Question about Sony VIAO P4 PCV-RS712 3.0GHz 512MB 200GB DVD RW DVD BRAND PC Desktop
Ya u hve to do this but i not prefer u do this at ur self u have to with service technision he will open ur laptop with care fully its good for u and ur laptop u what to do ur self do it your own risk
Posted on Mar 30, 2008
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Posted on Jan 02, 2017
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One of the most common methods to reset the BIOS password is to remove or discharge the battery on the computer's motherboard. If the power to the battery is lost or drained, the BIOS configuration will be reset to the factory state with no password. System settings made to the BIOS will also be lost.
Step 1 - Turn off the computer and ensure it has no external power (ie unplug the power cable. If it has a battery, remove it).
Step 2 - Open the computer's case or box.
Step 3 - Locate the computer's motherboard and look for the white silver button battery on the motherboard.
Step 4 - If the battery is not soldered to the motherboard, remove it carefully and wait for approximately 30 seconds.
Step 5 - Put the computer case back together and boot the computer.
Step 6 - If the "CMOS Checksum Error-Defaults Loaded" error message is displayed, the BIOS password has been reset.
In the event the CMOS battery is soldered to the computer's motherboard, you will want to seek a different method to reset the BIOS password on the computer.
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