Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [atx]

ATX is the standard for PC power supplies. It has +3.3 V, +5 V, and +12 V. They share a common ground. It has a PS_ON# signal which needs to be grounded to turn it on. Don't open power supplies that run on line voltage (AC). They have dangerous voltages and currents inside

It stands for "Advanced Technology eXtended". There are low-current -12 V and +5 V (called 5 Vsb) that are always on, even when the main supplies are off.

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Why is there a -12V rail for ATX

The ATX specification includes a -12V (and an optional -5V) rail on the main power connector. What are these negative voltage rail used for on the connected circuits?
Zulan
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Convert the input of an ATX power supply from 110 V AC to 11-14 V DC

I was just wondering if it is possible to convert an old ATX power supply for my server. It feeds with 110 V AC from the grid, but I want to operate my mainboard directly from the solar battery, which has 11 to 14 V DC. Could this be theoretically…
otmezger
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Is there a safe way to get 12 V power from an ATX power supply when the computer is turned off?

I have some LED stripes to illuminate my workspace. Since I have nothing else at hand, I connected it to the 12V rail of my PSU in my computer. This works very well when the computer is turned on, but I would like to be able to use the lights also…
stebu92
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female 6 pin pcie power plug?

i am looking for a datasheet, or ideally an eagle library, that has a female 6 pin pcie power plug, like this: as easy as it seems, i cannot seem to find ANYTHING online.
parzival
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Connecting two atx power supplies in series

My problem is I've bought a 3d printer from china. As usual with consumer electronics the psu is a heap of shit. I've read on forums you can connect two atx supplies in series to generate 24v instead of 12. HOwever they say you must cut the earth…
Ageis
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Converting ATX PSU to lab bench PSU

I am currently trying to convert my ATX PSU to lab bench PSU. But I ran into a problem. I want to attach a dummy load, but I am not sure if I should use 12V or 5V. On label it says that +5V .. 21A +5V sb .. 2A +12V cpu .. 15A +12V a .. 10A +12v b…
Bazilion
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ATX PSU With only +5VSB output

I am searching some thread about but i don't find it. 3 days ago. My ATX power supply has burn by overheat. Thermaltake TR2 600W. it has a OTP and even with that it hasn't turned off. Blown by overheat. But aside that. What i am intrigued is, WHY…
Kirlian Kitzinger D'Avila
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An "standard computer power supply"

I'm trying to use an ATX connector. https://www.sparkfun.com/products/9498?gclid=CjwKEAiAjsunBRCy3LSlz_PJqCgSJACJY7yKBmbtZzitS08I2EKyfFqex4UVlCzSfHP8GdYK2TNvChoCrkPw_wcB In the product description, it says, "Pair this connector with a standard…
David Roberts
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