MSI GTX750 TI OCV1 Crash (Black Screen) while playing recent games

[ChainsOfDoom]

Hello, first sorry for any grammar mistakes, I've come here out of desperation, 5 months ago I upgraded my PC, I bought a new GPU (MSI GTX750 TI OCV1), a new PSU 500w 1Life, and 2x4 Corsair ram, I had a GT620 (couldn't handle any recent games).
Weeks after I bought the new hardware I started to experience system crashes, black screen, while playing graphic intensive games (Dragon Age Inquisition, GTA V, Attila:Total War, Watch Dogs), I've tried every solution I could find (lower gpu clock, maximum perfomance power managment nVidia 3D settings etc).
The games crash even if I lower graphic quality (I usually have graphic settings high enough without going below 60 fps).
I have the latest drivers, I tried cleaning the drivers and installing everything again, clean W8 install
Specs:
Intel® Core™ i5-3350P Processor
Corsair 8GB (2x4GB) DDR3 1333MHz C9
MSI GTX750 TI 2GB OCV1
MSI says the graphic card has 1137 MHz clock boost but afterburner gives me 1215MHz factory overclock
PSU 1Life 500W
1x 20/24pin MB
1x 12V 4pin CPU
2x SATA
4x 4pin peripherals
1x FDD
Power: 500W
Lines:
+3.3V: 34A
+5V: 40A
+12V1: 16A
+12V2: 17A
-12V: 0.8A
+5VSB: 2.5A
Motherboard


I believe the problem is the PSU, it's was cheap I tought it was going to be enough because it has 500w, but nVidia says GTX750 TI needs at least 20A single 12V rail and my PSU has 2 rails 16 and 17, is this the problem?, because my lack of knowledge I don't want to spend money without knowning what is the problem.
If anyone has got a clue I thank you for it
Best regards

 

[clutchc]

I'd say it is the PSU. Can you link me to the exact PSU?

 

[ChainsOfDoom]

I'd say it is the PSU. Can you link me to the exact PSU?

1Life 500W

 

[clutchc]

I'd say it is the PSU. Can you link me to the exact PSU?

1Life 500W

I was hoping that the total +12V rail watts would be listed. Normally it is less than the product of the Volts times Amps. And if it was too low, that could be the issue. But unless the PSU is a very poorly made cheap unit, it should be marginally adequate for that card as long as nothing is OC'ed.

Try this test; swap back the old card and see if you can get the issue to happen again. If not, I feel safe narrowing the problem down to either the new card or the PSU. The PCIe x16 slot is only fed off of one of those +12v rails. But the GTX 750 Ti is only a 60W (TDP) card at max demand: http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750-ti/specifications
That relates to only 5A @ +12V, not 20A. (Amps = Watts / Volts)

 

[ChainsOfDoom]

It works fine with GT620, but I tried to run a stress test on the GTX750 (FurMark) and it handled well, stable 80ºC gpu and 65ºC cpu for some 20 mins before I stopped it.
The strange thing is that sometimes I can play those games 3/4 hours and have no problems and other days it dies after 10 mins.

 

[clutchc]

While 80C is not unsafe, it is a bit hot. How's the air flow in your case? It may be that the card is overheating. Temps accumulate and if not removed with good airflow can keep climbing.

Btw, there's really no reason to require the card to run at 60 fps min. 30 fps and above is still smooth gameplay. I realized everyone wants to get the highest FPS that they can; as high as their monitor's refresh rate. But if the card is reacting to heat or to poor voltage regulation (PSU) at that setting, then try backing off and see if the issue persists.

 

[ChainsOfDoom]

While 80C is not unsafe, it is a bit hot. How's the air flow in your case? It may be that the card is overheating. Temps accumulate and if not removed with good airflow can keep climbing.

Btw, there's really no reason to require the card to run at 60 fps min. 30 fps and above is still smooth gameplay. I realized everyone wants to get the highest FPS that they can; as high as their monitor's refresh rate. But if the card is reacting to heat or to poor voltage regulation (PSU) at that setting, then try backing off and see if the issue persists.

I'm thinking about changing the PSU to this one is it good?
And I'm adding a fan to increase air flow
I was also having crashes playing WarThunder with Movie settings (70fps) but I lowered to Very High with VSync and after 3 days still hasn't crashed

 

[clutchc]

That's a tier 3 PSU. OK. This XFX is a tier 2 PSU and would be better if funds allow. http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%2050001669%20600014072&IsNodeId=1&bop=And&Order=PRICE&PageSize=30