Flipped the power switch on my psu and spark on mobo

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  • Drew
    Member
    • Oct 2010
    • 40

    #21
    Re: Flipped the power switch on my psu and spark on mobo

    Originally posted by seanc
    What does 'interning' mean in this context?
    I'm not familiar with the word intern, outside of someone working in a temporary position to gain experience.
    Forgot my punctuation there lol. Here is what i was trying to say, "On the note of the power supply, I am an intern at this time so I really can not afford buying a new psu for a computer that is just going to be a test machine."

    Comment

    • seanc
      Badcaps Legend
      • Nov 2008
      • 1319

      #22
      Re: Flipped the power switch on my psu and spark on mobo

      Originally posted by Drew
      Just hooked up one of the working psu's I had in another machine and a light came on. Should I hook everything up to the working psu and see if it boots or just hook it up to a hd first?
      You hooked the power supply up to what? The green light was where?

      If you hooked up the power supply to the motherboard and the green 5VSB led came on, hook the P4 connector on and test it.

      Do you have a multimeter in your office? You'd be wise to check the voltages of the PSU before going much further.

      Comment

      • Drew
        Member
        • Oct 2010
        • 40

        #23
        Re: Flipped the power switch on my psu and spark on mobo

        Originally posted by Toasty
        My car started this morning when I went to work. Now I want to go home and it won't....

        doo-doo happens!
        Haha, probably left your lights on there . But I suppose stranger things have happened

        Comment

        • Drew
          Member
          • Oct 2010
          • 40

          #24
          Re: Flipped the power switch on my psu and spark on mobo

          Originally posted by seanc
          You hooked the power supply up to what? The green light was where?

          If you hooked up the power supply to the motherboard and the green 5VSB led came on, hook the P4 connector on and test it.

          Do you have a multimeter in your office? You'd be wise to check the voltages of the PSU before going much further.
          To my knowledge there is not one in the office. I might be able to get that information tomorrow when my boss is here. I apologize for my vagueness, yes I hooked up the psu from a machine i finished fixing the other day and hooked up the 24 pin connector along with the 4 pin connector. The green light on the mobo did come on when i flipped on the psu.

          Comment

          • seanc
            Badcaps Legend
            • Nov 2008
            • 1319

            #25
            Re: Flipped the power switch on my psu and spark on mobo

            Multimeters can be bought very cheaply, if you wish to pursue topics like this further in the future, it's worthwhile getting one.
            They can also be used around the home, to make sure the mains voltage terminals you're about to stick a screwdriver in, aren't supplying 240v (or in your case, 120v).

            As for buying a new PSU, get the company to pay for it. It's their PC.

            Comment

            • Drew
              Member
              • Oct 2010
              • 40

              #26
              Re: Flipped the power switch on my psu and spark on mobo

              I will plan on getting a multimeter probably this weekend, never had much use for one but it'll be useful now. On the note of the psu, there is about 8 computer cases here at the moment but they all came from my bosses house. So I know that the regular workstations aren't company property but the server boxes are another story. Getting a new psu depends solely upon the status of the one that may have fried the mobo. Hoping the mobo isn't completely useless so there would be 4 machines up and working. But yea back to the issue of a new psu it is currently not an option. If you have suggestions for one then please leave the name of it just incase the company okays the purchase.

              Comment

              • Drew
                Member
                • Oct 2010
                • 40

                #27
                Re: Flipped the power switch on my psu and spark on mobo

                I don't believe anyone has answered this yet but, should i hold off on trying to do anything else with the machine until i get a multimeter?

                Comment

                • seanc
                  Badcaps Legend
                  • Nov 2008
                  • 1319

                  #28
                  Re: Flipped the power switch on my psu and spark on mobo

                  Yes you should wait until you check the voltages, as I mentioned earlier.

                  Comment

                  • Drew
                    Member
                    • Oct 2010
                    • 40

                    #29
                    Re: Flipped the power switch on my psu and spark on mobo

                    Alright and which psu should I check the voltage on? I think you are refering to the one that I took from the working machine but I'm just wondering why would I check the voltage of that psu when it is working fine in another machine.

                    Comment

                    • seanc
                      Badcaps Legend
                      • Nov 2008
                      • 1319

                      #30
                      Re: Flipped the power switch on my psu and spark on mobo

                      Yes, you should check the voltage of the working PSU.
                      Just because the PSU works, does not mean it is outputting the correct voltages, it just means the PC you took it out of was tolerating them the way they were.

                      Chances are it works OK, but after the Smart power, it's wise to check, don't you think?

