Fuses on Motherboards

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Solder Boy
    Senior Member
    • Nov 2006
    • 178

    #1

    Fuses on Motherboards

    Somebody was telling me there are some fuses on the motherboard... if there is I don't recognize them, and that sometimes this is what causes a motherboard not to power up even after recapping, is this correct?

    TIA

    www.bcrelectronics.ca
  • Topcat
    The Boss Stooge
    • Oct 2003
    • 16956
    • United States

    #2
    Re: Fuses on Motherboards

    They are surface mount, usually green in color, and are prefixed with 'F'. EX: F101 might be the marking on the motherboard for it. I'll try and get a pic of one next time I'm at the shop.
    <--- Badcaps.net Founder

    Badcaps.net Services:

    Motherboard Repair Services

    ----------------------------------------------
    Badcaps.net Forum Members Folding Team
    http://folding.stanford.edu/
    Team : 49813
    Join in!!
    Team Stats

    Comment

    • linuxguru
      Badcaps Legend
      • Apr 2005
      • 1564

      #3
      Re: Fuses on Motherboards

      There are some through-hole polyfuses for the keyboard, mouse and USB. They might be grey, beige or similar in colour, and look like a 1/4W through-hole cylindrical resistor in appearance.

      Comment

      • Solder Boy
        Senior Member
        • Nov 2006
        • 178

        #4
        Re: Fuses on Motherboards

        Originally posted by Topcat
        They are surface mount, usually green in color, and are prefixed with 'F'. EX: F101 might be the marking on the motherboard for it. I'll try and get a pic of one next time I'm at the shop.
        Thanks Topcat, will look forward to seeing it
        www.bcrelectronics.ca

        Comment

        • Rainbow
          Badcaps Legend
          • Aug 2005
          • 1371

          #5
          Re: Fuses on Motherboards

          And no, they don't cause the board not to work. However, they can cause the keyboard, mouse, USB or game port not to work.

          Comment

          • ifrythings
            Member
            • Apr 2006
            • 19

            #6
            Re: Fuses on Motherboards

            Well I had the camera handy so heres those pic's topcat was going to show.
            Attached Files

            Comment

            • Topcat
              The Boss Stooge
              • Oct 2003
              • 16956
              • United States

              #7
              Re: Fuses on Motherboards

              ^
              Thank you. I completely forgot about getting them.
              <--- Badcaps.net Founder

              Badcaps.net Services:

              Motherboard Repair Services

              ----------------------------------------------
              Badcaps.net Forum Members Folding Team
              http://folding.stanford.edu/
              Team : 49813
              Join in!!
              Team Stats

              Comment

              • ifrythings
                Member
                • Apr 2006
                • 19

                #8
                Re: Fuses on Motherboards

                Originally posted by Topcat
                ^
                Thank you. I completely forgot about getting them.
                No problem, heres a few more I forgot about and maybe not known of.

                I don't have a pic for the 1/4W resistore fuse.

                BTW the little grey retangular blocks in the first picture are actually coils but they will open if there is too much current, hense acting like a fuse(seen usb ports use this and even replaced them)
                Attached Files

                Comment

                • MD Willington
                  Badcaps Veteran
                  • Sep 2004
                  • 702

                  #9
                  Re: Fuses on Motherboards

                  Last pic is from a PCChips motherboard isn't it..?
                  Ya'll think us folk from the country's real funny-like, dontcha?

                  The opinions expressed above do not represent those of BADCAPS.NET or any of their affiliates.

                  Comment

                  • ifrythings
                    Member
                    • Apr 2006
                    • 19

                    #10
                    Re: Fuses on Motherboards

                    Originally posted by MD Willington
                    Last pic is from a PCChips motherboard isn't it..?
                    Damn, it must of been that OST caps that gave it away .
                    Ya it's a M825 V7.5C, has the cpu soldered to the pcb. I would recap it if I can find a heatsink for the CPU.

                    Comment

                    • Solder Boy
                      Senior Member
                      • Nov 2006
                      • 178

                      #11
                      Re: Fuses on Motherboards

                      Thanks for the visual aids.. Already figured out the surface mount fuses are probably not worth the hassle of trying to replace, sorry but my hands are no match for the robot that put em in, in the first place lol.


                      ifrythings: What type of heatsink are you looking for? I own a PC Recycling business, perhaps I might have what you are looking for?
                      www.bcrelectronics.ca

                      Comment

                      • ifrythings
                        Member
                        • Apr 2006
                        • 19

                        #12
                        Re: Fuses on Motherboards

                        Well I'm at work right now but when I get to my shop I'll take a picture, anyway, it's a soldered on one so the heat sink is very close to the board and is screw mounted.

