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[Help] Overclock Breaks Sleep?

post #1 of 4
Thread Starter 
Small problem I'm having OCN, wondering if you guys could help. I'm running a 3570K with an MSI Z77 GD65 motherboard and Windows 8, and I've been running it at 4.6GHz and 1.27 volts. Problem is, every time I dial in these settings, my sleep mode breaks. When I clear the CMOS and run at default settings, I am able to put my computer into S3 sleep and then resume. Then I go into the BIOS, set the multiplier to 46, and the voltage to 1.27, which I know is a stable setting, and then when I try to resume from sleep the PC hard freezes and has just a black screen. I'm thinking the problem might be that I have Internal PLL Overvoltage enabled, but if I try to disable that the PC doesn't boot at all. Also, I've tried running at all stock settings except for enabling the PLL overvoltage and sleep works just fine, so I'm not sure if that's the problem. I'm running the latest 10.8 BIOS, but I've tried other versions as well. Anyone have any suggestions?
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Midnight Smurf
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post #2 of 4
Sleep problems when overclocked is a known issue with Sandy/Ivy platform. Most people shut off all of the C-states (sometimes leaving C1E on) to prevent it. There are a handful of boards that support overvoltage on wake to help with this issue, I'm not sure how successful it is. If you've got an SSD, why use sleep at all?
post #3 of 4
There are known issues with sleep and Internal PLL Overvoltag, but I thought all the manufacturers had released BIOS updates to fix it (especially on Z77 boards). Is there a BIOS update available for your board? Can you run at 4.5 without Internal PLL Overvoltage? If so, that might be the best bet.

The C-states and power save features by themselves shouldn't cause any problems, unless there is something specific to your board.
Edited by Forceman - 1/31/13 at 10:37am
post #4 of 4
Thread Starter 
Now running at 4.5GHz with PLL overvoltage disabled and it seems to be working fine. I guess I'll have to give up the 100MHz, I like being able to put the computer to sleep.
Midnight Smurf
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Midnight Smurf
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XSPC EX280 Radiator XSPC Dual Bay D5 Pump/Res Phobya Xtreme 200mm Radiator Windows 8 Pro 64bit 
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