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[Tom's]MSI Caught Overvolting GTX 660 Ti, 670 Power Edition Cards  

post #1 of 189
10/1/12 at 4:57pm
Thread Starter 
Quote:
Our colleagues over at Tom’s Hardware Germany seem to have caught MSI red handed, overvolting the GPUs on the GTX 660 Ti and GTX 670 Ti Power Edition boards (Google Translate) to achieve a higher and longer lasting GPU boost state by basically circumventing the PWM controller. In other words, MSI was cheating. Perhaps no one would ever have known if it hadn’t been for one side effect. The increased voltage can cause the system to refuse to POST.
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post #2 of 189
10/1/12 at 5:00pm
LAWL

tongue.gif See, there's nothing wrong with overvolting... just overvolting Kepler... because Enthusiasts love to save power... right?
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post #3 of 189
10/1/12 at 5:00pm
Thanks for share, but it looks you did a typo with GTX670 Ti.
post #4 of 189
10/1/12 at 5:01pm
Although the amount of volts being delivered is something to be concerned about, I wasn't aware that increasing the voltages to overclock a GPU was considered cheating.
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post #5 of 189
10/1/12 at 5:02pm
So the end result is that consumers should favor MSI because their cards are better for us but more of a pain for NV?
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post #6 of 189
10/1/12 at 5:05pm
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Quote:
Originally Posted by Alatar View Post

So the end result is that consumers should favor MSI because their cards are better for us but more of a pain for NV?

Sounds good to me.

If the system will not post then they did a pretty poor job implementing this voltage boost. applaud.gif
Why would these cards prevent your computer from booting?
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post #7 of 189
10/1/12 at 5:06pm
Thread Starter 
Quote:
Originally Posted by Alpha Predator View Post

Thanks for share, but it looks you did a typo with GTX670 Ti.
It's a quote from the article, I didn't write it rolleyes.gif
Quote:
Originally Posted by jivenjune View Post

Although the amount of volts being delivered is something to be concerned about, I wasn't aware that increasing the voltages to overclock a GPU was considered cheating.
The voltage controller gets up to 9.3V despite being specified for 5V, that is a problem. Another problem is that Nvidia has forbidden overvoltage of Kepler GPUs, this will probably backfire against MSI in some way.
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post #8 of 189
10/1/12 at 5:13pm
Quote:
In short, the PWM controller on said cards is overvolted by up to 88 percent using a small alteration to its power supply, which leads to the chip running way outside of its specifications...
Quote:
...instead of the 5 volts specified by Richtek, the chip is hit with up to 9.3 volts.

A lot of you probably don't care, but as someone who no longer overclocks his GPUs, I hope Nvidia comes down hard on MSI.

And to those of you obviously not reading the article, MSI is overvolting a PWM, not the core.
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post #9 of 189
10/1/12 at 5:16pm
Quote:
Originally Posted by MrLinky View Post

Quote:
In short, the PWM controller on said cards is overvolted by up to 88 percent using a small alteration to its power supply, which leads to the chip running way outside of its specifications...
Quote:
...instead of the 5 volts specified by Richtek, the chip is hit with up to 9.3 volts.

A lot of you probably don't care, but as someone who no longer overclocks his GPUs, I hope Nvidia comes down hard on MSI.

And to those of you obviously not reading the article, MSI is overvolting a PWM, not the core.

What could Nvidia possibly do to MSI?
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post #10 of 189
10/1/12 at 5:17pm
Quote:
In short, the PWM controller on said cards is overvolted by up to 88 percent using a small alteration to its power supply
Holy hell. Whoever thought sneaking this past nVidia would be a good idea is serious about overvolting.biggrin.gif
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