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Old 10-08-2004, 02:10 PM   #1 (permalink)
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I smoked the motherboard

Hey I have a question. I had a computer that just stop powering up one day. So I brought a new power supply and installed it. Now I know I hooked everything up correctly and when I powered up the computer came on. About 1 mintue later the motherboard started smoking. UGH! now was this due to the old power supply going out that cause the problem, or was it the new power supply that kill the motherboard. at least I think the motherboard is dead. Yesterday I power it back up and there was no smoke but I heard no beeps and only saw a red light. Have any ideas on what happened? Is the computer still worth trying to save?

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Old 10-08-2004, 02:40 PM   #2 (permalink)
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motherboard is a j-bird amd 7. I just read the rules. Sorry
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Old 10-11-2004, 03:42 PM   #3 (permalink)
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Re: I smoked the motherboard

Quote:
Originally posted by smilecme
Hey I have a question. I had a computer that just stop powering up one day. So I brought a new power supply and installed it. Now I know I hooked everything up correctly and when I powered up the computer came on. About 1 mintue later the motherboard started smoking. UGH! now was this due to the old power supply going out that cause the problem, or was it the new power supply that kill the motherboard. at least I think the motherboard is dead. Yesterday I power it back up and there was no smoke but I heard no beeps and only saw a red light. Have any ideas on what happened? Is the computer still worth trying to save?
I'm not experts when it comes to motherboards, but from what you told me, I think that it's safe to say that your motherboard is fried. When you bought the new powersupply for your motherboard, did you decide it to do it on your own, or did a computer techy tell you to do it? I think the power supply you bought had probably supplied too much power for what your mother board could handle, and i doubt that there is a way to save it now.

Though I've never killed my motherboard , I have burned out the memory slot on my computer. One time I was installing new memory that I had bought, I had inserted it the wrong way. My computer began beeping very loudly when I pressed the power button. When I shut it off and take the memory out, I find that it's burning hot, and after it cools, I stuck it back into my computer, and my computer starts up fine but does not recognize the new memory i've added. I try the same thing with another piece of new ram, and still the same problem. Your mistake is very much like mine, except that it's on a large scale. I'm sorry man, I'm afraid that what's happened is irreversible.
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Old 10-11-2004, 08:03 PM   #4 (permalink)
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Where exactly did it start smoking, seems rather odd.

As for saving the computer, if the mobo is the only problem, and turns out to be toast, then you can find a comparable one for around $30 and reuse everything else. I would call that salvagable.
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Old 10-11-2004, 08:24 PM   #5 (permalink)
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Quote:
I think the power supply you bought had probably supplied too much power for what your mother board could handle, and i doubt that there is a way to save it now.
There is no such thing as too much power being supplyed to any component... I think its a bad idea to make suggestions about things you know nothing about... according to you he needs a less powerful PSU, wich is NOT the case...
components draw power, whatever power they need... it is the PSU's job to supply it... it doesnt send out a certain amount to a component.
there are many ways that your board could have been damaged... it may have been screwed up by the previous PSU going out...
what brands and wattages are we talking about for the old and new PSU's?
You will have no way of knowing what is good or bad from your computer untill you start replacing parts... the mobo being the first... then the bios beeps will start letting you know what, if anything else is bad...

Last edited by JPMiller; 11-03-2004 at 01:17 AM.
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Old 10-12-2004, 09:58 AM   #6 (permalink)
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I have installed PSU before so I know I didn't hook it up wrong. I just never have come acrossed one that caused the MBO to smoke. I have read about smoking the MBO in my books at school and on the internet. I just never have seen it happen. I agree with JPmiller that the old psu was the problem.
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Old 10-12-2004, 02:31 PM   #7 (permalink)
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If you have an old machine with an AT power supply you can burn it up by hooking the power backwards to the board. It would have 2 plugs that mount together on the board.
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Old 10-13-2004, 04:32 PM   #8 (permalink)
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Nope it's an atx PSU so I know I didn't mess that up
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