Computer failing! I NEED HELP!

[Shinyshark]

Ok, So for the last few weeks my computer has been screaming to clean up the (D:) which I did, It's all A-OK now and before I did my PC would fail and go off randomly, The scream says "No signal input" and it goes to black screen, a second later my desktop also shuts down.

I've had 8 of those things today, I've had over 80+ of those things this month and I'm getting sick of it, I've cleared my internet cache for the last 4 weeks, I've cleaned up my (D:) and I am out of help.
Please guys help me, I would really apreciate it!
Especialy @Pick Yer Poison and @san00b who know about these certain things.

Thanks in advance!

 

[Pick Yer Poison]

Heck if I know. Sorry! san00b will probably be more help than I will here.

 

[Razinao]

I'm led to believe 'No Signal Input' means one of the wires is loosely connected. Try ensuring all of your cables are firmly connected to power sources, inputs and outputs.

 

[Shinyshark]

It happens random, I tried plugging them all in extra hard (Without breaking them)
Now time will tell if it still happens.

EDIT : Apparenently it also says "Connection lost" in TS when it happens.

 

[Razinao]

EDIT : Apparenently it also says "Connection lost" in TS when it happens.

When your computer goes into sleep through some variant, i.e, just before shutting down or actual sleep mode, you can usually observe the internet being disconnected.

 

[Shinyshark]

Alright, So I'm not certain if this is the reason but my internet cable has been broke for over 2 months now. I run on my internet cable and wireless internet and the 'connection lost' thing is correct, I've seen my internet disconnect randomly (PC monitor getting a red cross) and then my PC shuts down.

When it shuts down it says "No signal" instead of "No signal input"

Hope anyone can help me further because I am down to my last hopes.

 

[Matt_Allen]

I'm no expert here, but if this is a desktop then maybe a cable is loose inside the machine?
That's all I've got...