+12V Reading

[maorgr]

Hi,

Does the following +12v reading, during a OCCT stress test, is any indication to a faulty PSU?

Thanks in advance.

 

[Martin]

11.6 V is still tolerable but on the edge, below 11.5 it could be a problem. But if you're having stability issues you might consider upgrading the PSU.

 

[maorgr]

11.6 V is still tolerable but on the edge, below 11.5 it could be a problem. But if you're having stability issues you might consider upgrading the PSU.

Hi Martin,

Thanks for responding.

This only happens during stress tests....at idle it's 11.9 / 12v

 

[Martin]

Of course, only under load the voltage drops depending on PSU capability.

 

[maorgr]

Of course, only under load the voltage drops depending on PSU capability.

Thanks.. It's a Corsair HX1200. Would you have replaced it ? if so, which 1200w would you recommend ? (for a 14900KS + 4090 apex encore machine)

 

[VictorVG]

maorgr​

Martin​

The AT/ATX standards set permissible limits of deviations of the output voltages of the channels at the current load from zero to the nominal value of the load current for circuits with a voltage of up to 5V inclusive - 5%, for circuits with a voltage of 12V and above 10% of the nominal value of the voltage of the circuit.

maorgr​

Rather, the problem in the channel stabilizer +12V. Take the KSA Power Supply Calculator WorkStation program (https://ksa-soft.ru/soft/10-KSA-power-SUPPLY-Calculator-workstation.html, requires .NET 4, the program is free, the GUI language is Russian, uses one executable The module, in the OS does not litter) and look with your equipment which power supply he needs.

Or give me a configuration of the machine taking into account all fans and other consumers. And then we will see what the reason is, although I assume that your PSU as a minium needs adjustment and most likely it is working, just the operating modes of its scheme are lost and they need to be adjusted, and only a specialist can do this using measuring instruments. It is simply dangerous for users to try to regulate PSU - a high voltage, at least 400V. It will hit the discharge - at best, get off with an electric shock, and if the current goes through the heart this death. If the discharge with a voltage of 12V and the current strength of 0.015A will go through the heart (left side of the body) a person will die. And this can happen if there are cuts, wet hands on the skin, and if a person drank at least a little, he better not have things to do with electricity - the skin resistance from about 200000 - 300000 ohms is reduced to 100 - 150 ohms. Any electrician knows this, but it is better to know that the electricity is dangerous and to be with him on "You" than to poke your fingers in a socket hoping that you are an insulator and you will not hit you ...