Problems waking from sleep

freebooter · 4 Jun 2016 at 12:48

For some time my pc has had problems waking from sleep. Sometimes it is fine but other times the monitor displays 'no signal' and sometimes recently the fans and drives start up but the display doesn't and then after a period of time the pc reboots.

I used to think it was a gpu/monitor issue as sometimes turning off or re-plugging the monitor cable got the display back but I changed graphics cards a while back and had the same problems with both. I am now wondering whether it is a power supply problem.

It is not a high power system - i3 (1150), 660ti 2GB, 8 GB ram, ssd sytem drive and 3.5" data drive.

The power supply is a Corsair Builder 500W. It is about 5 years old. I had an AMD system when I got the psu and when I swapped to the i3 it was unclear whether the psu could cope with the Haswell sleep states.

In the bios I have EuP 2013 disabled and C-state set to Auto C3 limit.

It has been annoying but not enough to do anything about so far but recently when it happened and I had Steam open before putting the pc to sleep when it rebooted I had lost some of the Steam settings so I am concerned now about file corruption and loss when it happens.

Any ideas? thanks

JTrickle · 4 Jun 2016 at 15:19

Rather than the PC not waking from sleep, is it just the monitor not turning back on? A monitor cable issue?

Do you have a 2nd monitor?

Did it only start after upgrading to Win10?

freebooter · 5 Jun 2016 at 00:26

It happened before win 10. At first I thought it may be monitor or cable but I can't see how a cable fault could cause the reboots that have happened recently.

btw I never get any problems when the pc is running, even when under load ie gaming. It is just when waking from sleep.

The other possibility I thought of was graphics drivers.

JTrickle · 5 Jun 2016 at 12:23

Sorry I missed the "then after a period of time the PC reboots" comment.

Any chance of setting a different spare hard drive to boot into another OS?

Stealthploit · 5 Jun 2016 at 16:55

id have a look at my power options.. and maybe try reseting the to default

XysteR · 6 Jun 2016 at 20:43

A cup of tea and a bacon sarnie usually does wonders. But my problem is the polar opposite to yours - I find furious masturbation followed by a mug of Ovaltine helps...