Just to chime in
 
I am using a EVGA GTX 670 and a Z77 motherboard from another vendor. I too cannot resume from S3. For me the system appears to come back up but the display remains off. I have also noticed that my USB keyboard is not active. On my previous system I had intermittent issues with waking from S3 where either the display wouldn't wake or the keyboard wouldn't wake.
 
I looked in the mobo BIOS for the Internal PLL Overvoltage setting but I don't have that - I have do have a CPU PLL setting in the voltages section which I assume is the same thing but there is not a  'disabled' option for this, only 'Auto' or specific values.
I am using the 302.xx driver set for Windows 8.

I did not have the resume from sleep problem until I installed the latest beta Nvidia driver 304.79. I installed the 301.42WHQL, 301.40 beta, and  304.48 beta and all resumed from sleep without a problem. 
 
 
System specs:
Motherboard: Asrock Z68 Extreme 7
CPU: i72600k
OS: Microsoft Windows 7 Ultimate 64Bit ( Service Pack 1 ) 
GPU: EVGA GTX670 4GB in SLI 
Monitor: Dell U2410 X 3 in surround 
HDD: Crucial M4 SSD 
 
 

I am having this same issue with a 670 and an 59 classified board. I am pretty disappointed that there still is not a viable solution to this problem months after the first post. Am I to believe that EVGA has given up on this issue? Having to leave my computer on all day is somewhat of a bother.
 
 

S3 sleep is not broken with any of the drivers I've tried with my gtx 680. After having such a diffcult time with the GTX 560ti, ie producing rainbow streaking desktop, green blankout youtube videos. display driver has stopped responding, etc
 
I'm just happy the GTX 680 is working like it should, at least for now.

EVGA_MatthewH

Can anyone having the issue with sleep please do the following:
Make the subject "680 sleep issue".
Model of motherboard:
BIOS version:
CPU:
Yes I have tried S1, S3, S1&S3:
What happens when you resume from sleep?:

This will help me reproduce the issue and work on it for you guys.

I have an EVGA GTX 670 also having a problem resuming from s3 sleep.
Motherboard EVGA 132-BL-E758
BIOS Version 83
CPU Core i7 920
OS Vista Ultimate 64bit
Driver Version 301.42
Chipset drivers version from EVGA 9.3.0.1019
I have an EVGA GTX 460FPB that works fine resuming from s3 sleep.
While I had the GTX 670 installed I tried the  three setting options in the bios: the 670 does not resume from s3 sleep with the BIOS set for s3 or s1&s3, however the 670 does resume from s1 sleep. To me, the s1 sleep is almost like keeping the computer on, so that is not an option for me. Trying to resume from s3 sleep with the 670 results in the fans starting and I assume everything else except video to my monitors which are not getting a signal.
 
Not being able to resume from s3 sleep is a real pain for me, so, I will continue to use the GTX 460 until a resolution for the 670 is issued.
 
I prefer the 670 if it would work, so,I'll wait for a while longer before requesting a RMA.
 
If there is any other troubleshooting I can do safely, please let me know.
 

Model of motherboard: EVGA x58 SLI, Part # 132-BL-E758-A1
BIOS version: 83
CPU: i7 920 @ 3.8 without HT, Prime95 stable
Yes I have tried S1, S3, S1&S3:
What happens when you resume from sleep?:  Computer restarts, gives "Recovered from error" screen. When I select "Start Windows normally", it shows the words "Starting Windows", but the windows logo never appears and windows does not actually start. I usually hit the restart button on my case, and it will boot fine. Usually cycles for a few seconds (can be up to like 20 seconds) through the little F8, F6, F3 repeat stage before hitting C1 and beeping, and actually booting.
 
btw I have a 670 FTW

Yeah that is a crap answer. If I had known that this card would not allow me to sleep my PC then I would never have upgraded from the 580 which worked just fine. I hope that is not the final answer to this problem and it can still be fixed with some sort of driver update. Unbelievable.

bump

Hi staff,
I installed v304.79-desktop-win8-win7-winvista-64bit-english-beta but still have problems resuming from S3 sleep.
My PC:
OS: Microsoft Windows 7 Ultimate 64Bit ( Service Pack 1 ) 
GPU: GTX680 
CPU: Intel Core i7-930 
MOB: EVGA X58 3X SLI Classified ( 141-BL-E760 / BIOS: E76083 ) 
RAM: 6GB

"If my HDMI monitor turns off, then it seemingly loses the monitor and will not come back. I have to physically unplug the monitor from the back of the GTX 680 and plug it back in for it to be recognized again. "
 
This and the sleep were the main problems i was having
 
OK!!!!!  so Good news! hopefully... lol so i dont know if this problem has been solved But if it has not been i found a solution that worked perfectly for me (hopefully i dont make a fool out of myself)
Alright so here is what i did;
 
all while hooked up to display using a VGA i uninstalled all drivers
 
reboot
 
installed latest beta drivers 304.79,
 
reboot,
 
then unplugged vga and plugged in HDMI
 
windows recognized the display as a second monitor and made it the primary
 
went to control panel and asked windows to detect a display and when it couldn't find the VGA connection, windows got rid of the original VGA display . So now i was left with just my HDMI connection
 
Then finally i went to the power settings within windows and told it to sleep my display after an amount of time. i put 1 min.
 
after waiting for my screen to go dark i powered off the display then powered back on... waited a few seconds...
1... 2... 3... 4... 5... moved mouse erratically!!!! and my GTX 680 came back to life
 
i then just set the sleep to whatever time i want and the GTX always come backs. oh yeah!
 
hopefully this helps
and again sorry for my horrible english its like 3 in the morning now... supertired....
good night everybody...
 
zzz ZZZ zzz ZZZ zzz
 
QUICK UPDATE!!!!!!!!!!!!!!! Just when i thought this was perfect... After Doing this your sound though the HDMI is disabled!!!! so if you use built in speakers just re-route audio through AUX, Optical, or someother way like external speakers. it is disabled because it tricks your card into thinking that your HDMI is a DVI... IDK why.  

Here is my request for the appropriate person at EVGA to give an update on having a resolution for this problem. I posted information about my problem with a GTX 670 and also sent the information to EVGA by e-mail. I've had no response.
 
Also, with NVIDIA's forum being down for an extended period of time, there is no information from their web site at all.
 
 

I'd like an update from an EVGA tech on this, it's been months now

I care...VERY upset it hasn't been fixed actually.

Guys all these sort of problems will get worse with new equipment trying to save more energy !
They have been around for a while, I used to have to use a "gefen dvi detector" on a media center so the gfx card would see the TV after S3 standby.
 
I currently run my media centre on VGA so If I have too many beers and miss the end of the movie it shuts the TV off :D
 
HDMI and Game port may be more problematic than conventional DVI or VGA for sure, there use to be software around that from a hot key could reload the display driver....anyone tried that ?
 
There are workarounds which I think you may have to look towards for a fix, even a fast SSD should get to windows desktop a couple of seconds slower than S3 resume after it's initialised network adapters etc..

EVGA: any progress on this issue?