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Thread: Dark power 850w pro went bang & died

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    Default Dark power 850w pro went bang & died

    the other day whilst surfing da net there was a load bang from the back of my pc... this bang also triped the mains in my house after resetting the mains i noticed my everything came back on except the pc i then checked the fuse in the power lead which seem fine.. i opened the case to find fine fragments of glass.....but no smell of burning. i removed the psu and opened it the 1st thing i noticed was a small back chip which fell out the psu and a small glass fuse which looked like it had exploded.. on the clip was printed (CREE CSD04060A) i googled this part and found out tha this is a zero recovery rectifier what ever that is..... i believe that this is the part that gave up. the psu was just over a year old and i am running a single 8800 gtx set up with dual ore cpu i was suprized that this could happed because i have read some decent reviews on this unit i was also worried damage had been caused to the rest of bits inside the pc... ive contacted listan who are the manufacturer but they have not responded....i have since bought a NorthQ Giant Connector 850W Power Supply which looks great and doing the job just fine and i guess the main thing is no other damage was done to the rest of the pc..... any comments

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    Is this Topower made unit ? A shot of the PSU internal would be very appreciated, i'd like to know whether the primary or secondary side that has blown up.
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    Default

    not sure who made the unit.... i think its the primary side thats gone
    here a pic

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    Well, a wider shot of the unit would tell us who probably made this thing...

    But your pic shows that it did fry on the primary side and therefore very unlikely any damage came to any of your other components.

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    That's a diode, and it's probably in the PFC section of the primary side.

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    I found a review of the 850W on Bjorn and it looks like the 650W that I reviewed for Jon way back when. That means that it's A.) a topower build and B.) designed for 200V and up AC input. Now, if you've got 110V then that's why it died on the primary side. If not then it being a topower is why

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    Quote Originally Posted by madmat View Post
    designed for 200V and up AC input. Now, if you've got 110V then that's why it died on the primary side.
    Naw - that would have blown the primary cap(s) to kingdom come first.

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    It depends on the amperage rating of the diode. Half the voltage means double the amperage passed. That can mean dead diode which is what he has. I can't see the lower voltage killing the caps.

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    Ah right... lower voltage.

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    the psu was uk spec 220v.....the part thats blown is quote (CREE CSD04060A) i googled this part and found out that this is a zero recovery rectifier...its mounted on the heatsink as shown in my 1st post

    heres a wide angle shot

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