HP ProBook 640 G2 Fan Replacement
Daniel Garcia and 2 other contributors
Last updated on Dec 31, 2025
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Introduction
Go to step 1 ↓If your laptop won't boot or is overheating, you may want to clean or replace your fan, which is located at one corner of the motherboard, next to the heat sink assembly and exhaust vent.
Caution - make sure your laptop is unplugged and powered off before beginning.
What you need
Tools
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T9 Torx Screwdriver$9.99
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Spudger4.9
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Flip the laptop so the bottom is facing up.
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Use a JIS J1 screwdriver to remove eight 6 mm screws from the bottom of the laptop case.
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Use a Torx T9 screwdriver to remove the single 6 mm screw.
Ask FixBot
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Use a plastic opening tool to carefully pry the bottom case.
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Insert the end of the opening tool into the seam between the bottom and top case and slide it around the perimeter to release the clips.
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Remove the bottom cover.
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Use a JIS J1 screwdriver to remove the seven 6 mm screws securing the battery.
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Lift the battery from the bottom edge and slide it out of the socket on the motherboard.
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Loosen the four JIS J1 captive screws on the hard drive tray.
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Use the black tab on the hard drive tray and pull it toward the bottom of the laptop to remove the drive.
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Use the JIS J1 screwdriver to remove the four 3.0 mm screws on the sides of the hard drive tray—two from each side.
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Remove the old hard drive from the tray.
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Slide a thin spudger or angled tweezers under the metal neck of the connector (as close to the head as possible) and lift straight up from the Wireless WLAN card.
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Pull straight up on the black tab to disconnect the display cable.
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Use a JIS J1 screwdriver to remove the two 5 mm silver screws securing the hinge covers.
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Turn the laptop over and open the top cover.
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Use an opening tool to gently pry the plastic hinge covers off both hinges.
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Lift the keyboard and pull it gently toward you to remove it from the laptop.
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Turn the keyboard assembly over so the motherboard is facing up.
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Gently pull the metal retaining clips away from the RAM module.
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Pull the RAM card out of its slot and replace with a new one.
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Use the point of a spudger to push on alternating sides of the fan connector to "walk" it out of its socket.
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If that doesn't work, use a pair of tweezers to firmly grip the sides of the connector and pull straight away from the socket. Hold the tweezers closer to the connector to get a better grip.
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Use a JIS J1 screwdriver to loosen the six captive screws securing the fan and heat sink assembly.
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To reassemble your device, follow these instructions in reverse order. Take your e-waste to an R2 or e-Stewards certified recycler.
Team
University of North Texas, Team 1-1, Kilpatrick Fall 2025 Member of University of North Texas, Team 1-1, Kilpatrick Fall 2025
UNT-KILPATRICK-F25S1G1
4 Members
48 Guides authored
