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A power supply can't be repaired.The replacement cost is probably about what a repair would run anyway,or less. Pick up a new one,and you also pick up a new warranty. Good or bad,please rate my post? Bob
The problem lies in the reduction of operational frequency. It is mainly caused during the loose of ferrite cores or failure of HV diodes across the primary coil. 1) Check the looseness of ferritte cores parts loose or fixed properly ? 2) If OK Just check the components parallel to the high voltage side of the big transformer. 3) Check low voltage schottky rectifier diodes. One must be shorted. Just remove and here the sound. If it disappears, it must be faulty. During this test, the output voltages may increase to three times also. So, to safeguard, disconnect the filter capacitors. Solution : 1) If any of the core becomes loose, just join it properly with epoxy or glue. 2 & 3) If any device fault occurs, just replace it in case of schottky rectifier diodes better replace with higher capacity. Capacity with numbers are given below : 1N5822 => 3 A F12C20=> 6A per channel total 12A MBR 20150 => 10A per channel. MBR 3035WT => 15A per channel
need fans on main cpu maby died replace with ball bearing blow all the dust out of it with big vac on blow ok and go nuts blowing dust out add hiend nice quilty fans mascool on newegg 10 pack 12 bucks free ship cheap nice need air flow getting to hot and power suplly cant keep up get nice dual rail one ok
Hi, all power supply's have a fuse in them, remove the power supply, open it up and study the printed circut board, you will see either a white ceramic or glass fuse attached to it. Replace this and reasemble it then re-install it into your computer and then test it. If you still have no power then you will have to replace the unit as the costs of repair are far greater than a new one.