Working PC no longer POSTs

[Andanas]

Several weeks ago, I'd started a Windows 10 update, with my PC set to go into sleep mode, once the update was done.  I'd set this up, then went to bed.  When I tried to wake my PC (the following evening) it would not respond.  Id tried pressing the power button a few times, hitting a few keys on the keyboard, and moving the mouse.  Nothing that I tried worked.  The power led on the case was on, and flashing.  Not sure what to do next I held down the power button until the PC shut down. 

 

When I tried to turn it back on, nothing happened.  No fans, no beep, nothing.  I double checked all power and SATA cable connections, RAM seating, GPU seating, fan cables, everything..still nothing.  I began removing components one by one (trying to turn it on each time) til I was just left with a CPU, one stick of RAM and using the onboard video, and still would not boot.  Next I removed the motherboard from the case, (I didn't think there was a short, but I wanted to eliminate that possibility.) and placed it on its box, and re connected only the CPU power, and 24 pin cable.  So the only things connected to the motherboard were the power, CPU, CPU fan, one stick of RAM, and connected to monitor via on board HDMI (and yes, I'd tried all this using the video card too), and still nothing.  Through this whole process the power switch led on the motherboard was lit up, but pressing it, or shorting out the power pins would not work.  I started to think the power supply might be faulty.  I tried the paperclip test, and the power supply turned on just fine.

 

After all that, I'm thinking motherboard went bad, somehow, but before I spend time and money replacing it, I wanted a second opinion.

 

Specs:

MB - MSI Z97 Gaming 7

CPU - Intel i5-4690K w/ stock cooler

RAM - Corsair Vengeance 1866MHz 16GB (4x4GB) 

GPU - MSI GTX 970 Gaming 4G

PWR - EVGA 850G2

 

Sorry for the Length, I just wanted to make sure I'd added in everything I'd tried while troubleshooting this.

[Carlos1010]

What the definition of POSTs again?

[ARikozuM]

Can you get into the BIOS? Have you tried to clear the CMOS?

[r00tH4cK3r]

3 minutes ago, Carlos1010 said:

What the definition of POSTs again?

Power on self test

 

 

As stated above, try resetting the CMOS, and try it with the battery out

[belfouf]

2 hours ago, r00tH4cK3r said:

Power on self test

 

 

As stated above, try resetting the CMOS, and try it with the battery out

agreed.

Just to be sure, did you use to have good temps ? (CPU ...?)

[Andanas]

I cannot get into the bios at all.   When I press the power button (or short the PWR jumper),  nothing happens.   The Cpu fan doesn't spin up,  the fan on the power supply doesn't spin up,  and the post code leds don't light up either.   It's as if it's not even plugged in, even though it is.   And I have checked the plugs both the wall,  and on the surge protector,  trying a couple different ones as well. 

 

I have tried clearing CMOS and even withe the battery out.  As far as I know,  the Temps were fine.   I never noticed any issues in games, and the PC never stopped to throttle down. 

[Andanas]

I do not have another cpu or fan to test.  If it is either of those two,  would I not get some error codes displayed on the led? 

[ARikozuM]

I'd see if MSI can help you out. They're usually good when it comes to speed. It could be that the board is dead.

[r00tH4cK3r]

2 hours ago, ARikozuM said:

I'd see if MSI can help you out. They're usually good when it comes to speed. It could be that the board is dead.

I think its a dead board. 

[r00tH4cK3r]

If the lights on the board aren't even coming on despite everything else working, its gotta be the board. My suggestion is, if the board is under warranty get it replaced. If its not, go with an ASUS or Gigabyte board. I like MSI and all, but they have a lot of people that complain about their boards being DOA or dying on them after a short time, under normal use.

[Andanas]

14 minutes ago, r00tH4cK3r said:

If the lights on the board aren't even coming on despite everything else working, its gotta be the board. My suggestion is, if the board is under warranty get it replaced. If its not, go with an ASUS or Gigabyte board. I like MSI and all, but they have a lot of people that complain about their boards being DOA or dying on them after a short time, under normal use.

It is under warranty,  but this would be the second time I'd be replacing it (first time was for a CPU  socket issue),  so I'm a bit apprehensive about going through that process again.   I may just get a new board,  either ASUS  or Gigabyte, as you suggested.