This has always been an issue, you should completely stay away from sleep mode and just shut down the computer, i have not been able to figure this one out yet except people stating not to use the sleep or stand by function in windows, because of your exact flaw with voltages defaulting on the card, will look around bit more and get back to you.
Have you guys figured this out? I am in the same boat. I recently upgraded from an ati 5450, to an ati 6570. I am running a 6 core studio xps 7100, windows 7. Never had this issue until I upgraded the gpu. Still have the stock psu (460 watt) but it powers the graphics card enough for me to run games on high to ultra. Just when it goes to sleep, it wakes up "glitched out." Idk???
No, running stock voltage. I can play games on high all day long. Multi-task, download, everything. But after I wake up from sleep mode, everything sounds like it is running (fans are all on, led's, even fan on gpu), but the output to the monitor looks almost like a freeze (extremely distorted). I've tried unplugging my hdmi cable and plugging it back in after sleep mode but that doesn't do the trick either. Maybe I need a bigger psu? Maybe when it goes to sleep, the gpu isn't getting a constant supply of the necessary power? I have turned my sleep mode off for now and have been shutting the computer down instead of sleep. I will continue to search for the answers to both our questions as well.
Heres an idea, not sure if this is possible but go into the advanced power settings in windows 7 under power options scroll down to the PCI-Express expand window there is a setting for moderate power saving, change the default state to "off" this will guarantee the GRA is getting full voltage load while even in its sleep state. If you are not sure i can post an image to show you where to go let me know.
Ok, we're getting somewhere... I switched my power mode to "high performance." From there, I did as you stated changing the value to off under the pci-expansion area. It still won't recover from sleep mode correctly, BUT, it will recover from "hibernate mode" (you know when the computer wakes up and says "resuming windows"). That I can live with. I always turn off my computer anyway, so I'm not extremely worried about it. Is it okay for the computer to be ran in "high performance" all the time? Will that shorten the life of the components? Anyway, thanks a million Pilk. Now to finish Dead Space 2 on high graphics with my new video card! Woo-Woo!
LOL Awesome, Dead Space 2 FTW! Did you change all of your settings to high performance? When it goes into hibernate it will reduce the voltages into an idles state and even switch off certain components, the only item that will get concurrent voltage will be you Card no this shouldn't shorten lifespan issues amongst your parts all its done is add an extra 7.5V to the Pci card lane as far as i am aware, might be wrong there. One other thing go back into those advanced settings and change your hard drive state to never go into sleep mode or switch off. That will make your waking times a lot quicker and more responsive, might even fix the other issue as well
LOL Tri tat is true sleep mode throughout all the windows versions have given issues with conflicting hardware. So the power saving on the card did not solve anything at all? I will look more into it and get back to you.