GTX 660 crashing after upgrades to PC

[ILIKEITSIMPLE]

First of all, my current setup:

 

CPU: INTEL CORE i7 4770 3,4GHz Socket 1150
Motherboard: ASUS Z87M-PLUS Z87 S-1150 M-ATX
RAM: CORSAIR 16GB DDR3 VENGEANCE PRO RED 2400MHZ (2X8GB) x2
GPU: GIGABYTE GEFORCE GTX 660 OC 2GB PCI-E DVI/HDMI/DP
Storage: SASMUNG 850 Pro MZ-7KE1T0BW 1TB
PSU: EVGA SuperNOVA G2 750W
Cooling: NOCTUA NH-U12S WITH EXTRA NF-F12

 

I recently purchased the G2 to replace my Corsair CX600M and after installing it on friday it seemed to work perfectly fine, no problems at all. I didn't think of testing to play games or run any advanced test on the graphics card, unfortunately. (At that time I was running Windows 7 Home)

On saturday I upgraded my storage from a 840 EVO to the 850 Pro and installed Windows 10 = major problems. BSOD several times, and seemingly random (trying to pin a program in the startmenu for example). Even an ad or a video playing on YouTube would cause a crash/forced restart, let alone playing games. I thought at first that perhaps Windows 10 was the problem but changing the power management mode in NVIDIAs control panel did make the crashes less frequent, although while testing CS:GO it would lag (not a problem with the internet connection) and random black screen for a second or so. 

Following this I decided to abandon Windows 10 for Windows 7 Pro (I like W7 a lot more), I did a fresh install of that on a separate 850 PRO, installed all the updates from Windows Update and downloaded the latest NVIDIA driver, and the crashing/freezing of playing games is back. And that is where I'm at for the moment.

 

Now I'm wondering what to do next. Can the PSU be the problem? Should I go to the trouble of re-doing all my cablemanagement to test with my old CX600M? Could it be a drivers issue? Since the fresh install I haven't been able to fetch MOBO drivers from ASUS webpage since it seems to be down at the moment, could that affect this? 

 

Any tips on what to do would be greatly appreciated! :-)

[jcw150]

I'd try putting the old PSU back in as it looks as if the problem is with the new unit.

[ILIKEITSIMPLE]

1 minute ago, jcw150 said:

I'd try putting the old PSU back in as it looks as if the problem is with the new unit.

Yeah, that is what I fear I have to do, a bit of work though. My CPU power connector isn't the easiest to plug into with the NH-U12S in the way but yeah. I guess it would at least rule out the PSU in case it works. I so wish I would've tested games when I just installed it, since that would've been pretty much definite. 

[jcw150]

Just now, ILIKEITSIMPLE said:

Yeah, that is what I fear I have to do, a bit of work though. My CPU power connector isn't the easiest to plug into with the NH-U12S in the way but yeah. I guess it would at least rule out the PSU in case it works. I so wish I would've tested games when I just installed it, since that would've been pretty much definite. 

Could you not just leave the PSU outside the case and just get the connectors in to see if they work?

 

I think if it was the PSU it would just all shut off if it didn't get enough power tho.

[ILIKEITSIMPLE]

Just now, jcw150 said:

Could you not just leave the PSU outside the case and just get the connectors in to see if they work?

 

I think if it was the PSU it would just all shut off if it didn't get enough power tho.

Your right, I could just make some space for it to sit beside the case, that would make it a bit easier and I wouldn't have to change everything. Still, that damn CPU power connection, haha.

 

That is exactly what I though as well. I initially purchased a different CX600M for my computer and it was faulty, causing the computer to shutdown without warning after playing demanding games (BF4) for a little while. So I would expect the same here if the problem is the voltage/power, but no, I can CTRL+ALT+DEL and shut down the game via taskmanager without any problems. 

[jcw150]

3 minutes ago, ILIKEITSIMPLE said:

Your right, I could just make some space for it to sit beside the case, that would make it a bit easier and I wouldn't have to change everything. Still, that damn CPU power connection, haha.

 

That is exactly what I though as well. I initially purchased a different CX600M for my computer and it was faulty, causing the computer to shutdown without warning after playing demanding games (BF4) for a little while. So I would expect the same here if the problem is the voltage/power, but no, I can CTRL+ALT+DEL and shut down the game via taskmanager without any problems. 

Are your temps ok?

[ILIKEITSIMPLE]

5 minutes ago, jcw150 said:

Are your temps ok?

When I got the games working with the power management mode fix I played CS:GO for some time and CPU reached 65 degress and the GPU around 65-70, I would guess that it's okay?

[ILIKEITSIMPLE]

11 hours ago, jcw150 said:

I'd try putting the old PSU back in as it looks as if the problem is with the new unit.

Okay, I have now tried the old PSU and CS:GO works again. I was able to play uninterrupted for quite a while. So I'm drawing the conclusion that the problem actually is with the new PSU, unfortunately. It sucks that I now have to uninstall and install the PSUs again until a replacement arrives but oh well. When the replacement comes, I'll be sure to test it outside the system first.