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How do I erase the BIOS password on an Acer 5315 laptop please?

Posted by Edwina McKinney-Tate on

  • Anonymous Dec 12, 2021

    WHY NOT ASK ACER.COM THAT , ASk THEM..
    true name is
    acer aspire notebook 5315 (2008 made)
    a came new with VISA
    if you hit enter 3 times does it give hint code?????????????????????
    no history told or now the pw got set
    1: forgut it.THE PW.? LOST?
    2: kids messing about.
    3: coin cell dead and now bios lies. sure.
    4: buy it used and dead
    there is a story but was not told
    make it 10x more easy and tell the story first. we are blind here. see?


    WE can not guess how this happened and matters for sure, big time.
    the coin cell that old is dead. and lies
    BIOS in CHAOS mode, lies to you.
    a new battery fixes that.
    and many PC will ask for PW that never existed ever. until you replace the battery with a new one.


    and on this PC it is PITA a real pain.'
    to find it and replace it , it is soldered down is is ML12201 coin chargeable type.
    not the normal CR2032

    if serious , answer Q1 TO 4 ABOVE

    ALSO ON THIS PC IN YOUR MANUAL IT TELLS
    YOU TO CHARGE ALL BATTERIES BEFORE FIRST USE. (AND IF STORED FOR MONTHS)

    AND REMOVE THE HUGE BATTERY NOW SHORTED
    AND RUN ON AC POWER ONLY AND LET IT CHARGE THE coin ml220 BATTERY
    THE BATTERY ML-1220- HAS 5 YEAR LIFE.
    SAYS ALL 3 MAKERS OF IT.
    see all coins here, every type used.
    non last a decade./

    https://www.pcdied.com/cmos.html

    2008 PC 14 year old

    the if PC asked PW and you never set any BIOS PW ever say so first
    and end the labor of helpers posting endless wrong answers.

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1 Answer

Hi Seven

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  • 4 Answers

Temporarily short the legs of the cmos backup battery with a screwdriver while powering up the machine. This will let you reset the bios settings and set a new password.

Posted on Dec 01, 2021

  • 3 more comments 
  • Anonymous Dec 09, 2021

    no that is wrong do not short things, as intel.com told you clear as day, if you short the south bridge RTC pins it blows up the south bridge to H3LL. stop shorting things ! learn to do this correctly.

    1: remove the AC power pack both end.
    2: remove huge battery in laptop
    3: remove the coin cell, battery some are soldered down on this pig (this one is soldered)
    4; let PC sit for 1hour resting (called discharging all CAPS inside)
    even push power button on now dead PC for 10seconds, say 3 times to help dischage them faster.
    6: ok coin cell back. in to PC,
    7: the ML1220 battery for coin cell must be charged now, or replaced new and changed, CR2032 batteries do not. this PC sadly uses the ML1220, and must be replaced and recharged to work.

    see the battery below in blue, and is soldered down
    no battery like this is good now, they go bad at 5years old as panasonic datasheet tells you, life span.
    and if it goes dead it can cause the BIOS in your PC to lie to you (it will) and ask for non existent PW.

    this is your MOBO, for sure. see that battery in blue there>?

  • Anonymous Dec 09, 2021

    never short things near that battery ever, the intel data sheet on his south bridge tell you
    do not short this wire or the south bridge blows up, (damage word)
    stop telling folks to short things, ok, not have them wreck a good PC.

    2007 PC, now 14 years old no battery there is good that old ever.
    and when dead PCs can lie to you BIOS does even tells you a Pw IS SET AND IS NOT.
    learn how BIOS works and know that.

    op go to acer.com join their forum and ask or call acer for support
    if you want to try safe acts (not shorting stiff willly niillly like a goon
    put in a new RTC cmos coin cell battery.
    this battery is not a real cr2032 coin cell it is:
    1: soldered down
    2: is ML1220 Panasonic or VARTA battery
    3: is recharge type only
    4: has 5 year life span says both makers, of battery (all do )
    5: is bad and can never be ignored.
    6:the manual told you to put the PC on charge overnight so both batteries charge this one and the huge one.
    the huge one is no good either 14 years old,
    DONT listen to seven and his crazy shorting out things bull.
    never short things you do not understand in this electronics or electrical world, do not listen to that tripe.

    but do replace the now bad ML1220 battery or there is no hope ever, Pw OR NO PW, NO HOPE
    IT CAN NOT BE IGNORED
    HERE IT IS.

  • Larry Ng
    Larry Ng Dec 11, 2021

    THIS IS IT. FOR SURE AND IS BAD, IF LUCKY AFTER REMOVING IT AND REPLACING IT NO MORE PW.
    BIOS LIES TO YOU WHEN THIS BATTERY IS BAD, 128 LIES IN FACT. CAN HAPPEN 128 BIT NVRAM.

  • Anonymous Dec 11, 2021

    NICE PHOTO JUST FOR YOU, SEE THOSE 2 BATTERY LEADS, ML1220 IT IS, AND BAD,
    never ever short any battery !
    never ever short the south bridge pin
    that is this coin cell connection or the chip will be damaged ! (intel.com told that)A doomed event, an daredevil acts.

    the battery is no good now, so messing/playing with it is frankly silly.

    we replace it with new, and charge it for 20 hours as the maker said to do.
    then reset bios inside bios page 1.
    "factory defaults"
    then set time and date.
    then set boot order to hdd0 first
    the hit save in bios and exit.
    and now cold boot the PC< and now you
    see that HDD is bad or infected, or both.
    no HDD this old works.
    and XP is a virus magnet as is Vista.


    the maker of the battery states
    5 year life span clear as day
    and huge pain to reach it find it and replace it .

    spec on battery is here,
    unlike 99% of all other PCs
    https://www.fdk.com/battery/lithium_e/da...


    all 3 makers BAT say the same, even Panasonic. and Varta

    most folks wise retire the as
    shop labor to do all this is 5 times value of pC, or 10 times, PC is $5 value.
    0 if bad, and is bad. (this OLD)
    econ 101.

  • Anonymous Jan 13, 2022

    learn to google(or duckduckgo)
    https://duckduckgo.com/?q=acer+aspire+no...

    hint you are not the first person on earth with battery bad 5 years old
    nor PC locked.

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