How to replace CMOS battery on Satellite A30-504?

i have big problems with my satellite A30-504...it does'nt see the HDD on boot, my only solution so far was to press the power button for many times.
My HDD is ok so i think the problem is with the cmos battery but i dont know how to find out what type it is and how to replace it.
(ps. sorry my english, i'm not an english speaker)

Hi Adrian
CMOS battery is always placed an awkward position and to exchange the battery the unit must be disassembled. If you didnt done this before please dont do this alone. A small mistake and you can damage plastic cover of the unit.
I recommend you to contact service and let them do this for you. It costs a little bit but you will be sure it will be done on professional way. When the unit is disassembled it can also be cleaned from the dust.
Back to HDD: how you know HDD is not defective?

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How to replace CMOS battery on Satellite A30-504?

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