Hello! So about 3 years ago i bought the parts to my first computer, and while its been running pretty well trough the years its been getting a little slow. The parts in my computer are: AMD fx 4300, AMD Sapphire Dual-X R9 270, the Corsair CM450M powersupply, 8 gb DDR3 Ballistix ram and a Gigabyte 78LMT-USB3 motherboard.
On black friday i decided to buy a Asus GTX 1060 3gb becouse it had a really good price and it was recommended. And yes i know that my processor will botlleneck the new gpu, but again as i said it had a really good price and was recommended. So fast forward to the past two days. I installed the new gpu in my old system, deleted my old AMD drivers and installed the new NVIDIA ones. At first it was running well and it increased the fps a little, again i didnt expect it to increase it hugely becouse of the bottleneck. While i was playing The Long Dark with it installed it crashed the whole computer, at first the screen went dark and told that there is no connection, then the whole computer shut down and when it went on back again the gpu fans made a huge noise and the computer just turned on again. The gpu or the inside of my case didnt feel that warm or anything so i just thought it was something else. Well in these two days the computer has had the same thing happen to it while playing games 3 times. I asked my brother what was wrong with it and he said that he didn't really know, but told me to take the gpu out, run the computer with no gpu and delete all the drivers, then install the gpu and the drivers back again. I did so and everything seemed to be fine, i even launched a couple of games and played them with really good performances. but after about 30 minutes of playing the computer did the same thing for the fourth time. The fourth time i was expecting it and cheked the gpu fans every couple of minutes and they were working like they are supposed to. So here comes my final question what is causing the crashes, is it the 450W psu, when the recommended for the new gpu is 500W, is it somehow the bottleneck from the fx 4300, or is the gpu just broken?
note: i havent touched any settings concerning the gtx 1060 and i have a hard time believing that the psu is causing the crashes when my old gpu's reccomended was 600W and it worked perfectly on my 450W psu.
note 2: the computer crashed 3 times while playing The Long Dark and once playing Rainbow Six Siege. But i have played League Of Legends and Destiny 2 with it for multiplse hours straight with no errors.
note 3: I am using the same computer to write this and it has had no problems, the problems only appear when i'm playing graphics intensive games
Also if any of you are kind enough what would be the best thing to upgrade next, i have about 200-300 euros to spare.