Hardware & Technical Computer power failure after plugging monitor back in, someone please help?

Hey ladies and gents...:(

Just a few minutes ago I had to switch to my spare old laptop to post this because my main gaming PC did not like the fact that I plugged back in the monitor after I heard something drop; I went to my desk and found out the DVI plug for the monitor had loosened up over time and it fell. The computer was off, of course. So I went to plug it back in and tighten the screws, and at that point I noticed some scrapes and and slight damage on the plastic grip covers around the screws. I figured it was just a simple wear-out on the plastic covers and it was nothing to worry about. When I turned the computer back on, less than two seconds the computer had shut itself off, then back on again and then back off and repeating. I immediately went to the back of my computer and turned off the power supply switch to prevent further damage. I waited for a bit then turned the power supply switch back on and then I turned on the computer. Turned the monitor on, no signal. Then I heard the graphics card's fans were running at full blast and I immediately held the power button down to prevent the fans from blowing out. The problem is persisting.

The thing is, my computer was running perfectly fine with no little signs of trouble before this happened. It's was in really good shape as well. Is it just a blown out capacitor in the power supply? Someone please let me know, thanks.
 
I'd take the graphics card out and see if it'll boot from integrated graphics.

Check your heatsink/fan and make sure they are fully attached. Reseat your RAM. Good luck.

If your PSU has gone bad, it may have done so in a way you cannot fully test without specialised equipment. I recently tried three PSU's (all tested good under a decent load) and none of them were 100% operational with my new graphics card.
 
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I'd take the graphics card out and see if it'll boot from integrated graphics.

Check your heatsink/fan and make sure they are fully attached. Reseat your RAM. Good luck.

If your PSU has gone bad, it may have done so in a way you cannot fully test without specialised equipment. I recently tried three PSU's (all tested good under a decent load) and none of them were 100% operational with my new graphics card.

Thanks. I decided no to do that because Iv'e noticed something much different. Iv'e just looked under the GPU where the fans are and I realized it's not the fans making noise because all 3 GPU fans aren't moving at all (which is normal for my 980 TI, they automatically turn on if the heat goes above 30 Celsius) and I know it isn't my CPU liquid-cooler radiator fans, either because they have a different noise. Iv'e followed around where most of the blowing sounds are and it appears to be the fans just right behind the front vent/grille of my computer case.

Iv'e looked inside with a flashlight. Nothing appears to be bent except for a dent in the front of the computer's frame. I'm thinking some of the wiring that I can't see could have been damaged, because the front fans are fully plugged inside. Maybe I could have accidentally bumped hard into the front of the plating while I plugged the monitor back in, that is the DVI cable going into the monitor, not into the computer. But i'm amazingly confused on how a problem with how the front fan's wiring could even possibly escalate into a power and monitor problem? Iv'e placed my ear near the power supply and the noise was still coming from the front fans instead.

I have a little LCD component attached to my motherboard which can display at least two letters/numbers, saying what stages/situation the computer is in. Apparently it is saying "SS" which I assume is "Startup Sequence" and would usually change to "AO" once startups were done. Something is probably blocking the startup sequence then. When a computer is turned on, the fans will go full speed and then go down during a startup. Apparently, the CPU fans are doing that perfectly normal except for those two front fans, and/or possibly the power supply fan.
 
If those front fans have somehow shorted out - your power supply will not like that at all, but short of mice chewing cables or insulation failing really badly - I can't imagine how that would cause this.

Simply unplug those fans. For the purposes of testing, it will do no harm. I'd also try and get a peek of the motherboard tray, if a DVI retainer screw has come loose and fallen onto the board, that will cause all sorts of nasty issues :(
 
If those front fans have somehow shorted out - your power supply will not like that at all, but short of mice chewing cables or insulation failing really badly - I can't imagine how that would cause this.

Simply unplug those fans. For the purposes of testing, it will do no harm. I'd also try and get a peek of the motherboard tray, if a DVI retainer screw has come loose and fallen onto the board, that will cause all sorts of nasty issues :(

It seems that the DVI is connected to the GPU instead of the motherboard. I do remember tightening the DVI screws into the monitor a little too much though.
 
It seems that the DVI is connected to the GPU instead of the motherboard. I do remember tightening the DVI screws into the monitor a little too much though.

Unplug the GPU, remove it from the board, turn machine upside down and see if anything falls out, test boot with a video connection to the motherboard's integrated graphics.
 
I have a little LCD component attached to my motherboard which can display at least two letters/numbers, saying what stages/situation the computer is in. Apparently it is saying "SS" which I assume is "Startup Sequence" and would usually change to "AO" once startups were done. Something is probably blocking the startup sequence then. When a computer is turned on, the fans will go full speed and then go down during a startup. Apparently, the CPU fans are doing that perfectly normal except for those two front fans, and/or possibly the power supply fan.

ASUS motherboard?

If yes, I don't think it's SS but probably '55', which unfortunately means "Memory not installed". To be sure, check your bible*

*your motherboard manual :)
 
You need to check whether all the components of your computer are functional or not. Remove everything except your CPU and start your PC. You should get an error code displayed on your motherboard. It should show missing RAM. If you have a PC speaker it should also beep an error code for missing RAM. Then add one RAM module into the slot. If it is functioning you should get another error code, it should be a code for missing GPU. Insert your GPU, if it is fine then the latter code should not be displayed any more.

You should somehow test if your monitor is functioning, e.g. by connecting it to another computer. Preferably take another DVI cable. Test your GPU on another computer if possible. Also if possible perform all the tests with another PSU.
 
Ok, so the situation turned out to be out of my knowledge, tested the stuff out as suggested above and it looked very much like an intense motherboard issue that required me to physically bring the rig to the tech shop. Explained everything and the test results and symptoms. They took a good look into it and there were two problems. The first problem was deep inside the PSU, there was a burnt cartridge fuse (the little glass tubes with the silver caps at the end) and the second problem was a corrupted CMOS battery. Luckily, the warranty wasn't out of time yet. :)

And now, i'm able to post this back on my gaming rig now and play ED like if my PC just came right out of the factory. Thanks for your help though, guys.
 
Ok, so the situation turned out to be out of my knowledge, tested the stuff out as suggested above and it looked very much like an intense motherboard issue that required me to physically bring the rig to the tech shop. Explained everything and the test results and symptoms. They took a good look into it and there were two problems. The first problem was deep inside the PSU, there was a burnt cartridge fuse (the little glass tubes with the silver caps at the end) and the second problem was a corrupted CMOS battery. Luckily, the warranty wasn't out of time yet. :)

And now, i'm able to post this back on my gaming rig now and play ED like if my PC just came right out of the factory. Thanks for your help though, guys.

Good news. And fly safe ! Commander

:)
 
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