                        More details when I can get ya a picture.

                        BTW the fuse can be changed, tweesers and good lighting and you have it set.

                        Comment

                        • ifrythings
                          Member
                          • Apr 2006
                          • 19

                          #13
                          Re: Fuses on Motherboards

                          Here you go Solder Boy the pics I said I would get ya.
                          Attached Files

                          Comment

                          • Solder Boy
                            Senior Member
                            • Nov 2006
                            • 178

                            #14
                            Re: Fuses on Motherboards

                            Thanks, give me a few days due to Christmas and all that jazz and I'll see what I can come up with. I never know what I'm gonna get from one day to the next.
                            www.bcrelectronics.ca

                            Comment

                            • MD Willington
                              Badcaps Veteran
                              • Sep 2004
                              • 702

                              #15
                              Re: Fuses on Motherboards

                              Originally posted by ifrythings
                              Damn, it must of been that OST caps that gave it away .
                              Ya it's a M825 V7.5C, has the cpu soldered to the pcb. I would recap it if I can find a heatsink for the CPU.
                              Nope, my M848 V2.x had "fuses" like that..

                              Hey cool a SMT mobile athlon XP...
                              Last edited by MD Willington; 12-21-2006, 02:08 PM.
                              Ya'll think us folk from the country's real funny-like, dontcha?

                              The opinions expressed above do not represent those of BADCAPS.NET or any of their affiliates.

                              Comment

                              Related Topics

                              Collapse

                              • Document Archive
                                Surface Mount Fuses Fundamentals Datasheet
                                by Document Archive
                                TE Circuit Protection offers the widest selection of surface-mount fuses available for addressing a broad range of overcurrent protection applications. Helping to prevent costly damage and promote a safe environment for electronic and electrical equipment, our single-use chip fuses provide performance stability to support applications with current ratings from .5A up to 20A.

                                TE Circuit Protection also offers the telecom FT600 fuse for telecommunications applications. This telecom fuse helps comply with North American overcurrent protection requirements, including Telcordia, GR-1089,...
                                10-07-2024, 06:07 AM
                              • glovecaps
                                Asus ROG Strix Scar G533qm with a G733qm Motherboard, can I modify the Bios to accept G533 Bios
                                by glovecaps
                                Hello,

                                I have a Asus ROG Strix Scar 15 (G533QM) that had a dead motherboard (Graphics card dead) and after trying to fix the motherboard with no success, I bit the bullet on a sale for a new motherboard. I ordered a motherboard for the 15 inch model which is the one that I have, and when the motherboard arrived it wasn't for a little while that I saw it was from the 17 inch model.

                                My question is, can I update the Bios on this G733 motherboard to a G533 Bios.

                                The reason for wanting to do this is that the keyboard isn't working as it should, and I think this...
                                11-25-2024, 04:23 PM
                              • Docus
                                Legion Y540 17irh motherboard issue ( need help to know how to diagnose my motherboard)
                                by Docus
                                Hi everyone 😀,

                                I'm here today to ask for help with repairing the motherboard of a Lenovo Legion Y540 17IRH.

                                To give you some context, I'm passionate about computer repair so much so that I've invested in a lot of tools and started practicing on dead and old hardware. I've been learning how to solder and desolder components, mostly focusing on phone repairs.

                                Recently, I bought a broken Lenovo Legion Y540 17IRH for just €150, and there are two main reasons why I made this purchase:
                                1. I already own the exact same model, but its plastic chassis is badly damaged.
                                ...
                                06-10-2025, 04:24 PM
                              • Archimedes
                                HP Envy 17-3290NR 3D Blank Screen - motherboard Louis V1.1 6050A2489901
                                by Archimedes
                                Subject is a blank screen issue in HP Envy 17-3290NR 3D version laptop with motherboard Louis V1.1 6050A2489901 MB-A02. Production year is 2012. This one is a 2nd hand motherboard which I could use it for few months only. Suddenly no output from the internal display and also no signal from HDMI port then Windows out of order after few boots.

                                Caps lock working normally and no HP's caps-lock warning blinks. Making a hard reset and replacing the RAM sticks or using different slots didn't help.

                                Fans are spinning. Blindly could install windows11 and got the device manager...
                                07-30-2024, 05:14 PM
                              • acedogblast
                                Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
                                by acedogblast
                                This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

                                There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
                                11-02-2024, 05:13 PM
                              • Loading...
                              • No more items.
                              Working...