12v 42A GPU vs a 12v1 18A PSU

May 25, 2018
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I have just bought a GPU which is recommended to have a 12v 42A current on a PSU and a minimum of 500w total power.

now I have a 500w PSU which has 12V1 18A and 12V2 18A

I did have some problems in the beginning my computer was showing a error message about "over current have been detected on your usb device". I took the mouse, keyboard and headset and put them in a USB2.0 ports instead of 3.0 ports and it seemed to work. I don't feel like the system itself is unstable at all, I also disconnected 1 fan and one HDD just to be "safe".

I hope I am safe until I get a newer PSU, which does need to be upgraded anyway..

Although I am still wondering if this is not healthy for any of my components on my system.

Thank you in advance.
 
Solution


I can't speak to the other problems you are having, but a PSU with those +12v rail specs is not suitable for the GTX 1060 6GB at anything but when the card is idle. I wouldn't game on it until you get a better PSU. Even a good quality 400W will work with that gfx card.
And it is possible that the resultant voltage drop at the +12v rail with that PSU is causing problems that might be the cause of your errors.

clutchc

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I can't speak to the other problems you are having, but a PSU with those +12v rail specs is not suitable for the GTX 1060 6GB at anything but when the card is idle. I wouldn't game on it until you get a better PSU. Even a good quality 400W will work with that gfx card.
And it is possible that the resultant voltage drop at the +12v rail with that PSU is causing problems that might be the cause of your errors.
 
Solution

clutchc

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Ambassador


It may crash. It may overload the PSU resulting in shut downs, restarts, or worse; catastrophic failure of the PSU damaging the motherboard. Fortunately, PUBG is a not a graphically intense game. So I doubt the card is at 100% usage very often, if at all.