GTX 570 OC PROBLEM !!!!!!

[bytheway_r]

Yeah, should be perfectly fine at those volts.

[crovis]

Hi, what program did you use to measure the stock voltage? 0.977v is an unusual value.  And about overclocking, it is not advisable to raise the memory speed too much. There is a lot of people which fried their gtx 570, various brands but reference design, at 2200-2250Mhz memory
clock. Overclocking memory brings an insignificant gain in speed, and doesn't worth the risk.

[StrelokL94]

I used GPU-Z to see what the voltage is.

[crovis]

GPU-Z shows the VRM voltage, as i understood. Nvidia Inspector, or MSI Afterburner read the core voltage which sometime is different than showed in GPU-Z. Mine for example is 0.967v in GPU-Z and 0.975v in Nvidia Inspector. At this values Crysis crash to desktop in about 10 min.

[bytheway_r]

I have a 4870x2 and it reports correctly both in GPU-Z and RivaTuner ( this will report all info the card is willing to give on temperatures and voltage/current ).

I'll agree on memory overclocking. Not sure about the GTX 570 but on my card there's little performance gain while there's a huge increase in power consumption and heat. When you take into account that it's the memory that dies most often on graphic cards it's best to overclock it only a little.

[StrelokL94]

Yes it is different, GPU-Z shows 1.039v max and MSI Afterburner shows 1.05v max voltage.

[crovis]

It might be useful   to read this:
http://www.overclock.net/nvidia/929152-have-you-killed-570-a-56.html
Someone killed his GTX 570 OC Windforce at factory voltage 1.000V. Just running Furmark for 3 minutes at 850/1700/2250 Mhz. The whole thread is about people who unintentional destroyed their gtx 570, and how they do that. The fact is that: there are not enough VRM to handle a high overclocking and overvolting on the reference PCB, and it's possible that a combination of high voltage + over 2200Mhz memory clock to be the right formula for burning one or two regulator modules.

[StrelokL94]

Is 59c-67c on load a safe temp?

[Dark Mantis]

Yes definitely!

[elysion]

GPU-Z shows the VRM voltage, as i understood. Nvidia Inspector, or MSI Afterburner read the core voltage which sometime is different than showed in GPU-Z. Mine for example is 0.967v in GPU-Z and 0.975v in Nvidia Inspector. At this values Crysis crash to desktop in about 10 min.

so which one should be recommended the .967 or .975. im running stock clocks and it crashes with .963 after some hours playing..

thanks

[Dark Mantis]

Well I would say the best thing is to set it to 0.967 and then check that GPU-Z agrees that it is that voltage.

[crovis]

Your 0.963v is the voltage which your GPU draws from the circuit. Mine, measured with Nvidia Inspector, is 0.975v. VRM voltage (Voltage Regulator Modules), in my case is 0.967v (showed in GPU-Z).
You cannot raise the voltage at 0.967V because it's the VRM voltage and it's not accesible directly via software. You can only manipulate the GPU voltage with an increment of 0.012v, or 0.013v, so 0.963v+0.012v=0.975v, 0.975+0.013=0.988v and so on. Anyway raising the GPU voltage will raise the VRM voltage too.

Some options you may want to consider:
- update the bios. This sets the GPU voltage in 3D mode to 1.013v which will boost the temperature by 3 to 5 degrees Celsius and it's possible to increase the stress of your card.

- downclock, not necessary to non overclocked default but to 750, or 760Mhz. It's what i did and i've managed to keep it stable at 770Mhz using the 270.61 drivers.
 
- try to RMA. It seems the processors used for the new GTX 570 OC Windforce batches, are selected from those which default operating at 1.005v or 1,013v. So, no more crashing.

- or you can raise the voltage, first at 0.975v, test it, see if it works, if not raise it at 0.988v. This should be enough. Remember, overvolting is risky and it's your choice to do it or not. I don't know if it will affect your warranty.

 

[elysion]

hi mate
i tested with Nvidia Inspector and it shows 0.975v, i have done that with MSI before but Nvidia Inspector looks better i think.

my stock voltage for the OC model shows 1.038v but that's seems very high, so I still went to .975 for the performance P2 mode in nvidia inspector but the system crashes, even if i go to .963 or 0.988 it does not matter, it crashed, i guess it has nothing to do with drivers right, maybe i reinstall the 266 driver rather than the 270?
i flashed the bios with the one from the website to download, no luck as above mentioned it shows me 1.038v as the stck

As i understand the VDDC is the VRM voltage controlled by the graphics card which adjusts the voltage depending on load, right?

please advice thanks for your help