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Computer shuts down in Sleep mode, but only sometimes?

Last response: in Windows 7
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March 23, 2014 10:01:01 AM

I've had nothing but issues ever since I upgraded my CPU and added an aftermarket heatsink/fan, an SSD, and a second HDD. One of the problems that's crept up lately is when I hit "Sleep", the computer monitor will shut off, but the tower itself will stay on for another 5-10 minutes and then power down. Alas, I hit the power button on the tower in the morning only to find myself at the "Start Windows normally" screen. The weirdest part is that this only happens <15% of the time so I have no clue what's up or what's causing it. This also seems different from the other threads I've read where people have had similar sleep related issues.

Power options:

- all three (no clue why I have three) options under "Network Adapters" and all options under "Mice and other pointing devices" in "Device Manager" have their "Power Management" tabs set to where they can't wake the computer [I only want to wake it via the power button on the tower]
- just found out that the two (again, no clue why I have two) options under "Keyboards" in "Device Manager" had their "Allow this device to wake the computer" boxes checked so I just unchecked them [I highly doubt this has anything to do with it, but I might as well eliminate all possibilities]
- I require a password upon wake up
- the display turns off after 10 minutes of inactivity
- the computer goes into Sleep mode after 1 hour of inactivity
- I have "Turn off hard disk after" set to 55 minutes
- "Sleep after" is set to 1 hour and "Allow wake timers" is set to "Disable"

I'm not sure about my sleep settings in BIOS as I haven't been in there in a couple of weeks. If need be, I'll post anything from there, as well.

Thanks in advance, all.


EDIT: I have "Require a password on wakeup" set to "Yes" under "Change plan Settings" -> "Change advanced power settings", but under both "Require a password on wakeup" and "Choose what the power buttons do" in the Control Panel's left-hand window, the "Password protection on wakeup" section is greyed out and only accessible if I click "Change settings that are currently unavailable."

I'm confused :??: 
a b $ Windows 7
March 25, 2014 7:49:10 PM

In device manager check the power management of devices like your ethernet, keyboard and mouse to see if they are allowing the machine to turn them off to save power
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March 26, 2014 5:05:47 PM

ste_wilko said:
In device manager check the power management of devices like your ethernet, keyboard and mouse to see if they are allowing the machine to turn them off to save power
All of them have nothing checked under "Power Management".
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Best solution

May 24, 2014 9:03:05 AM

Keep seeing this issue related to gigabyte motherboards could be a bios setting. I had to change the dummy power option in BIOS to fix this issue.
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May 27, 2014 3:35:53 PM

xaviermb said:
Keep seeing this issue related to gigabyte motherboards could be a bios setting. I had to change the dummy power option in BIOS to fix this issue.


My problem seemed to go away on its own so I can't say why it stopped.

User [2flips] has the original answer on the thread I linked in my second comment (and was the only answer I've seen regarding this issue that wasn't checking "Power Management" settings).

Thanks, [xaviermb].
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