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#1
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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 |
#2
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Need help overclocking my gpu
PcGAmeR22 wrote:
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 900MHz @ 1.050 volts 900MHz # 1.037 volts http://www.overclock.net/t/787713/wo...e-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/n...he-200-king/18 Paul |
#3
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Need help overclocking my gpu
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 |
#4
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Need help overclocking my gpu
PcGAmeR22 wrote:
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 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/GeF...vs_voltage.gif ( http://www.techpowerup.com/reviews/N...TX_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 |
#5
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Need help overclocking my gpu
sounds very difficult ... i never knew overclocking was so hard |
#6
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Need help overclocking my gpu
hello mate i pushed the core voltage to 1025v ran oc scanner for 15 minutes on the following clocks core 940 shader 1880 memory 2030 fan speed 100 temps went up to 74 and didnt go above that number , is this okay ? [image: https://sphotos-b.xx.fbcdn.net/hphot...4196033_o.jpg] |
#7
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Need help overclocking my gpu
PcGAmeR22 wrote:
hello mate i pushed the core voltage to 1025v ran oc scanner for 15 minutes on the following clocks core 940 shader 1880 memory 2030 fan speed 100 temps went up to 74 and didnt go above that number , is this okay ? [image: https://sphotos-b.xx.fbcdn.net/hphot...4196033_o.jpg] You got more than 900, so you're doing pretty good. Time to test it on some real games, to make sure it's stable. Paul |
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