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|    sci.electronics.repair    |    Fixing electronic equipment    |    124,925 messages    |
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|    Message 124,898 of 124,925    |
|    Harvey Sanenbum to All    |
|    wiring up alternate desktop power switch    |
|    31 Jan 26 09:22:57    |
      From: harvey50120@micro.net              I have an old Dell XPS 420 desktop that wouldn't power on today. I had       a hunch that it might be the front power switch, so disconnected the       power from the motherboard and then located the green wire on the power       supply. However, much to my surprise, there were two green wires. When       I jumpered one to ground, nothing, but when jumpering the other, power       supply fan started up.              Before reconnecting power to the motherboard, I cut the green wire that       did work and temporarily extended it with a jumper wire. Power was       reconnected and the jumper wire to ground. The power supply started,       but it was only after I then pressed the front power button on the       desktop that it started right up. In fact, I'm sending this message       from it now.              I'm a little confused about the wiring and power switch type. The       switch must have only partially failed since it still works with the       aforementioned configuration. However, I think the option, to get       things back to normal, is to either replace it, which I think would be       next to impossible given the old age of the PC, or simply wire up a       toggle as a substitute, but not sure of the wiring.              Might it be as simple as snipping that additional green wire, splicing       both green wires together, and have that go to ground for start up/ turn       off, or is it something more? I almost think a temporary switch is       needed somewhere since the front power button is only depressed until       power up and then released.              trying to keep everything simple, but it seems a little complicated to       me. Thanks in advance for any help.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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