Batery on mainboard

  • Thread starter Thread starter vfcara
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vfcara

Hello!
1) Soory for my english.
2) Is it possible to PC not boot if batery on mainboard is empty?

Thanks
 
Mike said:
Most motherboards will boot with default settings if the battery is dead.
Click to expand...
In my case PC will not boot. I have to 5-10 time press power button,
then will boot . After that I shut it down, and must wait 10-15 min to
power im again (again with 5-10 press). If I dont wait, I cannot boot
him. I try new power supply - same, new power button - same. I notice
that clock is always wrong because batery (I think so). So I'm
interested could it be the batery guilty for booting.
 
vfcara said:
In my case PC will not boot. I have to 5-10 time press power button,
then will boot . After that I shut it down, and must wait 10-15 min to
power im again (again with 5-10 press). If I dont wait, I cannot boot
him. I try new power supply - same, new power button - same. I notice
that clock is always wrong because batery (I think so). So I'm
interested could it be the batery guilty for booting.
Click to expand...

It is possible, though rare. Batteries are cheap, you may want to
replace anyway.

Another thought is you have bad capacitors. They look like tiny soda
cans. Fi any are bulging or leaking, even a little, they're bad.
 
It is possible, though rare. Batteries are cheap, you may want to
replace anyway.
Click to expand...
I had another PC on witch, I'm sure, batery is empty. On that PC
sometimes happens that ting with starting up (5-10 times pressing start
button). At first I thought problem is start button, but now I'm not so
sure. I'm hoping that problem is in batery, it is match cheaper :)
Another thought is you have bad capacitors. They look like tiny soda
cans. Fi any are bulging or leaking, even a little, they're bad.
Click to expand...
What can I do in that case, replace motherboard?

Thanks
 
vfcara said:
I had another PC on witch, I'm sure, batery is empty. On that PC
sometimes happens that ting with starting up (5-10 times pressing start
button). At first I thought problem is start button, but now I'm not so
sure. I'm hoping that problem is in batery, it is match cheaper :)
What can I do in that case, replace motherboard?
Click to expand...


Usually. Though it is also possible to desolder and replace them.
 
Usually. Though it is also possible to desolder and replace them.
Click to expand...
I had this problem about 2 years ago - computer reluctant to start up,
no video, no beep codes, no POST - and changing the battery fixed it.
The battery was not completely flat (measured about 2 volts). Bad news
is that now, 2 years on, it has started doing the same again and this
time the battery is fine. I am at present trying to find an answer
through another forum and am also being told the same as you, to look
for bad capacitors particularly around the area of the processor, but
mine all look fine.
 
Mij said:
I had this problem about 2 years ago - computer reluctant to start up,
no video, no beep codes, no POST - and changing the battery fixed it.
The battery was not completely flat (measured about 2 volts). Bad news
is that now, 2 years on, it has started doing the same again and this
time the battery is fine. I am at present trying to find an answer
through another forum and am also being told the same as you, to look
for bad capacitors particularly around the area of the processor, but
mine all look fine.
Click to expand...

Well.... try changing the battery anyway. Can't hurt, and batteries are
cheap.
 
I had this problem about 2 years ago - computer reluctant to start up,
no video, no beep codes, no POST - and changing the battery fixed it.
Click to expand...

Looks like it didnt, it was just a coincidence.
The battery was not completely flat (measured about 2 volts). Bad news is that now, 2 years on, it
has started doing the same again and this time the battery is fine. I am at present trying to find
an answer through another forum and am also being told the same as you, to look for bad capacitors
particularly around the area of the processor, but mine all look fine.
Click to expand...

It isnt the only fault with a motherboard that can produce those
symptoms. The other obvious possibility is a dry joint or cracked
trace. And those can be affected by changing the battery, just
the mechanical operation of changing the battery may well be
enough to make the problem go away for a while.

And not all bad caps actually look bad too.
 
Well.... try changing the battery anyway. Can't hurt, and batteries are
cheap.
Click to expand...
I did change the battery, and measured the one I took out (3.3 volts). I
changed it quickly, so as not to lose the BIOS settings and did not
check or clean the contacts. I probably should have done because this
does not behave like an intermittent fault such as a dry joint. It
consistently fails to start on the first power up, but (at present)
always starts on the second or third attempt as long as I turn off by
holding the power button for 4 seconds and then press for on again.
Switching the external supply off and on is less effective.
 
I did change the battery, and measured the one I took out (3.3
volts). I changed it quickly, so as not to lose the BIOS settings and
did not check or clean the contacts. I probably should have done
because this does not behave like an intermittent fault such as a dry joint.
Click to expand...

Yes it does.
It consistently fails to start on the first power up, but (at present) always starts on the second
or third attempt as long as I turn off by holding the power button for 4 seconds and then press
for on again. Switching the external supply off and on is less effective.
Click to expand...

You can get that effect with a dry joint/cracked trace, essentially
because the first start is a cold start and things warm up with the
system powered up for a bit, so the bad joint isnt so bad as when cold.
 
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