walmartshopper Posted July 13, 2006 Posted July 13, 2006 I went to radio shack and got a 0.22uF capacitor to fix the switch bounce problem: "Switch bounce" occurs when the PSU has trouble latching into the PS_ON# state as dictated by the ATX 12V 2.X specification. The internal circuitry should allow for a certain amount of oscillation in the "start circuit". If this isn't accounted for, the PSU will attempt to start then shutdown. It has been determined that the addition of a 0.22uF capacitor across the start circuit can smooth out the oscillation and allow the PSU to start properly. The capacitor can be added anywhere on the start circuit from the case front panel all the way to the inside of the PSU. So I soldered the cap onto the start circuit, and now the power button on the case does not work anymore. The power button on the mobo does work, and it did solve the problem of the PSU starting then shutting down. So I solved one problem but created a new one. The directions said "anywhere on the start circuit," so I put it on the red wire coming out of the case's power button. Was this a bad place to put it? I have a feeling it was supposed to be on the other side of the power switch. Quote Share this post Link to post Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.