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Old 05-02-2006, 12:55 PM   #1
Registered: Aug 2003
Location: Mallorca, Spain
Distribution: xubuntu
Posts: 551

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Power supply


I do not have another forum for this question. I am designing a ATX dc/dc power supply and I wonder about the 5 vsb (standby). Since I will not use standby can I disconnect this or should I conect it to the normal 5 v?

anyone. Thanks
Old 05-02-2006, 03:08 PM   #2
Registered: Oct 2005
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I sure as heck do not know the answer but I bet you at the people over at will know. Those people know a lot about hardware.

Last edited by brianthegreat; 05-02-2006 at 03:09 PM.
Old 05-02-2006, 03:57 PM   #3
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The +5 Volt standby is the signal that turns on the PC when you press the power on switch. This voltage is normally present when the computer is "off" and is seperate from the normal 5VDC line. The toggle switch on the back of the ATX power supply shuts this power off. Many motherboards have an LED that illuminates when this voltage is on. This voltage is also used for wake on xxx functions.

AFAIK you will need still need to provide this voltage even though your not going to use any standby functions.

Last edited by michaelk; 05-02-2006 at 04:02 PM.
Old 05-06-2006, 07:12 AM   #4
Registered: Aug 2003
Location: Mallorca, Spain
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Thanks michaelk. I learn something new every day.


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