Voltage Doubt

wsarahan · 15 Oct 2012 at 20:07

Hi Guys

I have a little doubt, can someone help me?

Is it normal when you are running something that stress your pc and vga to have a little voltage drop?

Asking because i was running furmark and my 12v was about 12.096/ 12.046 and without streesing wa about 12.168

This happens with VGA too

I have 2 GTX 580 in SLI and the 12v is about 12.2 in each one and when it was running dropped to 12.1/12.09...

Thanks

RJC · 15 Oct 2012 at 20:23

What are you using to measure voltages and what is the make and model of the PSU being used.

wsarahan · 15 Oct 2012 at 20:24

RJC said:
What are you using to measure voltages and what is the make and model of the PSU being used.

My PSU is a CoolerMaster Silent Pro 1200w Gold

The programs i use is Aida64 and Gpuz for Vga

Thanks

RJC · 15 Oct 2012 at 20:27

PSU is ok, I dont trust software reading for voltages use a multimeter if possible to check.

wsarahan · 15 Oct 2012 at 20:29

RJC said:
PSU is ok, I dont trust software reading for voltages use a multimeter if possible to check.

I know

I`m asking because i`ve lost 2 mobos and 2 psus in about one year, my 24 pin MB and PSu fried, now i use the evga power boost to solve this issue, and i wanna know if it`s really working

But the little voltage drop is ok when playing a game os using more vga or cpu?

RJC · 15 Oct 2012 at 20:42

Your within the 5% drop which is the recommended max for the 12v line, not sure what else to suggest really

wsarahan · 15 Oct 2012 at 21:05

RJC said:
Your within the 5% drop which is the recommended max for the 12v line, not sure what else to suggest really

Sorry my english is not so good

So with this drop you mean that i`m ok right?

Tealc · 15 Oct 2012 at 21:08

Software voltage monitoring isn't anywhere near reliable enough. If you hook up a multimeter to a Molex or something you'll get a more true representation of your power rails.

james_2k · 15 Oct 2012 at 21:11

It's normal to drop.

RJC · 15 Oct 2012 at 21:12

wsarahan said:
Sorry my english is not so good

So with this drop you mean that i`m ok right?

Yes, looking at various reviews of PSU they show a slight decrease in voltage as the load increases.

But keep a eye on the voltages and if possible test / check with a multimeter, this will give the best reading.

daveyg · 15 Oct 2012 at 22:20

A digital multimeter is the only way to really test.

I've also got a thermaltake Dr Power which is great for jump starting the PSU without a paper clip. Works a but like a simple multimeter, you can plug stuff in and it will measure the voltage - no load though.