Question about Toshiba Satellite M45-S331 Notebook
If you've encounter with this issue, this issue the same with your BIOS password you can easy access the BIOS by reset the CMOS battery and jamper.
The checksum error refer in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.
On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS. If you have the motherboard documentation, you will know where that jumper is.
If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.
Posted on Dec 10, 2009
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Posted on Jan 02, 2017
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