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I have bought Acer V3-571G it has GeForce GT630.Games are running superb... but just for a 2-3 minutes until this card warms up. I have updated BIOS from 1.08 to 1.13 and the memory stopped throttling but the core does from 660mHz to 270mHz and everything works horrible. What can I do about it. This lowest result is during the game, it came back to middle 4xx mHz after I came back to dekstop, normal speed is 661,5 mHz. It makes graphics card useless.

It is common problem with Acer V3 the throttle temperature is set to too low value. enter image description here

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Gpu (and cpu for that matter) throttle for a variety of reasons. Most often it is because either the power was unplugged from the computer, or most likely in your case, if the temperature reaches a point that the computer feels is dangerous.

In the case of the temperature, try cleaning your vents. This happened to me before and after I cleaned all the lint and dust in the vents, it stopped throttleing

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It is common problem with Acer V3 the throttle temperature is set to too low value. – Robert Kilar Jan 12 at 2:41
It started in new laptop but just not in 3 minutes but like in 20. – Robert Kilar Jan 12 at 2:42

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