Video card problems or something else?

Jun 14, 2018
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I'm at a loss. My PC went crazy a few days ago while playing a game and now, after attempting many, many different things, I'm still unable to use it. My windows installation was destroyed. BSOD galore. You name it. I need help because I'm out of ideas on this one.

First I want to make it clear that I am not an expert in PC repairs, but I do have experience taking them apart and putting them back together again, swapping components, etc. I'm simply not experienced enough as someone who makes a living out of it.

These are my specs:
• Intel Core i7 6700 - 3.4 GHz
• 8 GB RAM
• Motherboard: Gigabyte H170-Gaming 3 DDR3
• Video card: Nvidia GeForce GTX 760
• 500 GB SSD
• 3 TB HDD
• PSU: 650W
• Windows 10 Professional 64-bit

And here is the sequence of events that led me to this. Hopefully, someone can give me new ideas:

1. I was playing Rise of the Tomb Raider. Unlike many other games of that level running smoothly on my PC, this one was running a bit sluggish. Very unstable FPS. I thought it was the game being badly optimized (I still think so, but that is off-topic). I switch the settings from DirectX 12 to DirectX 11 to see if it helped.
2. Went back into the game (this setting had to be changed outside the game and then restart it). That's when everything went to hell. I started seeing some weird artifacts on screen for a few moments and then a BSOD. The error mentioned said "video scheduler internal error". Damn.
3. Waited for windows to restart, switched the setting back to directx 12 (thinking that the blue screen was caused by dx11). Started the game again, and a few seconds in all the video on my screen got scrambled. Black boxes, lines, dots, etc. A mess. And then all frozen. This is when I started to panic. The first thing I thought after seeing this was the video card is fried.
4. I started windows again, researched the message on that BSOD and performed a chkdsk, as suggested. A restart was required.
5. After the scan, started Windows again and tried a different game. Fallout 4. A few seconds in, again, disaster: red dots, lines everywhere, complete mess... and another BSOD.
6. It goes downhill from here. After restarting once again, instead of going back to Windows, I got into the startup repair of Windows, meaning that Windows did not boot correctly. I tried every single option available. Nothing made Windows boot back up. After a few tries, I got into safe mode, where everything seemed OK. I tried restoring to a previous a checkpoint, and nothing.
7. After giving up on this installation of Windows, decided to reinstall it. Everywhere I looked on the internet, people kept mentioning that Windows may have gotten corrupted so a new installation was the easiest way to fix it.
8. I cave in and reinstalled. It all seemed fine after the installation. I even got to a point where I was able to reinstall Fallout 4. So I tried again. Same results. Crashes, BSODs (one of them mentioned "irql_not_less_or_equal"), restart. This also killed Windows for me... again.
9. At some point between all those restarts, startup repairs, etc. The entire video got locked into 800x600 resolution. There was no way to change it and even the BIOS was almost unusable because of the resolution (that's right; even on BIOS it stayed at that size). I had never seen anything like this.
10. I finally got into Windows again after a second re-installation (this time I completely wiped out the drive to rule out viruses and malware). But still, no way to change from 800x600 resolution.
11. I tried installing the Nvidia drivers and as soon as the installation started, another BSOD, this time the message mentioned "nvlddmkm.sys", which apparently has something to do with Nvidia drivers.
12. At this point, I shut down, removed the video card and connected the monitor directly to the motherboard to use the internal graphics chip.
13. This made it much better, the resolution went back to normal and Windows started up without issues. Of course, this was not the acceptable outcome.
14. After much more investigating and different attempts to fix this mess, I decided that enough was enough, so I bought a new video card, a Gigabyte GeForce GTX 1060.
15. Finally, it arrived today. I connected everything as it should and turned the PC back on. I got video again!! Yay!!! But....
16. My HDD, for whatever reason was not being recognized by Windows. I found out how to fix that, and as soon as the drive was re-recognized, dots everywhere and complete freeze!!! NOOOOOOOO!!!!
17. Restarted the PC but there was no way to get video back. Not even the Gigabyte logo from the BIOS was showing up. Simply black screen.
18. I noticed that the light on my Xbox One gamepad came on and pretty much everything seemed fine inside the PC. There was simply no video output whatsoever. Could my new shiny video card have been fried already? Could it be defective?
19. I tried several things, changing the PSU connectors, switching between using HDMI and DVI, etc.... nothing helped.
20. I then removed the new video card, reinstalled the old one, and this time I got video again, but once more, 800x600 resolution, locked and as soon as Windows started and tried to installed the Nvidia drivers automatically, BSOD again.... shit!

So, at this point, I have no clue what else to do. Could it be the PSU that is causing all this trouble? It is the oldest component I have on this PC, about 7 years old (older than two of my kids!). Would changing the PSU fix all of this?

Could it simply be bad luck that I got a defective video card today and this would have happened regardless of all the drama before it arrived? Should I RMA the new video card?

