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Huge Range for Voltages?

Last response: in CPUs
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December 20, 2009 6:39:14 PM

I have a GA-P55A-UD3, 860, 4890 and a FSP FX700-GLN 700W power supply. I had some trouble getting my computer to work today because of a "Power Error" (via post beeps). When I finally got it working, I ran the Everest Stability Test. Here are the voltage results after 10 minutes. These voltages seem strange. Is there anything to worry about?

..................Min...........Max.............Average
CPU Core....1.14..........1.18............1.17
+3.3V.........3.34..........3.36............3.35
+5V............4.95..........4.97.............4.96
+12V..........4.16..........16.13...........8.21

Check out the +12V.

More about : huge range voltages

a c 213 à CPUs
a c 286 ) Power supply
December 20, 2009 7:09:30 PM

If that 12V reading is true you need to get that PSU out of there ASAP! The power error post beep means that its likely true, if you continue trying to power it up you risk damage components in the system.
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a b à CPUs
a b ) Power supply
December 20, 2009 9:25:20 PM

The 4.16 and 16.13 volts for the +12 are invalid. That Does not mean that your PSU is good, Just means you need a better monitoring program (might try CPUID HWMonitor, Does not report my +12 P55 gigabyte board or try using the Hardware monitor in easytune 6 as it seems to report a corect value for the +12V)- Better still use a volt meter and measure. At 4.16, your video card and cpu would not funtion.

It is a good possibility that your PSU is not stable = it just that you can not go by INVALID readings.

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December 20, 2009 9:35:37 PM

yeah......nothing would be running at those voltages.....
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a b à CPUs
December 20, 2009 9:46:30 PM

GA-P55-UD4p and Everest is the only monitoring program that detects my 12v voltage correctly. HW monitor is totally wrong. Do you have the latest version of Everest ? I'm thinking there are problems because these m/b's are pretty new.
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December 20, 2009 10:30:58 PM

I've switched to my laptop now. If no hardware program is accurate, how is a sure way to tell if it's faulty? Is it safe to turn it on to test it? I don't have any meter.

Also, since installing my motherboard I've only been able to use 2GB of my RAM? Windows says "4GB (2GB usable), and my bios say one stick is not enabled. I can't find any options to enable it, I just thought that it may have something to do with this.
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December 21, 2009 3:00:06 AM

I just tried HW Monitor and it produced even more false results. They were around 1.2V. What is a sure fire way to check it?
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a c 213 à CPUs
a c 286 ) Power supply
December 21, 2009 3:21:50 AM

Check the voltage readings in bios, its the only accurate software way to check that i have found. The most surefire way to check though is to use a digital multimeter and backprobe the ATX connector.
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December 21, 2009 4:39:06 AM

In the bios it said the +12V is at 12.365V. But I've heard that it needs to be under load to determine the true range of it. Is that true? Does that mean that the power supply is fine?
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a b à CPUs
December 21, 2009 1:56:18 PM

use a digital multimeter, check the voltage manually
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a b à CPUs
a b ) Power supply
December 21, 2009 10:27:47 PM

Gigabyte has a utility - easytune6. Intsall and run, it has a tab for hardware monitoring and it displays the +12V correctly. Once you have it install, right click the ICON and open with admin. This will put it in your task bar (lower Rt corner).

Run prime 95 for a load.
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