Question about Acer Aspire 5720 6497 Laptop

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Machine will not start,battery is dead but machine usually runs from the mains,machine starts but will not get to bios then switches off,no beeps are detected.

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Posted on Jan 02, 2017

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SOURCE: machine will not start up,battery is not working


Machine doesnt give beep, if the battery completely fails, you system wont start in battery and will continue to run in the main, incidcating that the battery is failing...

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Posted on Nov 15, 2009


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Laptop is probably 6yrs old, stays plugged in at all times since it has no battery, I unplugged it to move it for printing now it won't start up,

Coin Cell Battery Probably Dead (usually In Memory Compartment) Bios Memory Dead Renew Coin Cell Battery--Boot To Bios And Reset--Then Save Changes.

Mar 23, 2015 | Computers & Internet

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Acer aspire m3710 one long beeping

Must be a few years old? Sounds like the on-board battery. Remove the side and locate it, change it and the machine should start. It's usually a 2032 battery.
Once changed, you may have to go into BIOS and reset the time. Usually when the computer starts from the very beginning press delete and this should bring up the BIOS screen, then change the date and time, save settings and it should boot up with no problems. A friend had exactly the same problem with a different machine.

Jun 29, 2014 | Acer Aspire M3710

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Beeping Sound

How old is your laptop? When I used to work over computers, laptops had a backup battery as well as a main battery and AC Adapter - could your backup battery be toast?

Jan 27, 2014 | ASUS Eee PC 1015Cx

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Black screen please help

the beeps are called BIOS BEEP codes. and is telling you what is wrong.
does run with no battery removed
do the BIOS screens work they MUST at all time. power on ,hotkeyed.
is the fan running
its old right,
like an old car that will not start do you buy a new car?
or buy a new battery? hummmmmmmm
ever heard of a tech>/? those folks that diagnosis things?

tried taking battery out, but failed to say it would not run only on the power pack. take it out and leave it out for now... be wise.

so the HP logo works every-time you never said that yes./no.??
if yes the BIOS is ok. see? means the brain works the Ram is not dead and if you had pressed the BIOS hot key F1,F1, Esc, F10
what ever it is , it tells you what at boot in text. if you look there.
if it stalls with good bios that means.
bad HDD or bad OS.
IF YOU Press that, at power on ,it goes to restore mode.
(means reload windows)

oops HP retired this PC

that means in English clear, its NOT SUPPORTED NOW.
no books no software no updates no NUTTN
No anything, !

now you know why mom dump it.?
LOL !!!!

its a dead fish.
or FORD, found on road dead. LT.

why not report the beep codes
clear and accurately,??????????????????????

run the LT with no battery and level it like that till cured.

then, replace the COIN cell, no laptop this old has good 3vdc coin cell, impossible I bet.
if the cell dies, as all do in 5 -10 years.
the PC beeps with CMOS clock, NVRAM errors.
the battery size of a coin, runs the Real time clock and the
CMOS memory bank for the BIOS settings.
if the coin goes dead BIOS GOES NUTS ANT TIME/DATE goes NUTS.
if the beep codes say the HDD dont boot that usually means HDD is dead.
the trouble with beep codes are that there are many BIOS used
and many codes used. some are impossible to find.
beeps are now gone we flash LED codes now.

this is DT coin, LT is warped in plastic and 2 wires. see the COIN?

1 long , 1 short, ? is COIN dead.

note the black hole OF BIOS code HELL here, its a bad place to be.
for sure.
one other test is go to BIOS page.
see that time/date, year, settings. if way off the COIN is dead.
learn to that a 1/2 dead coin can work now, then file and 1 hour later work, that is how batteries fail. they go MARGINAL sometimes.

Apr 03, 2017 | Compaq Presario 1800T Notebook

1 Answer

Machine will not start up,battery is not working but machine usually runs from the mains,machine starts up but does not make it to the bios,no beeps are detected.


Machine doesnt give beep, if the battery completely fails, you system wont start in battery and will continue to run in the main, incidcating that the battery is failing...

PLease rate this solution

Nov 15, 2009 | Acer Aspire 5720-6661 Notebook PC

3 Answers

PC start directly

Explain what you mean when you say 'when i open the pc from main switch'.
Also, something you should try is updating the CMOS, or in other words flashing the BIOS firmware. Go to your motherboards manufacturers website and see if there are any BIOS updates for it.

Mar 03, 2009 | Intel PENTIUM-4 865GV CHIP MOTHER BOARD...

1 Answer

Beeping then shuts down.

Hi Speedport!

This isn't something as simple as a dead / broken / malfuctioning battery is it ? Try removing your battery, plugging the laptop into the mains and running it idle. The Bios update you found may have been a coincedence...


Nov 19, 2008 | Toshiba Satellite A205-S4617 Notebook

1 Answer

Packard Bell Easynote L4 turns off after Bios

I would try a BIOS update first. Go to the manufacturer website and find the BIOS update for your model. Also, you mentioned replacing the memory. Are you positive it is the correct memory? Were you having the problem before you replaced the memory? If you have the wrong memory in a computer it will give a "beep code" and won't boot up.

Nov 05, 2008 | Packard Bell Easy One Silver 2101 Notebook

1 Answer

Post post beeps

It appears that the Bios can't remember the settings and loads default settings each time it starts. Please replace the battery (usually CR2032 battery) on your motherboard with a fresh battery of same type and then start your machine.

Sep 09, 2008 | Intel D875PBZ Motherboard

3 Answers

Alert system battery voltage low (Beep Beep)

Three possible:

1 does new battery test good?

2 is battery inserted properly (backwards)?

3 do U clean the battery holder with a pencil eraser?

May 12, 2008 | Computers & Internet

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