Burning smell from computer

Discussion in 'OT Technology' started by Gen5_EG, Jun 14, 2009.

  1. Gen5_EG

    Gen5_EG :)

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    So I booted up my Dell, it was only on for 5 minutes until the monitor shut off, then I smelled like a bad foul odor (like electrical, but no smoke). The power LED was blinking amber.

    WTF is the problem?

    PSU?
    MOBO?
    PROCESSOR?

    Please tell me it's the PSU as if it is, I'll go and get an Antec or something to replace it. Other than that, I have no idea how to go forth in fixing this.
     
  2. retorq

    retorq What up bitch??

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    More then likely the motherboard. I've had a few Dell motherboards cook, had a few drives ... power supplies are rare for us to replace at work. What kind is it??
     
  3. Gen5_EG

    Gen5_EG :)

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    It's a Dimension 4700
     
  4. cp5184

    cp5184 New Member

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    open it up and look. when electronics let out the magic smoke there are usually burn marks and stuff.
     
  5. Gen5_EG

    Gen5_EG :)

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    I don't see any visible burn marks on the psu, nor do i see it on the processor heat sink, etc. Everything looks good upon inspection.
     
  6. negative zero

    negative zero New Member

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    Video card? Or if it's a dell it might just be onboard video which means the mobo as mentioned earlier. Under warranty?
     
  7. OniMinion

    OniMinion ...recalls when this forum was actually about cars OT Supporter

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    Open the case, and look for scorching marks on the motherboard and other components. Otherwise, I'd also look for capacitors that are enlarged. I've had a similar problem years ago when a power supply went out.
     
  8. Doomsday

    Doomsday XXX

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    http://www.webmadeeasy.net/ComputerDocs/Dell/Dimension/4700/ServiceManual/adtshoot.htm#wp1043338


    replace the PSU (4700 will accept any ATX psu)
    if that don't work,... its the mobo
     
  9. avctechsupp

    avctechsupp New Member

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    Will the computer boot? Sure it's not the monitor? Do the drives spin? Will it get an IP if connected to a router/switch?

    try this: tinyurl.com/kjtpz3
     
  10. negative zero

    negative zero New Member

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    Can you test the power supply in another system?


    I've got an extra antec power supply off an old system. If you are interested, pm me.
     
  11. Stilgar1973

    Stilgar1973 New Member

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    I know you are not supposed to take power supplies apart, but I have in a search for the causes of problems like this.
     
  12. Doomsday

    Doomsday XXX

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    what else is there to know?
    its either heat related or a part simply failed to function

    attempting to fix it isn't even worth the risk
    just replace the unit or let warranty handle it :dunno:
     
  13. critter783

    critter783 OT Supporter

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    Sounds like blown capacitors in the PSU. We had a lot of Dells with this problem about 3 years ago, and the symptoms were always exactly as you described. Dell eventually sent us enough PSUs to replace each one we'd ordered during that time.
     
  14. OniMinion

    OniMinion ...recalls when this forum was actually about cars OT Supporter

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    Right, like I said - I've seen that a bunch at GeekSquad.
     
  15. Krakerjak

    Krakerjak Active Member

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    Whether its the psu or mobo replace both.
    The psu could be dying but actually took out your mobo in the process, and could also take out a new one.
     

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