Chosing new caps

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  • Darel-S
    New Member
    • Sep 2016
    • 8
    • Slovenia

    #1

    Chosing new caps

    Hi everyone o/, Im trying to fix an old mobo lga 775 that have bulged caps on it and I have no idea which capacitors to buy. The original ones are OST 680uF 4V I think is this one --> soo what should I check on the new ones ? they must be low ESR or same voltage and capacity etc?
  • Wester547
    -
    • Nov 2011
    • 1268
    • USA.

    #2
    Re: Chosing new caps

    If they are on the CPU VCORE output, these should do fine (it should be safer to go one step lower in voltage if they are around the CPU):

    https://www.badcaps.net/store/produc...products_id=76

    The HNs linked below may be a better option if there's less margin in terms of voltage.
    Last edited by Wester547; 09-07-2016, 02:11 PM.

    Comment

    • LEDSpex
      New Member
      • Sep 2016
      • 2
      • United States of America

      #3
      Re: Chosing new caps

      This old post is probably still relevant as to quality caps:
      https://www.badcaps.net/forum/showthread.php?t=414

      I am new to the forum but just discovered that this website has a store where you can buy the caps you need:
      https://www.badcaps.net/store/index.php

      The voltage rating can be higher than 4V, but the capacitance should be the same or as close as you can get. I think any caps you buy through this site will have reasonably low ESR characteristics.

      You also need to check the size of your caps to make sure the new ones will fit on your motherboard. Your data sheet shows the 470uF capacitor to be 8mm Diameter x 12mm Height and the badcaps 470uF 10V Nichicon caps are the same dimensions.
      https://www.badcaps.net/store/produc...roducts_id=207

      Hope this helps. If you are new to motherboard repair, you might not realize the board could have other damage, so this could be a learning experience. I tried replacing motherboard caps about 10 years ago and it was a fail. I don't mean to discourage you, just a heads-up!

      Comment

      • Mint Waxed
        Member
        • Aug 2016
        • 35
        • USA

        #4
        Re: Chosing new caps

        Originally posted by Darel-S
        Hi everyone o/, Im trying to fix an old mobo lga 775 that have bulged caps on it and I have no idea which capacitors to buy. The original ones are OST 680uF 4V I think is this one --> soo what should I check on the new ones ? they must be low ESR or same voltage and capacity etc?
        When selecting a replacement in addition to capacitance & voltage rating you should (using a metric ruler) measure the diameter, height, and lead spacing. Then if you go to Mouser Electronics and search "Electrolytic Capacitors, Leaded" you can read the parameters to make your selection. The Panasonic FR series are low ESR while the NHG series are Standard.

        Comment

        • Darel-S
          New Member
          • Sep 2016
          • 8
          • Slovenia

          #5
          Re: Chosing new caps

          Originally posted by LEDSpex
          This old post is probably still relevant as to quality caps:
          https://www.badcaps.net/forum/showthread.php?t=414

          I am new to the forum but just discovered that this website has a store where you can buy the caps you need:
          https://www.badcaps.net/store/index.php

          The voltage rating can be higher than 4V, but the capacitance should be the same or as close as you can get. I think any caps you buy through this site will have reasonably low ESR characteristics.

          You also need to check the size of your caps to make sure the new ones will fit on your motherboard. Your data sheet shows the 470uF capacitor to be 8mm Diameter x 12mm Height and the badcaps 470uF 10V Nichicon caps are the same dimensions.
          https://www.badcaps.net/store/produc...roducts_id=207

          Hope this helps. If you are new to motherboard repair, you might not realize the board could have other damage, so this could be a learning experience. I tried replacing motherboard caps about 10 years ago and it was a fail. I don't mean to discourage you, just a heads-up!
          Ty guys for all the replies I fixed it already, probably I didn't chose the best caps I could but its good enough 'mostly are panasonic fc xD' its an old mobo and its probably a waste of money to buy the best there is, its working for now and I'm happy with it. I learned a lot with it and I'm sure I'm gonna need some help in the future. ty again for your time

          Comment

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