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POST" is short for "power-on self-test," a diagnostic test that a computer system performs every time it powers up. It checks the system hardware devices such as processors, interrupts, video and memory. A POST failure typically means that there is something wrong with one of the PC's hardware components. With memory, there are two types of failures: soft and hard. While soft memory errors are solved by restarting the system, hard memory errors usually mean that there is something wrong with one of the memory modules itself. The only way to solve this problem is to check each memory module until you find the one that's the problem.
Instructions
1. Power down the computer.
2. Unplug the power supply to prevent any power surges and to prevent the PC from starting accidentally.
3. Open up the computer case. Remove the screws on the back of the computer to remove the side panel.
4. Locate the memory slots. Typically, the memory slots are located center-right of the computer.
5. Remove one of the memory modules. Unclip the memory module closet to the left by placing your thumbs on both ends and pressing the snaps down until the memory module pops up. Carefully, take out the module and place it in an antistatic bag. Close the computer case and restart the computer.
6. Allow BIOS to run and check the POST. If the POST initialization process runs successfully, then the problem was the memory module that was recently removed. If the problem continues, then remove another memory module until you discover which one or more is a bad.
7. Replace the bad memory module with a good one and restart your computer.
Tags: memory module, computer case, memory errors, memory module until, memory modules, memory slots, module until