or your fingernail to push on alternating sides of the battery's sliding connector to walk it completely out of its socket.
-
-
-
Use a Phillips screwdriver to fully loosen (not remove) the four captive screws securing the heat sink. Loosen the screws in descending order based on the numbers stamped next to each screw.
-
-
-
Use the flat end of a spudger to pry up the left edge of the heat sink.
-
-
-
Lift and remove the heat sink.
-
Follow this guide to clean the CPU and apply new thermal paste.
-
If you're reusing the heat sink, make sure to clean it as well.
-
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler. Depending on your region, used HP devices and parts can be returned for reuse or recycling through the HP Planet Partners program.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler. Depending on your region, used HP devices and parts can be returned for reuse or recycling through the HP Planet Partners program.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
