Cant run gtx 970

[Imsoonoob]

My mobo is gigabyte970A DSP3 and my psu is cooler master thunder 600W
Im using my zotac gtx 970 for 1 year and suddenly im getting blank screen when i start my pc but when i install other cards i.e gtx 960 and gtx 1060 my machine boots and working fine.
But i have tested my gtx 970 on my two friends machine which one has corsair 850W and gigabyte b150m dh3 mobo, and other has same build of mine but psu is corsair vs650W my gtx 970 is working fine with psu of 850W but giving blank screen on vs650W psu. But i have played games on my pc for 1 year and didnt get any blank screen until now.
Cant understand on what to do. Please help

 

[CTurbo]

Both the Cooler Master Thunder 600w and the Corsair VX650 are below average psus in terms of performance and reliability. It's likely that the GTX970 is too power hungry for them. Your 600w's capacitors are not meant to last very long. They are probably getting worn down. I recommend a psu upgrade.

 

[Imsoonoob]

Both the Cooler Master Thunder 600w and the Corsair VX650 are below average psus in terms of performance and reliability. It's likely that the GTX970 is too power hungry for them. Your 600w's capacitors are not meant to last very long. They are probably getting worn down. I recommend a psu upgrade.
But i was running my gpu on the same psu for 1 year. Then also i will go for psu upgrade. Thank you for the suggestion.