                      Comment

                      • Drew
                        Member
                        • Oct 2010
                        • 40

                        #31
                        Re: Flipped the power switch on my psu and spark on mobo

                        Well I will have more information on the issue tommorow but I would just like to get confirmation on what the cause of this problem is. So it is pretty safe saying that it was the faulty psu that caused the problem and not the 4 pin connector or the massive amount of dust that flew around when the machine was turned on.

                        Comment

                        • Drew
                          Member
                          • Oct 2010
                          • 40

                          #32
                          Re: Flipped the power switch on my psu and spark on mobo

                          Yea, I agree with what your saying. The psu that I pulled out of the other PC is an Allied model: AL-C350ATX MAX 350W. Do you know of any known/documented issues with this model?

                          Comment

                          • retiredcaps
                            Badcaps Legend
                            • Apr 2010
                            • 9271

                            #33
                            Re: Flipped the power switch on my psu and spark on mobo

                            Originally posted by seanc
                            Yes, you should check the voltage of the working PSU.
                            Just because the PSU works, does not mean it is outputting the correct voltages, it just means the PC you took it out of was tolerating them the way they were.
                            I totally agree. When I received the power supply with the whine, I asked the owner when did the whine start.

                            He said the whine was present for a few months. All that time, the computer/motherboard worked, but who knows how much overvoltage was on the 5V STBY before the power supply finally killed the motherboard.

                            So if the owner stopped using the computer when the whine first started, we might have been able to spot the bad capacitors BEFORE it had time to cause damage.

                            Also, as an intern, measuring a "good" power supply with a multimeter will give you experience in what to look for when troubleshooting a "bad" power supply.
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                            • shovenose
                              Send Doge Memes
                              • Aug 2010
                              • 6575
                              • USA

                              #34
                              Re: Flipped the power switch on my psu and spark on mobo

                              Ewww. Allied is total crap. Go for a good psu, like antec, seasonic, enermax, nzxt, and stuff like that...What type is the working psu from the oher system?

                              Comment

                              • Drew
                                Member
                                • Oct 2010
                                • 40

                                #35
                                Re: Flipped the power switch on my psu and spark on mobo

                                Originally posted by retiredcaps
                                I totally agree. When I received the power supply with the whine, I asked the owner when did the whine start.

                                He said the whine was present for a few months. All that time, the computer/motherboard worked, but who knows how much overvoltage was on the 5V STBY before the power supply finally killed the motherboard.

                                So if the owner stopped using the computer when the whine first started, we might have been able to spot the bad capacitors BEFORE it had time to cause damage.

                                Also, as an intern, measuring a "good" power supply with a multimeter will give you experience in what to look for when troubleshooting a "bad" power supply.
                                Haha very true, now just to get a multimeter...

                                Comment

                                • Drew
                                  Member
                                  • Oct 2010
                                  • 40

                                  #36
                                  Re: Flipped the power switch on my psu and spark on mobo

                                  Originally posted by shovenose
                                  Ewww. Allied is total crap. Go for a good psu, like antec, seasonic, enermax, nzxt, and stuff like that...What type is the working psu from the oher system?
                                  The allied is the psu that works. The antecs smartpower 350 is the one that is presumed to be faulty. None of these parts have been purchased, they have come from my boss's house so I can't really be too picky about what I have available to me.

                                  Comment

                                  • shovenose
                                    Send Doge Memes
                                    • Aug 2010
                                    • 6575
                                    • USA

                                    #37
                                    Re: Flipped the power switch on my psu and spark on mobo

                                    Well then why dont you stick the allied onto that mobo and see if it works?

                                    Comment

                                    • Drew
                                      Member
                                      • Oct 2010
                                      • 40

                                      #38
                                      Re: Flipped the power switch on my psu and spark on mobo

                                      Ah yes, another question I would like to add along with confirmation of the diagnoses of this problem is how do you tell if your psu is on the fritz? Are there any tell-tale signs that I could recognize so that something like this doesn't happen again?

                                      Comment

                                      • seanc
                                        Badcaps Legend
                                        • Nov 2008
                                        • 1319

                                        #39
                                        Re: Flipped the power switch on my psu and spark on mobo

                                        Whining noises, buzzing noises, popping noises, funny smells, random instability of the PC such as blue screens or rebooting or failure to power on.

                                        Comment

                                        • Drew
                                          Member
                                          • Oct 2010
                                          • 40

                                          #40
                                          Re: Flipped the power switch on my psu and spark on mobo

                                          Originally posted by shovenose
                                          Well then why dont you stick the allied onto that mobo and see if it works?
                                          I hooked up the Allied psu to the 24 pin connector on the mobo and hooked up the psu to the 4 pin connector aswell, the green led on the mobo lit up. Seanc and Retiredcaps advised me to wait until I measure the voltage of the Allied psu before I go any further.

                                          Comment

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