Computer will give power, but doesn't display or turn off with soft power button

[techang3l]

I have been fighting with my custom desktop for about a week now, when i'm not at work.
Here is the issue that I have been having.
I usually come home and wake my desktop up from standby and check emails and other stuff and occasionally play games if it's the weekend. But starting about 2 weeks ago I came home from work and went to wake up my desktop but the only thing that happened was my tower lights came on. So i thought to just press power button and turn it off, but that didn't work after 20 minutes I pressed and held the power button to try and force the power off, but that did nothing. So after 5 minutes of holding the power button I hit the hard reset switch on the PSU. So I tried to unplug it and leave it unplugged overnight and then tried to get it to turn on and it did the same thing above. So I opened up the case and checked all wires and contacts, nothing is out of the ordinary, and I thought about what kinds of things could have happened since the day before and nothing came to mind. There has been no new hardware in this PC in over 4 months, and no new bios updates. I tried to cold boot the device with nothing but CPU a stick of RAM for another computer that I know works, and no video card. I replaced thermal compound with artic MX-4. I reseated the RAM, Video card, and the CPU. But still ends with the same thing. I am completely stumped as to what the problem could be, so any help on where to look would be great.

List of current Important Parts in build, (sorry I don't know any of the versions on BIOS):

Motherboard - MSI FM2-A85XA-G65 FM2 AMD A85X (Hudson D4) 8 x SATA 6Gb/s USB 3.0 HDMI ATX AMD Motherboard
Link(http://www.newegg.com/Product/Product.aspx?Item=N82E16813130663)

Processor - AMD A10-5800K Trinity Quad-Core 3.8GHz (4.2GHz Turbo) Socket FM2 100W AD580KWOHJBOX Desktop APU (CPU + GPU) with DirectX 11 Graphic AMD Radeon HD 7660D
Link (http://www.newegg.com/Product/Product.aspx?Item=N82E16819113280)

Cooling - CORSAIR Hydro Series H100i Extreme Performance Water/Liquid CPU Cooler. 240mm
Link (http://www.newegg.com/Product/Product.aspx?Item=N82E16835181032)

PSU - KINGWIN ABT-850MM 850W ATX 12V v2.2 / EPS 12V v2.91 / SSI EPS 12V v2.92 SLI Ready CrossFire Ready Active PFC Power Supply
Link (http://www.newegg.com/Product/Product.aspx?Item=N82E16817121069)

RAM - X2 G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model F3-2400C11D-16GXM
Link (http://www.newegg.com/Product/Product.aspx?Item=N82E16820231672)

GPU - SAPPHIRE 100361-8GVXSR Radeon R9 290X 8GB GDDR5 PCI-E Video Card Tri-X OC Version (UEFI)
Link (http://www.newegg.com/Product/Product.aspx?Item=N82E16814202129)

If I missed anything please don't hesitate to ask.

Thanks in advance,
-Cody

 

[smorizio]

try pulling the gpu and use one ram stick. see if the onboard video will work. if there no video from onboard try a known good power supply. if there no post pull the mb and try posting it from the top of a box to see if there a dead short from the case or case fans. if you get no post with knoiwn good power supply and from onboard video. you could have a mb or cpu failure. check to see if there was any power spikes or lighting near your home. sometime if there a lighting hit near buy it can go back throught the phone/cable lines and kill pc. if there was a brown out or power spike the mb may have burnt out a vrm. try clearing the cmos see if anything changes.

 

[techang3l]

try pulling the gpu and use one ram stick. see if the onboard video will work. if there no video from onboard try a known good power supply. if there no post pull the mb and try posting it from the top of a box to see if there a dead short from the case or case fans. if you get no post with knoiwn good power supply and from onboard video. you could have a mb or cpu failure. check to see if there was any power spikes or lighting near your home. sometime if there a lighting hit near buy it can go back throught the phone/cable lines and kill pc. if there was a brown out or power spike the mb may have burnt out a vrm. try clearing the cmos see if anything changes.

I forgot to add that I do have a surge protector in place. And as for the other part about taking out parts, that is what a cold boot is... Using only core parts needed to turn on the PC, and I tried known working RAM and no extra parts. Just used motherboard, CPU, working RAM, and PSU. Which makes me think I should do some testing on PSU voltages.

 

[skitszo]

http://www.domstechblog.com/signs-of-cmos-battery-failure/

http://www.hdsentinel.com/download.php