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5150 Power Supply powers up, runs floppy drive and hard drive but fan doesn't spin.

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    5150 Power Supply powers up, runs floppy drive and hard drive but fan doesn't spin.

    5150 Power Supply powers up, runs floppy drive and hard drive but fan doesn't spin.

    Dangers?

    EDIT: I've found my Torx screwdriver. Will open the case later. Looks like the fan is riveted on.
    Last edited by fjk61011; June 15, 2020, 02:47 AM.

    #2
    Overheating, Could be a dead fan or seized fan or power issue, Is it an AC or DC fan, Have you checked all output voltages under load, You'll need to open the PSU and investigate.

    Comment


      #3
      Originally posted by Malc View Post
      Overheating, Could be a dead fan or seized fan or power issue, Is it an AC or DC fan, Have you checked all output voltages under load, You'll need to open the PSU and investigate.
      Have the screws out. Trying to separate case now.

      Comment


        #4
        Ok, case open. It's a 220V AC fan.

        Comment


          #5
          OK, the fan is a metal thingy riveted to the case.

          Molex is Red Black Black Green. I have to remove the circuit board to get at the end of the cables.

          Comment


            #6
            Does the fan blades turn easily by finger, A good pic of the inside of the psu would be useful, Who's the manufacture of the PSU.

            Comment


              #7
              Originally posted by Malc View Post
              Does the fan blades turn easily by finger, A good pic of the inside of the psu would be useful, Who's the manufacture of the PSU.
              schrack elektronik. Fan spins but I think it is touching the housing.

              Comment


                #8
                I have another unit. Got all the screws out except one. It is a torx with a little pimple in the middle.

                Comment


                  #9
                  https://1drv.ms/u/s!ArGA_NSb_9YEldF8...xG7VQ?e=XnKPfM

                  Comment


                    #10
                    It's remarkably clean looking in those photos. In reality it looks it has forty years of dust in it.

                    Comment


                      #11
                      Ok, I've got the other power supply opened. It has a 12 V DC fan. I'll have to figure out how to connect the fan to the 12 V rail. All the wires are connected under the circuit board.

                      Comment


                        #12
                        Why don't you just swap PSU's ?

                        The first PSU in the Pics you posted is a 130W 5160 PSU, Easy enough to check if the fan is getting power, Set your DMM to AC range highest setting and probe the 2 pins you disconnected the 2 fan wires from with the PSU powered up, Be extremely careful not to slip or touch anything else with the psu powered up. The last time i looked these fans were still available.

                        Comment


                          #13
                          Originally posted by Malc View Post
                          Why don't you just swap PSU's ?

                          The first PSU in the Pics you posted is a 130W 5160 PSU, Easy enough to check if the fan is getting power, Set your DMM to AC range highest setting and probe the 2 pins you disconnected the 2 fan wires from with the PSU powered up, Be extremely careful not to slip or touch anything else with the psu powered up. The last time i looked these fans were still available.
                          have to go shopping now. i'll get back later

                          Comment


                            #14
                            I've got 3 psus. The one I'm trying to fix is 220V ac in. 130w. The other are 110v ac in. The 130w one is demised. Plugged it into our 220v mains. The magic smoke came out of it. The other 110v ac is only 63 watts. Ive a full height floppy drive and a full height hard drive in the 5150

                            Comment


                              #15
                              Originally posted by Malc View Post
                              Why don't you just swap PSU's ?

                              The first PSU in the Pics you posted is a 130W 5160 PSU, Easy enough to check if the fan is getting power, Set your DMM to AC range highest setting and probe the 2 pins you disconnected the 2 fan wires from with the PSU powered up, Be extremely careful not to slip or touch anything else with the psu powered up. The last time i looked these fans were still available.
                              There's 220 V AC across those two pins.

                              Comment

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