Symptoms of a bad bios/motherboard battery?
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Thread: Symptoms of a bad bios/motherboard battery?

  1. #1
    Join Date
    Jun 2000
    Vancouver, B.C., Canada

    Symptoms of a bad bios/motherboard battery?

    Old Core2 Duo (or just Core Duo?) laptop, Acer Travelmate 4230 with a fresh Linux Mint Cinnamon install. Time on the desktop keeps changing, and it seems to be having issues when it resumes from hibernation, sitting locked for periods of time, sometimes leading to me forcing shutdown by holding the power button down and then rebooting. I'm inclined now t think this is not due to the OS but to a failed motherboard battery. The laptop's main battery is still useful, even though I always have it on the psu.

    Do the slow resume and lockup sound like what could be expected from an expired bios battery?

    Not expecting an answer from Gilles -- I doubt you've kept using a laptop that old.

  2. #2
    Join Date
    Aug 1999
    New York, NY
    Quote Originally Posted by danceman View Post
    not expecting an answer from gilles -- i doubt you've kept using a laptop that old.
    blah blah blah
    Asus P9X79-Deluxe, Intel i7 3930k, 16gb DDR3-1600, Coolermaster ST case, Corsair AX850 psu, Zotac 980ti, Corsair Model H100 w/c, Samsung 840 Pro 512gB SSD, Intel 750 pci-e x4 NVMe 800gB, Asus Blu-ray Writer 12x, Dell P2715Q 27" Ultra HD 3840x2160 4K LED IPS Monitor, Windows10 Pro x64

    MSI GS Series GS60 Ghost-003 Gaming Notebook 15.6", Intel Core i7-4700HQ 2.40GHz, 16GB Memory 1TB HDD 128GB m.2, NVIDIA GeForce GTX 860M 2GB, 4.36 lbs, LinuxMint 18.2 Cinnamon.

  3. #3
    Join Date
    Jun 2000
    Montreal, Que, Canada
    No, My oldest laptop is 3 years old, I have 3 and replace 1/year.

    But the Time, which keeps changing, is a good indication that the bios battery should be replaced.
    Gilles Lussier

    HWC Folding@Home Team

  4. #4
    Join Date
    Dec 1999
    Augusta, Georgia, USA
    Quote Originally Posted by glussier View Post
    But the Time, which keeps changing, is a good indication that the bios battery should be replaced.

    I just did this on all three laptops in the family here. My wife's 7 year old HP was a snap-it was under the hard drive. My 7 year old HP (different model) was more involved. My oldest, an 11 year old HP, took real heart surgery. Thank goodness for Google and really good documentation from HP (these were all business-class models). Loss of time was the symptom on two of them, and I replaced it on the other for good measure.

  5. #5
    Join Date
    Aug 2000
    Quebec, Canada
    I had two P4 systems (2003-2006) which had CMOS battery issues in the last few years, so it would be reasonable timeframe-wise for a Core laptop to have such issues.
    Also, symptoms outside of wrong date/time are corrupted CMOS settings, so I'd wager it could be an issue if it is accessing the BIOS on resume.

    In my case, I had no issues with the clock but was sometimes prompted with this on boot, which got worse in time :

    Core i7 2600K @ 4.6GHz | Noctua NH-D15S | ASUS Maximus IV GENE-Z | 16GB G.Skill Ripjaws X 1600 CL9 | ASUS Strix GTX 1070 OC | 256GB Crucial m4 | 2TB WD Green | Samsung DVD±RW | Seasonic X 460w Fanless | Fractal Design Define Mini | Windows 7 Ultimate | Dell U2415

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