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Power supply - ATX or not? (Using Everest)

Last response: in Motherboards
November 8, 2009 2:12:43 PM

Hello Everybody:

I just came across with a new issue that has to do with my dad's computer, it runs an XP operation system, and in generally the system itself is weak.

Is there any chance to find out whether the power supply is ATX or not using the Everest software?

In the sensor tab, the voltage values are:

CPU Core - 1.69V

+3.3V - 3.29V

+5V - 5.05V

+12V - 11.81V

If not, what are the marks on the PSU it self to find it out?

Thank you.
a c 435 V Motherboard
a b ) Power supply
November 9, 2009 10:36:22 PM

You need to list the specs; example-dell model number or motherboard model number, and what hardware you want to change. Your readings are dead on; within +/- 5% is fine. Go to and compare your dad's to some good examples from antec, corsair, ocz, seasonic, pc power and cooling, or enermax. None of these brands are cheap, so if you don't have the $$, I would leave the current power supply alone. 90% of desktops use atx ps; micro atx ps are significantly smaller, and you can tell just by looking at them.
a b V Motherboard
a b ) Power supply
November 9, 2009 11:34:08 PM

Everest can't tell you if it's an ATX PSU or not. The side label on the PSU doesn't allows tell you either.

Your voltages appear in line ATX.

Try measuring it. ATX is 2.1" width, 3.4" height, and typically 5.5" depth (can be a bit different here).

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November 10, 2009 12:28:15 PM

So, I can find out whether a PSU is ATX or not, only by measuring his size?
a b V Motherboard
a b ) Power supply
November 10, 2009 3:26:29 PM

The voltages are in line with ATX so that's the first clue. If the measurements correlate with the right size, you've hit a 2 for 2 test.
a b V Motherboard
November 10, 2009 3:37:06 PM

It looks like an ATX level system, if earlier than that the cpu core voltage would be much higher.
November 10, 2009 3:44:36 PM

so why the system doesn't shut down completely by software?