Help trying to figure out what's wrong

[c3101429]

So I recently started having problems with my PC. It happened a few weeks ago once or twice then seemed to go till this week when it came back with a vengeance. It began with me playing a game. It wouldn't let me change the resolution to full screen of any other resolution than the standard one. It had previously let me do it several times. Also, I usually have 2 accounts open at the same time. It refused to let me and when I tried it made the screen go black. The rest of the PC was on and at first I could still hear the PC sounds so I'd restart it. Now I tried several games and some work fine and some cause the black screen error. Even older games like CSGO started to do it to me today for the first time. I could play more graphically demanding games though which I found weird. Now I don't just get the screen going black, I get a weird sound that sounds like a loud electronic scream in my ears, it is possible this is down to the games ending instantly. I have no clue what's causing it. It always restarts with no issues after I restart it. I've checked for dust bunnies and ran some benchmarks but I can't figure it out. I only know it's getting worse very quickly. PLEASE HELP!!

Thanks in advance

 

[badboyrog2]

put somes specs please

 

[c3101429]

IIntel Core i5 4590 3.30 6MB 84W SKT 1150 Retail,
. Asrock Fatal1ty H97 Performance,
. 2GB DDR3 1333,
. Integrated Sound Card,
. Manufacturer Supplied Cooler,
. 1000GB S-ATAIII Hard Drive 6.0Gb/s,
. No Secondary Hard Drive,
. Nvidia GTX750 (1024MB),
. CiT 2206 Black Midi Case No PSU,
. 500W PSU with 12cm Fan,

 

[badboyrog2]

''2GB DDR3 1333''

only 2GB ???

''500W PSU''
which brand/model?


''Nvidia GTX750 (1024MB)''

too weak to play todays games and even old one with only 1 GB

 

[c3101429]

sorry i copied the specs from the original purchase. I have 16gb of ram now. The psu is onyl a bog standard one. If it makes a difference I can take the side off to see but I don't think it will. i don't play the big games. I have been playing the same games for years and I have never had an issue at all. The PC is 16 months old so it shouldn't be having issues. The most recent game I play is Paragon and I have no problems with that.

 

[c3101429]

I decided to try an old game so I fired up Team Fortress 2, released 2007. As with the others, it worked for a few rounds then did the screen cutout to blank screen. Idid figure that I was right about the electronic sound being the game ending suddenly.