HD is running, display turned off by Windows, can't wake up monitor

[PODxt]

Hi, I worked on a film of 90 min past Sunday with Vegas Pro Video. I'm not used to work on projects this long, I usually work on 5-8 min videos. So I did a little editing (nothing really heavy) of these 90 min of footage: applied 2 image filters on the 2 video tracks (different angles with vibrance corrections), some titles with opacity effects and that's about it. I started to render my video sunday at 11pm with CPU only (not GPU) and by the time I'm typing (20/06/2017, 11am) the computer is still working on the render. So that's been 36 hours now.

The problem is that when I woke up monday morning, my display got turned off as if it went into power saving and I can't wake it up with mouse (USB) and keyboard (PS2). The Keyboard is not responding when I'm hitting the CAPS LOCK key (ie it's not switching on the green light for CAPS LOCK). Since I can't see anything on my screen, I absolutely don't know when / if the render will be over in 1h, 12h, 48h, or 1 week. I have an ANTEC Sonata 3 case that flashes blue leds when the HD is working and it flashes once per second so that's not heavy activity but it's writing on disk.

I fear to damage my HD1 by just hitting the power off switch. Is there a way to wake my monitor up so I can see how much hours there are left? Or would you shut down the computer?

Yesterday, I read about Vegas Pro allocating ALL the RAM to the preview thus leaving nothing but pagefile for the render...

Here is my setup:
CPU: Core i7 2600K @3.4Ghz (not OC)
Cooling: Noctua NH-D14
Mobo: Asus P8P67
RAM: 4x4GB RipJaws X Series DDR3-SDRAM PC3-12800 - F3-12800CL9Q-16GBXL
GC: Gigabyte Gefore GTX750 1GB
SSD: Samsung 840 Pro 128GB
HD1: Seagate Barracuda 7200.12 SATA 3Gb/s - 2 To 7200 RPM 32 Mo SATA III
HD2: Seagate Barracuda 7200.12 SATA 3Gb/s - 3 To 7200 RPM 32 Mo SATA III
PSU: Seasonic SI2 Bronze 620W
Case: Antec Sonata 3
OS: Windows 7 Home

Thanks in advance

 

[Megahertz07]

When leaving the computer working for a long time, I always change the power plan to high performance so it doesn't enter sleep or hibernate mode.

I think your system is locked. Try to hit the power button once. If it's responding it will try to shut down and ask if you want to save an open program. Then hit cancel. If it is locked and don't respond, you have no other option than hold down the power button till it shuts down. Once it starts do a check disk.

 

[PODxt]

Yes, lesson learned The problem is that the monitor went into power saving mode and I can't get any display, so I don't know what's happening (and can't hit cancel or anything). So you would advise to just shut down the computer? I'm already cringing

 

[Megahertz07]

I think your system is locked. Try to hit the power button once. If it's responding it will wake up and try to shut down and ask if you want to save an open program. Then hit cancel. If it is locked and don't respond, you have no other option than hold down the power button till it shuts down. Once it starts do a check disk.