What else can I do? Like I said, I'm out of ideas and at this point I need suggestions from the experts.

I hope someone can help me.

Thank you!
 
Solution
Problem solved! It was definitely one damaged GPU (the old 760) and a defective one (the new 1060). I sent back the 1060 (never buying from that seller again, of course) and re-purchased another 1060 from a different seller.

I received this second 1060 during the weekend. This one came properly packaged, with manuals inside, covering on all the connections, etc. In short, a new item, as expected when, you know, pay for a new item.

I installed this new one into my PC and it worked perfectly! All drivers installed without issues, no display problems and the games I tried already look more beautiful than ever.

I'm still using the new PSU I purchased but since it doesn't look like the old PSU was the problem I'm thinking about returning...
Jun 14, 2018
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I have exactly same problem with my laptop. It srarted the same way (same game )ended the same way. I even went to service center they diagnosed it and found no hardware error. I don't know what to do either.
 
Jun 14, 2018
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PSU: XFX model XPS-650W-3XS
RAM: Kingston PC3-10700

According to CPU-Z, The RAM memory is using 1.5V as you mention. I'll look into downclocking it as you suggested. However, at the moment I am more concerned with the video display issue, so I would like to have that solved that first.

Thank you!
 
I'd try this:
  • remove all graphics cards, connect monitor to integrated video output;
    boot into bios, enable igpu multi-monitor setting, set primary graphics adapter to igpu;
    shutdown and connect GTX 1060;
    boot into windows (monitor still connected to igpu);
    reinstall NVIDIA gpu drivers;
    connect second monitor to gpu (use TV, if you have no other monitors);
    check gpu driver settings and enable video output on second monitor;
    if everything is ok, then
    • reboot into BIOS,
      disable igpu multi-monitor, set primary graphics adapter to PCIE,
      shutdown,
      connect monitor to GTX 1060,
      boot up your pc.
BTW - what exactly did you do on step #16 ?
(16. I found out how to fix that, and as soon as the drive was re-recognized, dots everywhere and complete freeze!!!)
 
Jun 14, 2018
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I'll definitely try all that later today and come back with the results.

As to step 16, what happened to the HDD was that it was not being recognized by Windows. Under Disk Management, it showed as "dynamic" and "foreign" (I had never seen this before). I did some research and found the solution easily in Microsoft's website. It seems that this happens sometimes when moving the HDD from one PC to another (or in my case, after reinstalling Windows from scratch?).

The solution was to right click on it in Disk Management and click on "import disk" (or something like that). After a confirmation popup, I click to proceed, and that's when everything froze.

That was the only and last time I was able to get video out of the new card. After coming back to Windows (using the internal graphics, of course), the HDD was recognized correctly.

Thanks!
 
Jun 14, 2018
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I started following these steps but only got to the part about reinstalling the NVIDIA drivers. I was curious so I opened the device manager and it showed the GPU but with an error. I opened its properties and the message said "Windows has stopped this device because it has reported problems. (Code 43)".

I researched for solutions for this and most of the answers to this say to reinstall the drivers, which I had just done. Other suggestions mention disabling the device, uninstalling the device and having Windows scan for hardware changes... nothing has made any difference.

By the way, I got a new PSU and replaced my old one. Didn't make any difference either, so I guess we can rule out PSU issues.

Any ideas?

Thanks!
 
Jun 14, 2018
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Ok, an update.

I connected the GPU to the 2nd PCI-E (while still using the internal GPU). This time, the DM recognized it but when I tried to make it the primary output again, same result. No video whatsoever.

I then put the old PSU in my other PC and the old 760 GPU there as well. Also, same result. The GPU was not properly recognized by windows.

I'm 90% sure now that the problem is the 760 is busted and I got a bad 1060 (box came open, no manuals inside, which is weird, etc). I returned the 1060 to get another one and will try again.
 
Jun 14, 2018
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I did that and it was the same result. Windows would not recognize the 760 on the other system either. I already returned the seemingly defective 1060 and bought another one. I'm now waiting for it and will try again.

Thanks!
 
Jun 14, 2018
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Problem solved! It was definitely one damaged GPU (the old 760) and a defective one (the new 1060). I sent back the 1060 (never buying from that seller again, of course) and re-purchased another 1060 from a different seller.

I received this second 1060 during the weekend. This one came properly packaged, with manuals inside, covering on all the connections, etc. In short, a new item, as expected when, you know, pay for a new item.

I installed this new one into my PC and it worked perfectly! All drivers installed without issues, no display problems and the games I tried already look more beautiful than ever.

I'm still using the new PSU I purchased but since it doesn't look like the old PSU was the problem I'm thinking about returning the new one and just put the old one back. Should I do that or should I keep the new one and just have the old PSU as a back up?

I'm now worried that the old PSU, being old as it is, could cause more issues in the near future. Then again, it looks to be working fine at the moment so maybe I'm just being paranoid?

Anyway, thank you all for all the advice!!!
 
Solution