1. Join Date : Aug 2016
    Posts : 36
    Windows 10 Pro 32-bit
       1 Week Ago #1

    How to reset the BIOS settings if there's no CMOS battery or jumper?


    Hey guys,

    So, I have this friend who messed up the BIOS settings on his Acer Aspire 5745G and now the laptop turns on but it's just a black screen. He said that he switched from his onboard video to his discreet video card and that's when the problem occurred. I know I can just remove the CMOS battery or short the 3 pin jumper with something metal to reset the BIOS settings but the problem is that I can't find either of these. It's really strange, I even brought out the whole motherboard and I still couldn't find it. I think I read somewhere there's a another way of resetting the settings but I can't remember it. Any help on this?
      My System SpecsSystem Spec


  2. Join Date : Sep 2015
    Posts : 82
    Windows 10 pro 64 bit
       1 Week Ago #2

    BicycleRow said: View Post
    Hey guys,

    So, I have this friend who messed up the BIOS settings on his Acer Aspire 5745G and now the laptop turns on but it's just a black screen. He said that he switched from his onboard video to his discreet video card and that's when the problem occurred. I know I can just remove the CMOS battery or short the 3 pin jumper with something metal to reset the BIOS settings but the problem is that I can't find either of these. It's really strange, I even brought out the whole motherboard and I still couldn't find it. I think I read somewhere there's a another way of resetting the settings but I can't remember it. Any help on this?

    This may help, from Google:Reset Acer Aspire 5745g Bios - YouTube
      My System SpecsSystem Spec


  3. Join Date : Aug 2016
    Posts : 36
    Windows 10 Pro 32-bit
       1 Week Ago #3

    I'm sorry but that doesn't help at all. I said there's just a black screen, nothing can be seen.
      My System SpecsSystem Spec


  4. Join Date : Sep 2015
    Posts : 82
    Windows 10 pro 64 bit
       1 Week Ago #4

    Did you see the instructions below the video to use f2 to enter bios, then f9 to set defaults and f10 to save the defaults. You don't need to see a display to accomplish that.
      My System SpecsSystem Spec


  5. Join Date : Aug 2016
    Posts : 36
    Windows 10 Pro 32-bit
       1 Week Ago #5

    Oh, my bad. I didn't look at the description and I wasn't even paying attention to what he was saying. I'll try this tomorrow with my friend. It's the same laptop so hopefully it'll work. Thanks!
      My System SpecsSystem Spec


  6. Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,954
    Windows 10 IoT
       1 Week Ago #6

    Many laptops/tablets hide or eliminate the BIOS reset jumper. It's not there or not marked as such. Not like it is on a desktop PC. Mainly to prevent a thief from easily resetting the BIOS/Boot password and getting access. Even removing the BIOS battery will prevent those settings from being reset. Other settings like boot order etc will be returned to defaults though when you remove the CMOS battery. Every laptop I've disassembled has had a CMOS battery, Usually its several batteries in a pack to prolong their effective life. Replacing them can be a real PITA.
      My System SpecsSystem Spec


  7. Join Date : Jun 2015
    UK
    Posts : 1,140
    Windows 10 Home x64 (Laptop), Windows 10 Pro x64 (Desktop)
       1 Week Ago #7

    See this http://www.insidemylaptop.com/disass...e-5745-laptop/

    Accessing and removing the CMOS battery is simple if the laptop is like this one.
      My System SpecsSystem Spec


 


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