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clock losing time on laptop

by gbook55 / November 11, 2007 5:47 AM PST

My HP DV6113US running XP loses time on the start bar clock if it does not have either AC or a battery attached to the unit. When I say losing time I mean hours over just a day. If you leave the battery pack or AC attached, it keeps perfect time. Shouldn't the internal CMOS battery keep the correct time even if there is no other power source attached? I have at times put the laptop in the bag without a battery attached and left it for several days, usually in hibernate. Should this have caused the CMOS battery to deplete? The unit is less than a year old and still has a month of warranty. Would you suggest I send it in to HP, or is there something here that might be an easy fix without having to give up the computer for two or three weeks?

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CMOS battery
by BrianZachary / November 11, 2007 6:27 AM PST

Have you tried changing the CMOS battery?

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cmos battery
by gbook55 / November 12, 2007 12:41 AM PST
In reply to: CMOS battery

No, I have not tried to replace it. As I asked in the previous post, is it natural for this battery to wear out this quickly? Also, is it something that I should let HP deal with since it is still under warranty? It looks fairly easy to replace on my unit, but is it simply a matter of disconnecting the old one a reconnecting the new? Will this process affect anything else, such as the BIOS? Thanks for the reply!

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lets call HP
by v_2vinch / November 12, 2007 2:05 AM PST
In reply to: cmos battery

i would strongly suggest you contact HP because its still under warranty....well , to answer your question of whether it will affect bios, my answer is yes and no...

the safe bet would be to contact HP and let them take it over ...


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CMOS battery life
by mjd420nova / November 12, 2007 8:05 AM PST

I've seen this happen on a few units, whether from the unit being in the warehouse for a long period before being sold or a defective battery holder or the cell may have just become jarred loose. The sole purpose of that battery is to keep the clock running when the unit is shut down and to hold the BIOS settings. You may have one of those rare units that needs no changes to the BIOS to function properly so other than the clock being out of time you might not notice any other failures. The battery is not that easy to replace so it needs to get warranty service

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