How to troubleshoot a dead psu?

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

    #1

    How to troubleshoot a dead psu?

    If i can get a free 600w ocz psu that is completely 100% dead (not even 5vsb), would it be worth trying to fix? What could go wrong?
  • kc8adu
    Super Moderator
    • Nov 2003
    • 8832
    • U.S.A!

    #2
    Re: How to troubleshoot a dead psu?

    free is good!
    might still be in warrenty too.
    if not its a way to learn.
    ocz has been very good to deal with on bad ram.

    Comment

    • G McAtasney
      New Member
      • Oct 2010
      • 1

      #3
      Re: How to troubleshoot a dead psu?

      You could start with the fuse,usually the first casualty,and chase it down the line after that----diodes,electrolytics,etc.,If you've got the time you'll get the experience.An AVOmeter is the basic requirement and if all else fails you'll have a supply of spares:

      Comment

      • Th3_uN1Qu3
        Believe in
        • Jul 2010
        • 6031
        • Romania

        #4
        Re: How to troubleshoot a dead psu?

        Whenever i see 5vsb missing i usually just scavenge it for parts. But for this one, it might actually be worth trying to fix it.
        Originally posted by PeteS in CA
        Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
        A working TV? How boring!

        Comment

        • everell
          Badcaps Legend
          • Jan 2009
          • 1514
          • USA

          #5
          Re: How to troubleshoot a dead psu?

          If 5vsb is missing, it is an easy fix

          If 5vsb circuit has pwm chip, the circuit is easy to fix.

          If 5vsb circuit has 2 transistor circuit, it is easy to replace!

          Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11)

          Comment

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

            #6
            Re: How to troubleshoot a dead psu?

            Its a ocz stealthxstream i think. It looks like the one in the oicture at neweg. But its been discountinued. I can see why. Most of the reviews: it died within a month

            Comment

            • 370forlife
              Large Marge
              • Aug 2008
              • 3112
              • United States

              #7
              Re: How to troubleshoot a dead psu?

              FSP quality!

              Comment

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

                #8
                Re: How to troubleshoot a dead psu?

                yah people love to say "oh fsp is really high quality" but besides their 300w models (which they unfortunateyl made like 20 diff versions of, i think theyre shoddy. jonnyguru has a couple that came doa because the fan wires were soldered to the wrong point on the mobo. the 2nd one did too!
                so the ocz power supplies are made by fsp. that explains a lot. when i get it home (probably friday) i will post pics and model info and test it more thoroughly...does anybody know what goes wrong with these power supplies? i thought ocz was at least decent?

                Comment

                • momaka
                  master hoarder
                  • May 2008
                  • 12170
                  • Bulgaria

                  #9
                  Re: How to troubleshoot a dead psu?

                  Originally posted by everell
                  If 5vsb is missing, it is an easy fix
                  If 5vsb circuit has pwm chip, the circuit is easy to fix.
                  +1
                  Just fixed a 250W HiPro PSU last week with a TOP switch design for 5vsb. It had a shorted diode that supplied auxiliary power to the PWM controller. It actually took me longer to look through my bags of scrap parts and decide on a suitable replacement than to diagnose the problem.
                  ....
                  @ Shovenose: for starters, measure 5vsb voltage with your multimeter. Is it completely dead (0v) or is there some small residual voltage present?
                  Either way, open up the PSU and get some pictures. Or else be prepared to see the "this thread is worthless without pictures" smileys .

                  Comment

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

                    #10
                    Re: How to troubleshoot a dead psu?

                    i did say it might take a few days!

                    Comment

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

                      #11
                      Re: How to troubleshoot a dead psu?

                      review:
                      http://www.hardwaresecrets.com/article/451

                      Comment

                      • BigTroll
                        Badcaps Legend
                        • Sep 2010
                        • 1317
                        • LAMBDA SOND

                        #12
                        Re: How to troubleshoot a dead psu?

                        i have a 600watt stealth extreme, runs nice and cool, it doesn't get used much though, and yes the newegg reviews scared me. anyways i would go and try and RMA it
                        My Computer: AMD Ryzen 9 3900X, Asrock X370 Killer SLI/AC, 32GB G.SKILL TRIDENT Z RGB DDR4 3200, 500GB WD Black NVME and 2TB Toshiba HD,Geforce RTX 3080 FOUNDERS Edition, In-Win 303 White, EVGA SuperNova 750 G3, Windows 10 Pro

                        Comment

                        • 370forlife
                          Large Marge
                          • Aug 2008
                          • 3112
                          • United States

                          #13
                          Re: How to troubleshoot a dead psu?

                          At least that one has pretty good regulation and well controlled ripple.

                          Comment

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