PC losing signal to monitor

[Qui]

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So I've been having this problem going on for like a month already and didn't really care before but now it's getting annoying. Whenever I play games like DotA 2, LoL, CoD on my PC, after a few minutes the screen suddenly goes black and says 'No Signal'. I looked around the net for solutions and most say it's most likely a GPU problem. So I thought it was overheating, I checked the temp with GPU-Z and it was only around 50-60C. I also just cleaned my fans and checked if the GPU fan was working but still nothing changed. Currently, I'm running the CPU without the GPU and I'm gonna test if it'll shut down on my games (I don't think this will work though since I probably wont even be able to run the games). If nothing happens, I'll probably format the PC. But before that, what else do you think I should do? What's causing this? I don't want to bring it to the shop unless that's the only choice I have.

Specs:
CPU : i3-2120 3.30GHz
RAM : 8GB
GPU : GTX 560 (non - Ti)
PSU : 600W

Oh, another thing. My OS is expired. However, I doubt that's what's causing this.

[acronis]

try lowering the video settings on your games... but i doubt that will fix your problem since dota 2 & LoL are considered light in hardware requirements. your gpu is on stock? not overclocked? or try using another port connection from your gpu to your monitor.

[Qui]

Thanks for the reply but I doubt that'd do anything. I'm sure the 560 can run those games on max. Yes, nothing is OCed. Don't have any other DIV/HDMI cable right now so I'll try tomorrow. Any more ideas before I reformat?

[keropi]

So I've been having this problem going on for like a month already and didn't really care before but now it's getting annoying. Whenever I play games like DotA 2, LoL, CoD on my PC, after a few minutes the screen suddenly goes black and says 'No Signal'. I looked around the net for solutions and most say it's most likely a GPU problem. So I thought it was overheating, I checked the temp with GPU-Z and it was only around 50-60C. I also just cleaned my fans and checked if the GPU fan was working but still nothing changed. Currently, I'm running the CPU without the GPU and I'm gonna test if it'll shut down on my games (I don't think this will work though since I probably wont even be able to run the games). If nothing happens, I'll probably format the PC. But before that, what else do you think I should do? What's causing this? I don't want to bring it to the shop unless that's the only choice I have.

Specs:
CPU : i3-2120 3.30GHz
RAM : 8GB
GPU : GTX 560 (non - Ti)
PSU : 600W

Oh, another thing. My OS is expired. However, I doubt that's what's causing this.

Try lang lowering the clocks to around 800/1600/1900 or raising the voltage 1 notch higher.

[Qui]

Reformatted and installed a working OS and it's still happening. Aw man this sucks. -.-

[archspace]

Have you tried updating the drivers? specifically for your gpu.

[acronis]

under warranty pa? pa RMA nlng na...

[Qui]

I updated the drivers last night as well. Still happening. I tried logging my computer temperatures and voltage and I noticed that the temperature only reaches 60C so I don't think it's overheating. But one thing I noticed was that, at the end of the log, the VCore dropped from 1.50V to 1.20~V. Is that a bad thing?

[jover]

try another power supply..
basin leaky na ang mga cap ana bro..