UNSOLVED

CTG_8273

updated

6 years ago

C

CTG_8273

2 Intern

514 Posts

0

1239

January 21st, 2021 06:00

Question about CMOS Jumpers

Is there a tool to pull the jumpers? I have huge fingers and It will be hard to pull the jumper. I feel like there should be a tool. I remember way back in the day there was a tool to pull a BIOS chip. If a BIOS got corrupted you would pull the chip and replace. And I don't think small plies or tweezers would work either.

  • John-Jay

    2 Intern

    358 Posts

    1055

    0

    Posted January 21st, 2021 09:00

    Hi, @CTG_8273 ,

     

    I haven't tried these for CMOS Jumpers, but wouldn't Long Nose Pliers be of use (I believe that they are also called "Snipe Nose")?? 

     

    Otherwise, I would have thought that a Sturdy pair of Tweezers would work!

  • CTG_8273

    2 Intern

    514 Posts

    1044

    0

    Posted January 21st, 2021 12:00

    @John-Jay 

    Long nose plies will not work because the ends are too thick. I think I have found the tool I need. This may work.

    IC Chip Extractor   That is what we used back in the day. 

    @RoHe 

    Sometimes the jumpers needs to be pulled. As far as the BIOS being soldered to the board. Used to we could just pull it out. I seen this done back in the late 90's on boards like Aopen with Award BIOS. The chip for sure could be changed. Check this out Award BIOS Chip 

  • RoHe

    12 Elder

    45230 Posts

    172625 Points

    1047

    0

    Posted January 21st, 2021 12:00

    Save yourself the hassle.

    If you need to reset BIOS, unplug PC from the wall, remove the motherboard battery and press/hold power the button on front of PC for ~30 sec. Then reinstall the battery.  Done!  

    BTW: BIOS chips are hard-mounted on motherboards and aren't a DIY replacement project.

  • CTG_8273

    2 Intern

    514 Posts

    1033

    0

    Posted January 21st, 2021 13:00

    @Vic384 

    I have needle nose plies but they are not small. I't  looks like the plies are a little cheaper.

    @RoHe 

    If it was that easy to clear the BIOS there would not be jumpers. Don't mean to sound like a smart elect but sometimes pulling the jumpers are necessary .

  • Vic384

    6 Operator

    3161 Posts

    1036

    0

    Posted January 21st, 2021 13:00

    @CTG_8273 Some types of jumpers have a U-shaped hole and a metal bar across the top that allows you to hook the bar with a small hook to pull it out, but most jumpers like the one pictured in the Service Manual do not have that design. I suggest small needle-nose pliers. 

  • RoHe

    12 Elder

    45230 Posts

    172625 Points

    1040

    0

    Posted January 21st, 2021 13:00

    I doubt there's any need to pull the CMOS jumper if you remove the battery, as I said above.

    And if BIOS CMOS chips in Dell PCs could be removed, people wouldn't have to replace the motherboard if a BIOS update fails...

    You're in the 21st Century now...

  • Vic384

    6 Operator

    3161 Posts

    1027

    0

    Posted January 21st, 2021 14:00

    @CTG_8273 I have used several different types of IC extractors and an IC extractor will not work. Most IC extractors depend upon the space underneath the IC chip and there is no space underneath the jumper. If you grip the jumper with an IC extractor like the one you linked to it will most likely slip along the sides of the jumper and if you are not careful and do manage to remove the jumper it may fall into the case. Here is a link that pictures different types of jumpers (closed top and open top) that are designed to be more easily removed but I do not think the jumpers that Dell uses have these features.

  • Vic384

    6 Operator

    3161 Posts

    1025

    0

    Posted January 21st, 2021 14:00

    @CTG_8273 The needle nose pliers I have are designed to work with electronic parts and the tips are very long and small.