Need help overclocking my gpu

 
Hello folks

I am using a gtx 460 1gb v2 video card , default clocks are
Core Clock Speed    867MHz
RAMDAC Clock Speed    400MHz
Shader Clock    1734MHz
Memory Clock 2025 MHz
core voltage , msi after burner says 1000 mV
i am trying to achieve 980 or 1ghz for core clock if possible but a
friend told me i need to change the core voltages to achieve that clock


how much should i pick up the voltage

 PcGAmeR22 wrote:

900MHz @ 1.050 volts
900MHz # 1.037 volts

http://www.overclock.net/t/787713/woot-900mhz-core-with-gtx-460

According to this, if you push it too far, the VRM declares
a problem, and the clock falls back for protection. So getting
to 1GHz might be tough to do. 900MHz looks easier. And according
to this, not all the cards have adjustable GPU VID voltage.

http://www.anandtech.com/show/3809/nvidias-geforce-gtx-460-the-200-king/18

    Paul

 
so i need to push my volts up to 1050 volts ? and i can call it a day
and overclock to 900 mhz without crashing in some games

 PcGAmeR22 wrote:

You don't usually attack overclocking that way.

If the voltage is 1.000 now, you'd try bumping the frequency, to see
how far it will go with 1.000V.

Then, bump the control by the next voltage step. Repeat the tests
varying the frequency, until you get instability.

You proceed in small steps, to avoid big crashes. And by
doing it in small steps, you can make a graph on a piece
of paper. Making the graph, is to spot trends. For example,
if increasing the voltage, does not result in more frequency
range, then you've hit a "wall". And upon seeing that, there
is no point in trying to overclock further. You can then
turn the voltage down, to the point that the wall becomes
evident, and conclude that no further overclocking is worthwhile.

Looking at the graph, you can also extrapolate, and figure out
how much voltage it will take to get to a given frequency. The slope
of the graph, tells you where the card is headed.

You can see the slope of the line, in the plot here for a card. I
can predict using this graph, that I need 1.19V to reach 1120MHz.
That's an extrapolation.

http://tpucdn.com/reviews/NVIDIA/GeForce_GTX_680/images/clock_vs_voltage.gif

( http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_680/30.html  )

And when you're finished, you don't leave the settings "on the
edge of stability". You crank down the frequency a bit, so the
card will always be stable in the games you play. If you're playing
against other players on the Internet, it wouldn't be very convenient
if your video card crashed every five minutes and the game had
to be started up again. You want settings that you can actually
use for something.

    Paul

 
sounds very difficult ... i never knew overclocking was so hard