1080 SC crashing, fans maxing out. Is it the motherboard or CPU?

Hi Ed...thanks for the reply

I did actually clean everything last week. I have an electric blower I use with a vacuum cleaner.
You know, I initially suspected the power supply once I eliminated a faulty video card as the culprit. With no other symptoms in the system and the voltages on the PSU reading normal, how do I further troubleshoot the power supply?
The troubling part here is the system didn't have so much as a hiccup with the 980ti in the machine for 8 months. I've installed a plethora of video cards over the years, so I don't think I damaged the connectors in the pci e slot. I did try the other pcie slot too. So frustrating.

Picked up on your post that the PSU is a 1000 watt Corsair RM1000l which being well over rated for your system and being Gold Certified is hopefully not culprit, although it is conceivably possible, this is where having a spare PSU can come in handy!
However and this is a bit of a longshot, check that the modular plugs are all fully pushed home and the plugs on the card are fitting ok as in the connectors are all pushed home, shouldn't be able to see any metal bits stocking up a bit higher than the others.
May even be worth trying another modular cable, if you have a spare one with the right plugs.

Moving on, Display driver nvlddmkm stopped responding and has successfully recovered is one of those annoying problems that seems to affect some and not others, I had it for several months on WIN7 and likewise changing Graphics cards or Drivers did nothing to stop it, then it mysteriously went away with a driver update. If you were not getting it with a 980TI and you have updated the drivers when installing the 1080 maybe try rolling the drivers back?

Could be worth checking the Nvidia Forums and see if there are any similar issues being reported with specific drivers?

clam1952 said:

Picked up on your post that the PSU is a 1000 watt Corsair RM1000l which being well over rated for your system and being Gold Certified is hopefully not culprit, although it is conceivably possible, this is where having a spare PSU can come in handy!
However and this is a bit of a longshot, check that the modular plugs are all fully pushed home and the plugs on the card are fitting ok as in the connectors are all pushed home, shouldn't be able to see any metal bits stocking up a bit higher than the others.
May even be worth trying another modular cable, if you have a spare one with the right plugs.

Moving on, Display driver nvlddmkm stopped responding and has successfully recovered is one of those annoying problems that seems to affect some and not others, I had it for several months on WIN7 and likewise changing Graphics cards or Drivers did nothing to stop it, then it mysteriously went away with a driver update. If you were not getting it with a 980TI and you have updated the drivers when installing the 1080 maybe try rolling the drivers back?

Could be worth checking the Nvidia Forums and see if there are any similar issues being reported with specific drivers?

Hey Clam

I switched out the modular cables and no luck. I also checked further down the event log and saw the nvlddmkm error happened with the 980TI. Though those occurrences went unnoticed and did not cause a systems crash.
It has to be something with the pcie slot? Either a power issue to the pcie from the PSU or something wrong with the motherboard or CPU. Another question is: why is the error so sporadic?

Here's a thought, as you mentioned PCIe, Power settings under Whatever setting you are using > Advanced > PCI Express > Link State Power Management >setting > if it's on turn it off and see if it makes any difference.

Cool Clam...thanks...
That will be my next step. I currently have another PSU installed. Just turned on the PC a few minutes ago. What a pain; there goes my cable management. But it's worth the test. The more things I can eliminate the better. I'll report back as things develop (or don't develop.)

2 days so far....no crash