Windows 7 Sleep/ Hibernation ignores 3Dsmax rendering

I know this has been discussed a few times but I hardly ever found a solution. I was running Windows Vista for 5 yrs and recently bought a 2nd pc with Windows 7. I tried to set everything from Bios to Power Management to exactly the same as my Vista's with the exception of "Hybrid Sleep" which wasn't found in my Windows 7.

So here's the problem. My Vista would be able to recognize that my pc is running 100% rendering from my 3Dsmax and only starts sleep mode counter AFTER render is done. Meaning it would finish up the job before going to sleep or hibernate. That is what hibernation is for, isn't it? BUT, my Windows 7 won't. It will go to sleep even when my PC is rendering, as long as timer is up. This is odd. I cannot seem to find a solution for this and currently tempted to find a way for 3Dsmax to send a script to command prompt to activate sleep mode instead. But this shouldn't be the way, especially since previous and older versions of Windows such as Vista and XP were both able to function properly on this aspect.

I am running both PC in a room that is not very well ventilated and I don't want the heat to build up or waste electricity whenever I was rendering. Therefore, I really need this function to work. Shutting off Hibernation or setting a few estimated hours is a chore and undependable. I hope guru here could help me out.

Lastly, I am new to forum hope I didn't post it in the wrong section.

Maybe one of these will help you - sleep - How to prevent a Windows 7 PC from sleeping when CPU usage is over X%? - Super User

Hey thank you. But which of it is the solution? The 'idle for' will not work if windows 7 couldn't detect render as an activity. And which dialogue box is that (spanish?) language window from?

And by suppressing Sleep/ Nosleep means that hibernation and sleep will be deactivated? In that case it defeats the purpose of having hibernation in the first place. I really have to use it.

I guess it is in German?. The screenshot in the link is the one you get from rightmost menu - Einstellungen.

But how do I activate that window in the first place? I don't understand a single word in that screenshot.

Oh... it's an app. But I can't understand that language and it doesn't come with English.

The screenshot shows you which settings you would need and I told you how to get to there. I bet you don't need to configure anything else.

Is there no way within windows 7 itself to function like vista in terms of hybernation/ sleep? That I can had to rely on external applications?