sudden no signal while playing game

[iyerohit23]

the only game i play is fifa and have been playing over a decade.

so on 12 sep 2017 i downloaded fifa 18 demo. it worked fine until recently on 21st sep 2017 while i was playing suddenly my screen(32" lcd tv) displayed no signal. i noticed that my pc was running perfectly, so i pressed alt + tab (minimized my game) and i had my signal back on. since that day this thing is getting repeated evry time i start playing some times after 10 mins into the game or 30mins and everytime i have to minimize the game to get the signal back. then i went back to fifa 17(which never had any problem) but the same problem happed while playing fifa 17.

all drivers are up to date.

i noticed my cpu temp raises upto 86*c while gaming
so I did the intel stress test and my cpu passed

please help me out. thanks in advance

my specs
intel core i3 540 @ 3.07 ghz
nvidia gtx660 2gb card
8 gb ram
500 gb hard disk

i have already cleaned my entire cabinet
checked all cables
everything works fine

 

[ComputerGeek21]

thats quite hot for a cpu, how old is the computer and when did you last reapply thermal paste?
also are these tempratures abnormal?

 

[iyerohit23]

thats quite hot for a cpu, how old is the computer and when did you last reapply thermal paste?
also are these tempratures abnormal?

my pc is around 5 years old never reapplied thermal paste
i assume the temps are normal for my processor which is kind of old

 

[ComputerGeek21]

noo thats a bit too hot, try replying your thermal paste, i'm not sure if it will help your original problem but its something that needs to be addressed

 

[iyerohit23]

noo thats a bit too hot, try replying your thermal paste, i'm not sure if it will help your original problem but its something that needs to be addressed

kk I will try doing it