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Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/11 08:16 Hi all, firstly I want to say this is a great site. And now on my problem, I have overclocked my GeForce GTS 250 Green from 700/2000MHz to a higher 760/2300MHz pretty much stable and at full load it peaked at 72°C, and idles around 55°C. So my questions, what's the card's threshold? Also what is the highest anyone has been with such graphics card? I had my PCI Express turned up to 115MHz but heard bad stories about it and some good ones as well. Can someone help me clear that up also?

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Re:Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/11 09:54 First of all, you did have some nice overclocking and I believe much higher won't be that common. The main reason being that the GeForce GTS 250 Green edition is first of all an ecological product that was made to reduce the power consumption and most brands released it with lower clocks, which initially run at around 650MHz. Also the GeForce GTS 250 is actually a cheap version of the old GeForce 8800 GT and to do so quite some logics were removed such as fan speed control and voltage regulation. So these cards won't ever reach above 775MHz.

Related to the threshold in terms of temps, this is just the same as with almost any newer NVIDIA graphics chipset is about 105°C, but you really don't want to reach such a high temps with the GeForce GTS 250 graphics card. Around the PCI Express interface you will indeed find good and bad stories and the only reason why you should change it form the default speed is related to the stability. Sometimes a little high speed gives added stability.

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Re:Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/11 12:50 Say by the way how high should I go? Cause 115MHz is quiet high from what I have gathered and I need a bit of stability. But realized I made a fatal mistake, I started overclocking from both sides, meaning processor and memory and also the graphics card. That could be my stability issue, so I will tweak the card alone and drop all system ocverclocking and see how it goes. After I get the GPU stable I will post again.

By the way having the shader and core clock locked, can you shed some light on that for me please? Mine is locked so they both increase together. I'm not at my computer right now, but I'm sure the shader is around 1800MHz. Do you have any ideas on that, should they be locked or running them separately? Thanks again for the speedy response.

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Re:Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/11 21:00 Indeed if you started to overclock both the system and the graphics card at the same time that isn't a good idea and the PCI Express interface clock speed should normally be left at default or a little higher cause it won't give any boost. When you do overclocking via software the core and shader clock re locked together but through the BIOS you can set each individually. Take into account that the shader clock could lead to instabilities if set too high, all depends what the default settings are from which you start.

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Re:Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/12 17:15 Okay, I took my time and undid the processor overclocking etc, and started to work on the graphic card with RivaTuner and ATITool. Got her nice and stable at 760/2300Mhz withs shaders running at 1813MHz. Then turned up the processor again and voila, got the PCI Express interface at 105MHz and a word to the wise, I talk now from experience. Don't ever play with PCI Express settings unless forced to, it did cost me an entire Windows 7 install due to data corruption.

Luckily I had everything backed up. Anyways I'm satisfied for now. When I can afford a new card I will start experimenting again. I can't afford to cook this card in a hurry. Thanks for all the assistance, your site has always been a good and well for information.

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Re:Inno3D GeForce GTS 250 Green edition overclocking feasible? - 2010/02/12 21:52 SDragon wrote:
Luckily I had everything backed up. Anyways I'm satisfied for now. When I can afford a new card I will start experimenting again. I can't afford to cook this card in a hurry. Thanks for all the assistance, your site has always been a good and well for information.

You are welcome mate, and glad to see you learned something even though it was somehow the hard way by having that data corruption. Normally you should not really change the PCI Express interface clocking, cause overclocking your processor can now be done without having any impact on that. But it can be useful sometimes to just raise it a little bit when experiencing stability issues. Thanks for your input!

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