SciLabs GeForce 4 MX 440 with bad caps

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  • Deathshrimp316
    New Member
    • Jan 2006
    • 2

    #1

    SciLabs GeForce 4 MX 440 with bad caps

    A few years ago I purchased a GeForce 4 and have been using it for quite a while with it overclocked, no problems. It had run fault free until I put it into my newest PC, where I believe that a hot motherboard (due to poor contact between the CPU and its heatsink - the CPU fan had to run at 5500+ rpm to keep it at 60 deg. C) contributed to the failure of 2 capacitors on my video card. At first they were slightly bulged and the card continued to run as per usual, but then problems started occurring so I opened up my case and one of the Rifeking capacitors (6.3 V, 1500 uf) had significantly leaked out its top, and another seriously bulged.

    I know that Rifeking is a brand with a bad reputation, so I will be replacing all of the Rifeking caps, even those not bulging. There are also 2 'KYS' brand capacitors on the card (16V, 470 uf) that show no signs of damage and are located on a separate area of the PCB.

    What should I replace the busted Rifekings with, and should I replace the KYS brand caps?

    Also, I once read somewhere that by using caps with more capacitance than what is required can lead to increased stability. Is this true?
  • linuxguru
    Badcaps Legend
    • Apr 2005
    • 1564

    #2
    Re: SciLabs GeForce 4 MX 440 with bad caps

    Any of the good brands listed in the good capacitors thread can be used. You can probably leave the 470/16 caps alone unless they're in the VRM input section (near the FETs/toroidal inductors).

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