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06-24-2002, 09:25 PM | #1 |
Cooling Savant
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ATX switch
does anybody know if an ATX switch is a momentary switch or toggle switch?
Last edited by tim-may; 06-24-2002 at 09:29 PM. |
06-24-2002, 11:24 PM | #2 |
Cooling Neophyte
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isnt atx a brand? well does it say normaly open?
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06-25-2002, 03:33 AM | #3 |
Thermophile
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atx is a form factor, which covers everything from cpu positions to how the power supply is turned on.
the atx power switch is a momentary switch
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06-25-2002, 06:55 AM | #4 |
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Actually, it's a toggle switch...
A momentary switch is a switch that acts much like a doorbell button: momentarily on. |
06-25-2002, 03:05 PM | #5 |
Cooling Savant
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thanx bigben. someobdy knows what im tlaking about...
im going to be wiring up an alternative power switch (key ignition) and it does both. i just needed to know which way to wire it up. thx again |
06-26-2002, 02:35 AM | #6 |
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I thought the atx switch was momentary?
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06-26-2002, 07:33 AM | #7 | |
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06-27-2002, 04:43 AM | #8 |
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how come the momentary switch I use in my case works just fine then?
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06-27-2002, 07:38 AM | #9 |
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You would have a momentary switch, if you have that type of connection to your PSU.
I use a Compaq computer here, and there's a momentary switch on it. I haven't opened it up (yet!) but I'm sure I'd find that it is connected to some little circuit board, either inside or outside the PSU, that activates a relay. I believe that the PSU we buy never come with that option though. As far as I know, they all have those 4 wires: white, black, brown and blue. The toggle switch links those to turn on the PSU. |
06-28-2002, 03:30 AM | #10 | |
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Quote:
That sounds like an AT psu
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06-28-2002, 11:11 AM | #11 |
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I have yet to see an ATX psu, so you might be right!!! I don't know.
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06-28-2002, 11:35 AM | #12 |
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ATX has generally two switches. One in the back on the psu itself, and one on the case in the front. The one on the back is a toggle to actually physically disconnect the power from the outlet to the psu. The other switch is a MOMENTARY pushbutton switch. It basically just shorts the 5vsb with a ground and powers up the psu. But, there is a catch, the motherboard will have to hold the psu in the on state by keeping the 5vsb shorted with ground.
so simply put, its a normally open momentary pushbutton switch.
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06-28-2002, 11:53 AM | #13 |
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Thanks for the clarification MetlMan! I hope that Tim-may can use it now!
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06-28-2002, 03:16 PM | #14 |
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I think he gave up on us about 3 days ago :P
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06-28-2002, 03:30 PM | #15 |
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nah, im still here.
just my stupid hotmail keeps thinking ATX is a bad word i just finished reading the thread, and i think i should have been more clear about my question. im talking about the one that you plug into the motherboard. its 2 wires (white and green). i know about the master switch on the back of the PSU but that doesnt turn on the computer. now the switch i have on the case i have on there now (which i want to replace) sounds like its a toggle (like a click on/click off sound) but it springs back like its a momentary switch. so which is it, momentary or toggle? |
06-28-2002, 11:08 PM | #16 |
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Momentary. Only connected when depressed. The Motherboard is in charge of telling the PSU when to turn on and turn off.
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06-29-2002, 03:49 AM | #17 |
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so....momentary (normally open) is the type of switch that turns on my comp?
are we sure now?:shrug: |
06-29-2002, 06:28 AM | #18 |
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Tim - yes thats a momentarily on switch
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07-03-2002, 02:58 PM | #19 | |
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Quote:
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07-03-2002, 03:17 PM | #20 | |
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07-03-2002, 03:21 PM | #21 |
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Mainly the big difference is the lack of a 3.3v line on an old AT PSU.
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07-09-2002, 06:05 AM | #22 |
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n00bs,, all of you i say,, especially you bigben2k j/k
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