Computer freezes after waking from sleep (Windows 7)

HairyBob

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Apr 4, 2013
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The Problem: I recently upgraded my computer and did a clean install of Windows 7. Now, whenever I put my computer into sleep mode and wake it up, it freezes. When the computer is awaken, it displays the screen it should (my desktop), but everything is frozen. I then have to power my computer off and back on to get things working again.

The Upgrades: In the past, when sleep mode worked, I used a Seagate 1TB hard drive. It was miserably slow and I'm glad that it's gone. I've upgraded to a Samsung 850 EVO ssd and a WD Black 3TB hdd. I also upgraded my case (irrelevant), and my power supply. I went from a Thermaltake 750 watt, to EVGA's Supernova 850 watt G2.

Additional Info: I've played around with this issue a little and have had no luck solving it. All Windows 7 updates are installed. "turn hard drive off after" in Windows power settings is set to never. My motherboard's bios doesn't offer any options to change the power setting from S1 to S2 or S3, etc. However, sleep mode is available in Windows and prior to the previously mentioned upgrades, sleep mode worked fine. My Samsung 850 EVO was bundled with software (Samsung Magician), that has an option that can disable hibernation, but I've set it to where hibernation is enabled, so that shouldn't be an issue.

Full System Specs:

Case: Fractal Design Define R5
Motherboard: Gigabyte 970A-UD3 (revision 3.0)
GPU: EVGA Nvidia GTX 760
PSU: EVGA Supernova 850 watt G2
RAM: G Skill Sniper DDR3 (2 x 4gb)
SSD: Samsung 850 EVO 250 gig (Boot Drive)
HDD: WD Black 3tb
CPU: AMD FX-6300 Vishera 6-Core 3.5GHz
Also attached to the system is an Asus CD-DVD RW disk drive & a Rosewill Wireless Adapter

Any feedback is appreciated.



 
Solution
When it wakes from sleep, and then freezes, are the PSU, CPU and case fans still spinning, or do they stop too. Same for any led lighting. Did you disable hibernation? Hibernation isn't recommended to be enabled on desktop computers. It was mainly created for laptops, but has never had real great compatibility with the majority of hardware out there.

Check your PSU. I can't remember if there is a switch for ECO (Economy-power saving-low performance) mode on the G2 850w, but if there is, turn it off.


Disable hibernation: http://support.microsoft.com/en-us/kb/920730
I would DISABLE hibernation, entirely, and use sleep only. Hibernation is known to cause numerous issues with a variety of hardware configurations in Windows. I'd start by seeing if there are any more recent bios firmware versions available than the one you've currently got installed.

I'd also try disabling the advanced sleep states in the BIOS to see if that has any effect at all.
 

HairyBob

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Apr 4, 2013
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I'm using the most recent version of my BIOS. I've seen many posts that recommended changing the Bios's ACPI settings to S1 or S3. My BIOS doesn't give this option at all, so that's out the window. However, before my hardware upgrade, sleep worked fine, so I know there's potential for success.
 

HairyBob

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Apr 4, 2013
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The first time I tried installing, my computer froze and I restarted. This is interesting, my computer has never frozen other than this experience and, of course, waking from sleep mode.
I restarted and tried again. The installer finished, but with errors. Apparently some things failed to install.
In the end, the problem still exists, my computer still freezes after waking from sleep mode. Another detail that may or may not be important is that my computer takes about a second to freeze when waking. If I move my mouse around, it moves for about a second and then the screen freezes. Same with audio, it will play for about a second.

 
When it wakes from sleep, and then freezes, are the PSU, CPU and case fans still spinning, or do they stop too. Same for any led lighting. Did you disable hibernation? Hibernation isn't recommended to be enabled on desktop computers. It was mainly created for laptops, but has never had real great compatibility with the majority of hardware out there.

Check your PSU. I can't remember if there is a switch for ECO (Economy-power saving-low performance) mode on the G2 850w, but if there is, turn it off.


Disable hibernation: http://support.microsoft.com/en-us/kb/920730
 
Solution

HairyBob

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Apr 4, 2013
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10,520


It was the ECO switch. I totally forgot about that. I turned it on one day and then entirely forgot it existed.
Thanks for your help.