Every computer has a basic input/output system (BIOS) chip built into the motherboard. This is a small, black chip that stores data that allows your computer's hardware to communicate with the operating system. If the BIOS chip stops working, your computer's hardware will start behaving erratically. Since the BIOS chip is built into the motherboard, accessing the BIOS chip in your ThinkCentre computer means partially dismantling your computer.
- Skill level:
- Moderately Challenging
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Things you need
- Phillips screwdriver
- PLCC removal tool or flathead screwdriver
Shut down your computer. Unplug the power cable, and all external devices. Rotate the computer with the rear panel facing you, then lay the computer tower flat on its left side. Touch an unpainted metal surface before opening the computer. Do so periodically while working inside your computer to prevent electrical damage to the motherboard from a static discharge.
Remove the Phillips screws from the upper and lower left corners of the back panel. Press on the release button on the right-side access panel. Remove the side panel from the computer to reveal the motherboard.
Locate the black BIOS chip on the motherboard. The BIOS chip is a small, square chip with pin connectors on all four sides of the chip.
Use a PLCC chip removal tool to pry the bad chip from its motherboard socket. The PLCC ship resembles a large pair of tweezers. It has soft grips on the tips of the removal tool that allow you to remove the BIOS without damaging the chip or motherboard. It is possible to remove this chip with a flathead screwdriver. But this is not recommended, because you can damage the motherboard.
Align the pin connectors on the new BIOS chip with the pinholes inside the BIOS chip's motherboard socket. Place the chip inside the socket, and press down on the chip's surface to firmly connect the chip to the motherboard.
Replace the side access panel and its retaining screws. Place the computer vertically. Reconnect all cables and devices.
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