Apologies in advance for the long post, but I'm going to try to be clear about what I did because I suspect it is that which caused the problem.
What started with my tripping over a USB wire connected to the front of my PC has ended with it being unable to turn on. The force with which the wire was pulled out exposed the teeth of the usb port on the inside - the black plastic came off inside the plug. I thought nothing of it until I booted up and the initial motherboard screen that usually only appears momentarily told of an excessive voltage in one of the USB ports. I thought this had something to do with the accident so decided to simply disconnect the front USB ports. To do this, I pulled out the wire plugged in a socket on the motherboard marked USB1314 (circled in image linked below), ostensibly coming from the hub at the front of my case, as well as a SATA cable stemming from the same place (which I assume is for the e-SATA port which I don't care about) in order to free up a SATA socket for my new harddrive coming in a few days.
Now here's what complicates things. I don't have much physical space so I do this kind of maintence on an old table top which I rest on my bed, a bodge which as it turns out doesn't quite provide a flat surface. I was clearing out some old dust when the door rang; when I came back up the PC was on its side where it had previously been standing up. Feeling like a bit of an idiot, I checked for any obvious physical damage but it seemed ok. I suspected I'd gotten away with it but I left the side cover off the case for the event in which I hadn't, and plugged all the external wires back in for a test run.
I hadn't - when I turned it on there was no post-boot beep and my monitor detected no input (I also tried plugging the monitor into the integrated GPU instead of the graphics card, with the same result), so naturally as someone who doesn't know much about the bowels of a computer I tried undoing all the changes I'd made, not that I could see why they should have caused such grevious damage had I only done what I'd intended. I booted up again and this time heard the beep, and some text on the monitor which read something along the lines of "please connect the PCI-e wires on this graphics card and reboot." And then I saw indeed that the wires had been partially knocked out by the fall; there was a red LED on the graphics card confirming this. At this point I also saw that either the fall or my clumsy hands had accidentally switched this switch (marked TPU I II), so I switched it back to its original position (I), made sure the graphics card's wires were properly connected, and tried to boot again. Nothing. This time it wouldn't even turn on. And no matter what I do I can't get it to turn on again. So I don't know how I've done it but I've somehow managed to make things much worse than they were to begin with. I'm hoping someone can help me work out what to do from here.
Edit: Forgot to include PC specs:
HAF X case
Nvidia GTX 770
ASUS Z87-A motherboard
Intel i7 processor
Corsair HX850 PSU
What started with my tripping over a USB wire connected to the front of my PC has ended with it being unable to turn on. The force with which the wire was pulled out exposed the teeth of the usb port on the inside - the black plastic came off inside the plug. I thought nothing of it until I booted up and the initial motherboard screen that usually only appears momentarily told of an excessive voltage in one of the USB ports. I thought this had something to do with the accident so decided to simply disconnect the front USB ports. To do this, I pulled out the wire plugged in a socket on the motherboard marked USB1314 (circled in image linked below), ostensibly coming from the hub at the front of my case, as well as a SATA cable stemming from the same place (which I assume is for the e-SATA port which I don't care about) in order to free up a SATA socket for my new harddrive coming in a few days.
Now here's what complicates things. I don't have much physical space so I do this kind of maintence on an old table top which I rest on my bed, a bodge which as it turns out doesn't quite provide a flat surface. I was clearing out some old dust when the door rang; when I came back up the PC was on its side where it had previously been standing up. Feeling like a bit of an idiot, I checked for any obvious physical damage but it seemed ok. I suspected I'd gotten away with it but I left the side cover off the case for the event in which I hadn't, and plugged all the external wires back in for a test run.
I hadn't - when I turned it on there was no post-boot beep and my monitor detected no input (I also tried plugging the monitor into the integrated GPU instead of the graphics card, with the same result), so naturally as someone who doesn't know much about the bowels of a computer I tried undoing all the changes I'd made, not that I could see why they should have caused such grevious damage had I only done what I'd intended. I booted up again and this time heard the beep, and some text on the monitor which read something along the lines of "please connect the PCI-e wires on this graphics card and reboot." And then I saw indeed that the wires had been partially knocked out by the fall; there was a red LED on the graphics card confirming this. At this point I also saw that either the fall or my clumsy hands had accidentally switched this switch (marked TPU I II), so I switched it back to its original position (I), made sure the graphics card's wires were properly connected, and tried to boot again. Nothing. This time it wouldn't even turn on. And no matter what I do I can't get it to turn on again. So I don't know how I've done it but I've somehow managed to make things much worse than they were to begin with. I'm hoping someone can help me work out what to do from here.
Edit: Forgot to include PC specs:
HAF X case
Nvidia GTX 770
ASUS Z87-A motherboard
Intel i7 processor
Corsair HX850 PSU
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