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Voltage readings +12v, +5v (vcch) too low???? enermax liberty 620W

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February 11, 2010 12:28:33 PM

I'm looking at results of HW Monitor and my +12v (seems crazy), and my +5 (vcch) seem out of wack, this power supply is about 3 years old? Enermax liberty 620W, anything else look out of wack to you guys????


Hardware monitor ITE IT87
Voltage 0 0.91 Volts [0x39] (CPU VCORE)
Voltage 1 1.66 Volts [0x68] (VIN1)
Voltage 2 3.38 Volts [0xD3] (+3.3V)
Voltage 3 5.11 Volts [0xBE] (+5V)
Voltage 4 1.34 Volts [0x15] (+12V)
Voltage 5 -12.29 Volts [0xC0] (-12V)
Voltage 7 3.66 Volts [0x88] (+5V VCCH)
Voltage 8 3.17 Volts [0xC6] (VBAT)
Temperature 0 36°C (96°F) [0x24] (TMPIN0)
Temperature 1 25°C (76°F) [0x19] (TMPIN1)
Temperature 2 37°C (98°F) [0x25] (TMPIN2)
Fan 0 1722 RPM [0x188] (FANIN0)
Fan 2 948 RPM [0x2C8] (FANIN2)
February 11, 2010 12:52:18 PM

Have you tried Everest? Those do seem whacky
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a c 243 ) Power supply
February 11, 2010 12:53:14 PM

1.34 on the 12v ? You wouldn't be able to read the HWM numbers because the system wouldn't boot.
Get a DMM and check voltages.
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February 11, 2010 12:59:48 PM

My thoughts too, and is why I think Everest may help, as it may give better/truer results
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February 11, 2010 1:11:25 PM

delluser1 said:
1.34 on the 12v ? You wouldn't be able to read the HWM numbers because the system wouldn't boot.
Get a DMM and check voltages.



The mobo monitor says the +12v rail is at 12.048. There is no mention of a -12v rail.
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February 11, 2010 1:20:20 PM

JAYDEEJOHN said:
My thoughts too, and is why I think Everest may help, as it may give better/truer results



I downloaded everest and it is virtually reporting the same readings, for +12v in windows, however, when I look at mobo bios +12v is reported as 12.048? Everest also reported it recognize mobo, this is gigabtye ud4p-A , relatively new mobo release, I think they came out a few weeks ago, same as ud4p but includes sata 6.0 and usb 3.0 support.
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a c 243 ) Power supply
February 11, 2010 1:20:39 PM

acadia11 said:
The mobo monitor says the +12v rail is at 12.048. There is no mention of a -12v rail.

I'd trust that more than any third party software, the -12v isn't important, don't worry that it's not there.
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February 11, 2010 1:34:03 PM

delluser1 said:
I'd trust that more than any third party software, the -12v isn't important, don't worry that it's not there.


Hmmmm ... I guess, yeah, otherwise system wouldn't boot right. The thing that's really getting me, is I have been getting random shutdowns and reboots, I don have 5770 graphics card and am experiencing the infamous grey screen lock up and reboot. The reboots seem to happen when the cycles of cpu are spinning especially high, I was thinking maybe it was temperature or something, or some problem with system health, nothing is overclocked on the system right now. So, I'm at a loss.

It has to be related to some component being stressed because it only happens when lot's of processing going on, well it doesn't even have to be that much. I checked cpu temperatures and they are anywhere from 47-51 at idle. Is there a cpu stress test program ???? Maybe I can get it to do it and check temperature.
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a c 243 ) Power supply
February 11, 2010 1:40:52 PM

Prime95 or OCCT, Google them.
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February 11, 2010 1:41:50 PM

Thats some high idle temps
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February 11, 2010 1:43:07 PM

delluser1 said:
Prime95 or OCCT, Google them.



Ah ok ... remember prime, it's all coming back to me, I havne't built a new system in like 7 years literally.Thanks :) 
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February 11, 2010 2:53:10 PM

delluser1 said:
Prime95 or OCCT, Google them.



Dayum it just got hot in my room!!!!!!!!!!!!!!!!!!!!!!!!!


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March 7, 2010 11:11:22 PM

sorry for the late highjack reply

but did you find the problem ? I too have a new gigabyte MB and have the exact same reading for the +12 V. I thought at first that my PSU was underpowered and needed an upgrade but it has not fixed the issue with both everest, HW and speedfan all reporting the same 1.34 V at +12 V. the BIOS reading shows as over 12V there just not when it gets into Windows.

I am running a GTX275 for the GFX card.
Someone suggested that it could have something to do with the GFX card ?? But I am not sure

My issue is that when gaming it will sometimes freeze in game and completly lock up - I find that if i go to task manager and then double click on the program that has forzen it will go back to it and start working again - but is laggy for a while.

Just seems weird that we are reporting the same Voltage problem on this - So if you found the cure it would be great to know
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a c 144 ) Power supply
a b C Monitor
March 7, 2010 11:23:56 PM

Like they said earlier, if the 12 volt rail were really 1.34 volts, the system would not boot. The BIOS reads the correct voltage. A meter would read the correct voltage. The Windows based monitoring programs are supposed to get the voltage readings from the same place the BIOS does.

If you have a new motherboard, it's possible that the hardware monitoring programs have not been updated to work with the new boards.

The -12 volt output is mostly used in just two places - the RS232 port and the onboard analog audio. If your onboard audio works, you have the -12 volts present, regardless what any voltage monitoring program says.

This problem has nothing to do with any working video card.
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March 8, 2010 6:10:27 PM

yeah it gives me a reading on the -12V. Yesterday it was reading at 2.7 V on the +12V.

I am just trying to find out why the game has started freezing now when it never used before.

weird
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August 7, 2010 4:17:20 PM

I've got MA770T-UD3P rev 1.0 from Gigabyte. I have changed my PSU from Bequiet E6 500 W to E7 500W and I also have strange readings at +5V VCCH. (like acadia11)

Hardware monitor ITE IT87
Voltage 0 1.26 Volts [0x4F] (CPU VCORE)
Voltage 1 1.71 Volts [0x6B] (VIN1)
Voltage 2 3.33 Volts [0xD0] (+3.3V)
Voltage 3 4.92 Volts [0xB7] (+5V)
Voltage 4 12.16 Volts [0xBE] (+12V)
Voltage 5 -5.70 Volts [0x59] (-12V)
Voltage 6 -13.31 Volts [0xD0] (-5V)
Voltage 7 3.74 Volts [0x8B] (+5V VCCH)
Voltage 8 3.17 Volts [0xC6] (VBAT)

I wonder if I should worry about it. I did some test with Prime and it was ok. However it still interests me why it is so low (3,74 V).
Is it to be measured probably on a USB port?
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a c 144 ) Power supply
a b C Monitor
August 7, 2010 6:35:17 PM

d1244, why did you resurrect a dead thread? You should have started your own.

VCCH is the same as the 5 volt standby output. You can verify with a dmm by measuring between the violet wire and chassis ground.
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