New build sleep problem

[Yammer]

I just bought an OCUK overclocked bundle, based on the Asus P8Z77-V. I installed Windows 7 SP1 from scratch, and it's working fine, but I've noticed a problem: if I leave the computer for a long while, I can't get it to wake up properly. I can still see it on the network, so it's still running, but the video signal won't come back up.

I've checked the power profile, set to high performance, and the only thing which is supposed to shut down is the monitor. I'm wondering if it's anything to do with the overclock profile. Any suggestions?

 

[Yammer]

Early days still, but I think I fixed it. FYI...

I worked out that it started going wrong on Saturday evening, and must have been okay for the three previous days. Although it had been used a lot in that time, having software installed, etc., it must have gone in to monitor standby as some stage. So, I looked at what I installed on Saturday, and CoreTemp was the only unknown for me.

I removed CoreTemp and rebooted, and it's just resumed okay.