Problem with 750 ti

[C045]

It turns out that recently a friend gifted me an Asus Strix 750ti 2GB. My friend mentioned that the card worked well for three years and then suddenly stopped working. So he put it in a box and stored it away. Now he has a 2080.
One day we were talking about technology, and I mentioned that I was looking for a card to play some games, and he said, "Well, take this one and see if you can fix it." It was a very nice gift from him.
I was really surprised when, upon connecting it to my PC, the graphics card worked perfectly. So I did some maintenance, changed the thermal paste, and started using it normally.
But be careful, everything happens for a reason. One morning, after a week of binge-playing all the games the card could handle, I turned on the computer, but it only gave video through onboard graphics. The card wasn't working. It had simply stopped.
After playing League of Legends in 720p with the Intel HD of my i5 2310, I turned off the computer.
In the afternoon, I turned it on and it no longer gave video through onboard graphics. It started giving video through the dedicated graphics card again!
So I started doing crazy tests with benchmarks, watching the stats with MSI Afterburner, running Furmark, and nothing. After hours and hours of testing, the graphics card continued to work fine.
This continued until a week ago. I downloaded Destiny 2, which isn't demanding for this 750 ti, but something unexpected happened. The game initially ran well, and I was playing wonderfully. However, later the monitor started turning off/on, off/on. The image would shift to the left, and it would turn off/on.
Then I tried with League of Legends and experienced the same issue: the monitor kept turning off and on.
"Okay, I'll do the following: I'll change the VGA cable, the HDMI adapter, and use an active DVI to VGA adapter," but I only got the same results.
The curious thing is that the graphics card, despite being used at 100% many times, doesn't go above 75 degrees. This leads to the conclusion that it's not a temperature problem, because it starts showing symptoms even at 40 degrees.
Now let me tell you the funniest, yet strangest, half-solution:
Attention, dear audience who has made it this far. I've been experimenting with MSI Afterburner. I realized that if I set the GPU fan to manual and leave it at 100%, in some games, the graphics card no longer presents any issues. Even running Furmark with the GPU at full use, reaching up to 85° (using my heat station, set to 100° with hot air directed at the GPU—quite hardcore), the monitor never turns off. But if I revert the settings and leave the fans on auto, the monitor starts showing those strange symptoms mentioned earlier.
This is the first time I've seen something like this with a graphics card, and I have no idea which component might be depreciated and causing these problems.
But here's where TechPowerUp comes in! It's full of experts. So, if you've made it this far, I'm asking for your help to see how I could solve this problem or where I should start first.
And thank you very much for being patient with me, and thank you in advance for your great help.

 

[eidairaman1]

It turns out that recently a friend gifted me an Asus Strix 750ti 2GB. My friend mentioned that the card worked well for three years and then suddenly stopped working. So he put it in a box and stored it away. Now he has a 2080.
One day we were talking about technology, and I mentioned that I was looking for a card to play some games, and he said, "Well, take this one and see if you can fix it." It was a very nice gift from him.
I was really surprised when, upon connecting it to my PC, the graphics card worked perfectly. So I did some maintenance, changed the thermal paste, and started using it normally.
But be careful, everything happens for a reason. One morning, after a week of binge-playing all the games the card could handle, I turned on the computer, but it only gave video through onboard graphics. The card wasn't working. It had simply stopped.
After playing League of Legends in 720p with the Intel HD of my i5 2310, I turned off the computer.
In the afternoon, I turned it on and it no longer gave video through onboard graphics. It started giving video through the dedicated graphics card again!
So I started doing crazy tests with benchmarks, watching the stats with MSI Afterburner, running Furmark, and nothing. After hours and hours of testing, the graphics card continued to work fine.
This continued until a week ago. I downloaded Destiny 2, which isn't demanding for this 750 ti, but something unexpected happened. The game initially ran well, and I was playing wonderfully. However, later the monitor started turning off/on, off/on. The image would shift to the left, and it would turn off/on.
Then I tried with League of Legends and experienced the same issue: the monitor kept turning off and on.
"Okay, I'll do the following: I'll change the VGA cable, the HDMI adapter, and use an active DVI to VGA adapter," but I only got the same results.
The curious thing is that the graphics card, despite being used at 100% many times, doesn't go above 75 degrees. This leads to the conclusion that it's not a temperature problem, because it starts showing symptoms even at 40 degrees.
Now let me tell you the funniest, yet strangest, half-solution:
Attention, dear audience who has made it this far. I've been experimenting with MSI Afterburner. I realized that if I set the GPU fan to manual and leave it at 100%, in some games, the graphics card no longer presents any issues. Even running Furmark with the GPU at full use, reaching up to 85° (using my heat station, set to 100° with hot air directed at the GPU—quite hardcore), the monitor never turns off. But if I revert the settings and leave the fans on auto, the monitor starts showing those strange symptoms mentioned earlier.
This is the first time I've seen something like this with a graphics card, and I have no idea which component might be depreciated and causing these problems.
But here's where TechPowerUp comes in! It's full of experts. So, if you've made it this far, I'm asking for your help to see how I could solve this problem or where I should start first.
And thank you very much for being patient with me, and thank you in advance for your great help.

Please shorten this, we don't need a drawn out story. TL/DR.

What is the problem with the card?

What is the card doing or not doing?

What do you want the card to do or not do?

What have you done to troubleshoot?

Get a GPU-Z Screenshot, get pics of white stickers from the back of the card please.

Also provide complete & detailed PC specs.

 

[ShrimpBrime]

It's junk, was probably junk when friend put it away and it will remain junk as you can purchase the most bottom end RX 6400 and it will completely smash that card in performance. I'm talking 150% faster. Cough up 20 bucks more or so and grab a 6500 XT, like 169 bucks be about 250% faster.

GLHF!

Tldr, card ain't worth fixin. Junk it.

 

[eidairaman1]

It's junk, was probably junk when friend put it away and it will remain junk as you can purchase the most bottom end RX 6400 and it will completely smash that card in performance. I'm talking 150% faster. Cough up 20 bucks more or so and grab a 6500 XT, like 169 bucks be about 250% faster.

GLHF!

Tldr, card ain't worth fixin. Junk it.

Better off getting a rx 6400 or 6500

 

[Frick]

Temp sensors can malfunction. And in any case those are signs of just an old duying GPU. Also note that Furmark doesn't work like games, so cards can be Furmark stable but not game stable (and cards can be game stable but not say paint.net with hardware acceleration stable).

 

[DirtyDingusMcgee]

so leave the fan on 100 percent. problem solved.