CMOS or BIOS Battery
* 1your clock starts running slowly
* when you boot (start) your computer it has a problem finding your hardware (no hard drive, no cd rom)
To change the battery you need the following tools:-
* a X-point screwdriver
* an anti-static strap
* a new battery (without it what are you changing)
** unplug all the cables from the back of the computer as you remove them make a note where they came from. (always rember where the plugs goes back)
* Make sure the power is off
* There are sharp edges and all so be carefull
* Do not remove unnecessary plugs and all-they will have big effect on the computer
* Do not damage anything inside the case
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