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Thread: CPU died

  1. #1
    Senior Member Driftwood's Avatar
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    Default CPU died

    Got a Raidmax RX-520 here that dont go no more.
    Just opened it up to have a look.
    Always more satisfying if you can see a burnt componant or some other reason for it not to go.
    Nothing, what is it that usually dies on these things?

    Damm I meant PSU of cause.

  2. #2
    Pedantic & Cynical Member Snorkbox's Avatar
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    Default Re: CPU died

    I don't think it will be the CPU as PSUs don't have them.

    Maybe capacitators looking brown, leaking or bulging.

  3. #3
    Senior Member 1101's Avatar
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    Default Re: CPU died

    check that the hamster hasn't fallen off his wheel

    seriously tho, dont even attempt a repair. If you were competent to to do it, you wouldnt need to ask.
    Nothing wrong with looking inside (zap, burnt finger,caps storing 320V blah blah etc), now chuck it in the bin.

    Parts that fail in PSU: caps, IC's,Power Fets, dry joints, burnt tacks, resistors, Flux Capacitors
    Last edited by 1101; 28-10-2010 at 01:36 PM.

  4. #4
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    Default Re: CPU died

    Sometime replacing the fuse capsule- if it has one- will work wonders.

  5. #5
    Senior Member Driftwood's Avatar
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    Default Re: CPU died

    I wasn't concidering trying to fix it. Just that if you replace a unit for someone else they are always happier if you can show them why they are forking out the $$$$$

  6. #6
    Pedantic & Cynical Member Snorkbox's Avatar
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    Default Re: CPU died

    I just give the dead unit back and they can do what they like with it.

    This may include, for all I care, taking it to someone else to be fixed or not or using it for a doorstop.

  7. #7
    Senior Member Gobe1's Avatar
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    Default Re: CPU died

    I have pulled several dead PSUs apart also and never found anything so i know what you are saying Drift. What has actually gone wrong??
    Multiplayer games are the Shizz "Theres nothing like killing your mates!" Me

  8. #8
    Senior Member pctek's Avatar
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    Default Re: CPU died

    Raidmax have a high failure rate. Throw it in the bin and buy a Corsair.
    wipe your paws.

  9. #9
    VoidMaster
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    Default Re: CPU died

    If the fuse is intact and there is no other obvious blow up then the likely cause is the drop in value, due to heating, of two 1uF electrolytic capacitors which act as part of a switch-on multi-vibrator circuit and are no longer causing oscillation through their diminished capacitance.

    The symptoms leading up to/indicating this failure which is very common are:

    Intermittent starting, especially on cold mornings

    Will work after being left on for a while

    Works if placed in warm room

    Random no start up gradually increases until no go.

    They can be replaced with a bit of trouble and should be the high temperature black type of electro, normally 1-4.7uF 50V.

    They are mostly placed very close to the power switching device/s.

    Caution, the smoothing caps are often not discharged by the dedicated current leak resistors which go open-circuit in older units that have had a lot of use, these caps can deliver a substantial amount of energy and should be treated with extreme caution. ie they need to be discharged with a suitably valued and insulated resistor by hand after each power up, or replace the in-built discharge resistors after determining that they are faulty.
    Last edited by zqwerty; 29-10-2010 at 12:50 PM.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  10. #10
    Computer "Specialist" Agent_24's Avatar
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    Default Re: CPU died

    Quote Originally Posted by Driftwood View Post
    Got a Raidmax RX-520 here that dont go no more.
    Just opened it up to have a look.
    Always more satisfying if you can see a burnt componant or some other reason for it not to go.
    My friend had a Raidmax, was about two weeks old when smoke poured out of it

    I think it was one of the primary filter capacitors going by what I could see looking in through the fan but not sure as we didn't want to void the warranty.

    Quote Originally Posted by Driftwood View Post
    what is it that usually dies on these things?
    http://www.repairfaq.org/sam/smpsfaq.htm#smpsmcp
    Non-system disk or disk error. Replace and strike any key when ready.

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