PC Wont Boot [AT ALL]

[Radioactivetux]

Hi guys I wasn't 100% sure where to post this because I am not entirely sure on the cause.

Overnight it seems that my computer has stopped working for absolutely no reason; when I press the power button on my computer absolutely nothing happens. Last night I was gaming and using blender before I went to sleep. I turned the computer off via a normal shutdown, I didn't remove the power or hold down the start button.

I have tried jumping the mainboard power header and also using the motherboard power button with no success. I have removed all peripherals and interchanged my RAM sticks, checked every single cable and connection.

The strange thing is that even though my entire computer is powerless (no lights anywhere) the southbridge is still getting warm... I am utterly clueless here.
-Note: Just burnt my finger touching below the SB heatsink.

Help will be greatly appreciated,
Oliver Legg // Radioactivetux

SYSTEM SPEC -
Intel Core i7 4770k w/Corsair H105
AsRock Z97 Extreme4 Mobo
8GB (CL9/1600MHz) Corsair Vengeance Pro RAM
Galax Infinity Black Edition GTX 970
Kingston HyperX 3k 240GB SSD / Samsung 2TB HDD
Corsair RM650 PSU

[Hman1250]

Could be the motherboard if your whole PC is powerless. Ask asrock about this

[JefferyD90]

Unplug the power supply for 10-15 minutes. Let the system get nice and cool and try again.

[Stazy]

Start removing bits and parts from your build to see if it does anything.

First start without the power cord, replace that, also check the wall socket it might be dead without you knowing , after that start removing RAM and start it, then remove the ram and video card and start it, then remove ram video card and hdd and start it, see if you see any life coming back, if not change the PSU, if you have one that you are sure it works, if everything is fine, then it's either the MOBO is dead(as in a short) or something happened to the bios, if you have dual bios check that out also.

 

1 other thing it might be, the Processor(once i forgot to plug the power and the hole pc would not start, so either the power isn't getting to it, or it's dead)

[JoopZ]

Have you tried using tweezers or a paperclip or something to connect the green and black wire on the PSU to test that as it's unplugged from the motherboard to see if things power up from that?

 

EDIT: on the 24 pin connector.

[Radioactivetux]

Don't have anything to jump the 24Pin, no paperclips etc in the house

[Fusion]

When my computer won't boot I go the simple route. 

 

Unplug the power supply from the back. Power button, switch the powersupply switch and press power button, switch it back and plug it in and turn it on. 

 

Literally all you need to do. Unless you have a short of a defective cpu/psu/ram.

[Arc_Jester]

Don't have anything to jump the 24Pin, no paperclips etc in the house

Use a piece of wire but be careful not to shortout anything.