How do i download Left 4 dead PC maps?

My PC automatically shuts down when on power saver?

• I tend to put my PC at power saver mode when I'm not using it and while I go to sleep because I download torrents often. Yes, I have it turned on overnight, but during the day, I turn it off for like at least 2 hours everyday. I had these power saver settings: turn off display at 1 minute and minimum performance at 5%, so it doesn't really heat up at all. Yesterday there was a brownout, which happened three times, on all three of them,my pc was turned on, and of course, it wasn't shut down properly. After the brownouts I turned on my pc again and left it at power saver, when I came back, it was completely shut down, and didn't shut down properly. These is still happening when I leave my pc on power saver. What do you think is the cause of this? and is there any way for me to fix it? BTW on those three brownouts, after the first brownout, I opened my pc, suddenly after like 2 minutes, the power went out again.

• Answer:

  You might want to check your PSU (Power supply) As it could have gotten damaged.