Power led blinking, can't install USB drivers (after graphics crash?)

[Mathias_6]

Hello,

so, I had done benchmarks of my 1070 with shader toys and demos. One of them crashed the graphics driver (although the card was stable elsewhere). This time the driver didn't recover on its own, like it normally does when this kind of thing happens.

When I rebooted, the graphics driver was back, but the mouse was somehow slower. Then I noticed that the USB drivers weren't working correctly. My motherboard is the Asus Z170i Pro, so downloaded the drivers for Win7 from the website and tried to install them, but the whole computer hung up and the power led started blinking.

So I have no proper USB drivers at the moment, which is why the mouse is extremely slow and the external hdd can't be used, and the power led is constantly blinking, and apparently trying to install the USB drivers hangs up the whole system.

Seems to be something serious, unfortunately, but I can't explain why. The PSU is a Corsair Vengeance 500W, with DC-DC, and solid quality, and it shouldn't be destroyed so easily.

But I haven't really tried anything yet. I would try system recovery, but I have no recovery points from before that.

Any ideas about the issue?

 

[Mathias_6]

After disconnecting the PC from power for a longer while the power led doesn't blink anymore. The mouse is still damn sluggish. Turning up speed hardly helps since it's still a little too slow and too imprecise.

I also cleanly uninstalled the graphics driver after this. I just installed the chipset drivers again, which didn't cause a hang-up this time, but did before.
I tried to re-install the USB drivers but after uninstalling it hung up, with the standard windows notification that it failed to install drivers for new hardware afterwards (so maybe that's when it froze).

Any idea why the driver reset of the grahics card might have caused this issue? It was fairly normal use and load, even the onboard graphics could probably have done it without crashing (but far more slowly while it worked), and the "overclock" was 100 MHz on the core and 300 MHz on the memory, which you can look up everywhere for Pascal and a MSI GTX 1070 Gaming X is almost nothing and perhaps more importantly was stable in everything else, incl. Furmark.

But regardless if it was unstable, it hardly explains this problem.

I successfully reinstalled the drivers, the mouse is still sluggish, the external hdd can't be found.

 

[Mathias_6]

Making some progress. I used a Driver Updater to look up which drivers could use updating (even if they're a bit of a rip-off for downloading and installing the drivers, these programs are really great for that). It said the Intel extensible host controller was missing. Downloaded that, and the mouse seems to work normally again.

Still, I would like to know what caused this. And note that the led was blinking and in fact I couldn't install anything related to USB when that was the case, which is very strange for a basic software issue.


I used the graphics card within normal "everyday" limits. Keep in mind it is high-end, and supposed to function normally (of course). The program was the GPU Caps Viewer and one of the demos there crashed, but only when touching the window frame or trying to change its size (which must trigger some massive load or bug).

How can this happen?

 

[Mathias_6]

By the way, the GPU Caps Viewer also crashes with graphics card default settings if one tries to alter the (small) window size of the Geomechanial demo. This is a normal, "trustworthy" test that people use, I suggest some of you confirm this to advance problem resolution and narrow down the issue (again: normal, trusted graphics test). I suppose your drivers are still safe if you have no overclock active. Even so, what is up with that... Even Furmark has no such issues.

Besides, I don't want to crash your system but know IF this completely ordinary graphics demo crashes! Look up the program, they do all kinds of big stuff, I think even GPU-Z or it's at least where you download it.