AX850 +5v line down

[keteflips]

Hello.

 

I bought a Corsair AX850, but the 5v line is low.

If I measure with a professional tester in the HDD/CD conectors the PSU line is correct but in the BIOS and software are TOO low.

 

http://img.photobucket.com/albums/v283/keteflips/EVGA%20X58/th_P1010767.jpg

http://img.photobucket.com/albums/v283/keteflips/EVGA%20X58/th_P1010766.jpg

http://img.photobucket.com/albums/v283/keteflips/EVGA%20X58/th_ScreenShot001-2.jpg

 

¿How I can get this values from the PSU with my tester?

 

Thanks.

[RAM GUY]

BIOS and software readings are generally inaccurate. The reading you are getting from the volt meter is the only one that matters and it looks like its within the 5% ATX spec.

[keteflips]

This PSU have problems, the voltages aren't normal.

Now I have the +5 line at 4.75v under load, and I test my system with a cheap Tacens Valeo II 700W, and I get 4.92v in the 5v line.

 

This PSU need an RMA.

 

Corsair AX850 under load (linx)

 

http://img.photobucket.com/albums/v283/keteflips/th_ScreenShot002-2.jpg

 

Valeo II 700w under load (linx)

 

http://img.photobucket.com/albums/v283/keteflips/th_ScreenShot003-1.jpg

 

Its a joke :(

I dont buy a High end PSU to get this bad voltages.

[Yellowbeard]

BIOS and software readings are generally inaccurate. The reading you are getting from the volt meter is the only one that matters and it looks like its within the 5% ATX spec.

 

What RAM GUY is trying to tell you is that you cannot read PSU voltages accurately with software.

 

Hello.

 

I bought a Corsair AX850, but the 5v line is low.

If I measure with a professional tester in the HDD/CD conectors the PSU line is correct but in the BIOS and software are TOO low..

 

:confused: Why would trust cheap software over a meter? :confused:

[Wired]

To reiterate, TRUST THE PHYSICAL TESTER, NOT THE SOFTWARE. Checking via software or even the BIOS adds a 2nd point of potential fault into the equation, namely the motherboard itself.

[keteflips]

The PSU have deferents rails, I take de voltages from the HDD/CD rails, but I cant take the values from the other rails because the PSU its connected to the mobo...

 

How I can get the values from the 24 pins connectors when its connected?

 

Sorry for my english, I cant expresse my self correct in english.

 

Thanks.

[Yellowbeard]

If I measure with a professional tester in the HDD/CD conectors the PSU line is correct but in the BIOS and software are TOO low.

 

http://img.photobucket.com/albums/v283/keteflips/EVGA%20X58/th_P1010766.jpg

 

Your 5v is perfect.

[keteflips]

Hello.

 

Finally I managed to do, but I expected a little more cooperation from the tecnical support O_o

 

I put heat shrink and tape on my tester pins to accommodate a pin. I take the values of the PSU connected to the MOBO.

 

The values are correct: 4.96~4.97v under load and 4.98~4.99v idle.

So the problem is the motherboard.

 

http://img.photobucket.com/albums/v283/keteflips/Corsair%20test/th_P1010769.jpg

 

Thanks.

[Wired]

... but I expected a little more cooperation from the tecnical support O_o

What do you mean? Ram Guy responded 3 hours after you posted.

[Synthohol]

it has been said MANY times, software readings are almost completely unreliable. you never claimed to have any problems with your system at all, you only suspected a voltage issue. why would you think your motherboard has an issue? if it is stable then you are fine and do not need to be concerned about bad software readings.

trust the meter ONLY.

[keteflips]

I need to know if the voltage reading my MOBO is correct, because I have to make a good overclock.

 

My MOBO has checkpoints to read the vcore, RAM voltage, VTT core ... and I saw with the tester that VTTCore values are incorrect and a little random.

 

So I have to correct voltage reading software, and it's crazy to take all values with the tester, would be hard work.

 

Thanks for the help, now I know the source of my problems. :D:

Sorry if my words have been annoying at some point, I have not a good level of English may seem that I am rude or impolite to write in English. :(:

[RAM GUY]

I need to know if the voltage reading my MOBO is correct, because I have to make a good overclock.

 

My MOBO has checkpoints to read the vcore, RAM voltage, VTT core ... and I saw with the tester that VTTCore values are incorrect and a little random.

 

So I have to correct voltage reading software, and it's crazy to take all values with the tester, would be hard work.

 

Thanks for the help, now I know the source of my problems. :D:

Sorry if my words have been annoying at some point, I have not a good level of English may seem that I am rude or impolite to write in English. :(:

 

No problem at all. From what you posted I would not suspect that you have anything wrong with your PSU. The other voltages you list are regulated by the motherboard, not the PSU itself.