HP ProBook 640 G2 RAM Replacement
Daniel Garcia and 2 other contributors
Last updated on Dec 31, 2025
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Introduction
Go to step 1 ↓If you are having trouble booting your laptop, or you would just like to upgrade to more RAM, you may need to replace your RAM card.
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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To reassemble your device, follow these instructions in reverse order. Take your e-waste to an R2 or e-Stewards certified recycler.
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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
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