PC stability issues. Please Help!

[Jayoplus]

PC Specs
CPU: Intel core i7-4930 Liquid cooled by Corsair h100i
MoBo: EVGA x79 dark bios v2.13
Memory: 4x corsair dominator 8G (32G total)
GPU: EVGA gtx 980(previously 2x 780ti)
PSU: EVGA 650gq PSU (previously xfx pro 850)
HDD Main: Samsung 840evo 250G ssd
HDD2: Seagate ST2000 2Tb SSHD



Hello all,
So I have read a lot of posts on this forum to try to see if others have had the issue I'm experiencing but nothing I've tried has worked. My issue started March 30 (so as of this writing I haven't used my pc for over two months now). Basically I came home after work to find that my pc would not power on. It would either not post or post to code19 or boot up to the login screen and power off by itself.
After speaking to several people, first thing I did was replace my PSU and still got the same issue. Then I replaced my GPU and still the same issue. I spoke with my mobo manufacturer (EVGA) and got a replacement, same issue. And in my follow up conversation with EVGA, they said they found no issue with the mobo I sent in. They suggested I look into replacing the CPU. So, I called intel and got my cpu replaced. Same issue.
I'm posting now because all of the stuff I described above has taken the past two months and I just got to the CPU install process today hence why I'm posting. The pc actually stayed on long enough for me to log in before shutting off after I installed the replacement CPU. I have been reading more online to see if the issue is with my heatsink but have found nothing.
So yea at this point I'm stumped as to what else to do. I've tried going into my bios at startup but the pc even shuts off while I'm there so I can't stay in there long enough to do any meaningful investigations. I have performed test with each memory stick and they appear to give the same result. Btw, I never even oc'ed the pc to begin with so all my bios settings were default.
I should mention I built the PC in 2014 and this is the first issue I've had with it.

Help please!

 

[the nerd 389]

Can you check the pump speed in bios?

Also, have you tried turning the machine on without the GPU installed or with a different GPU?

Lastly, does it stay on if you remove the drives?

 

[Jayoplus]

Can you check the pump speed in bios?

Also, have you tried turning the machine on without the GPU installed or with a different GPU?

Lastly, does it stay on if you remove the drives?

Hi
I have tried to check pump speeds but I can't get enough time to sift through the bios. My mobo uses a UEFI bios screen so I am not even sure where to immediately go to check and I don't get to spend enough time in there to see before it powers down.
I have changed out the GPU. That was one of the first things I changed. The GPU in my pc right now, the gtx 980 is new and a replacement I got for the two 780ti that was in there before.
I did disconnect my secondary hdd Nd run the machine with just the ssd since that's the one that has windows installed. And it still shuts off.

Edit: one thing I did notice on the bios screen before shut off was the CPU temp in the 90s. I know this is not normal. Perhaps the liquid cooling unit is failing? But no way for me to check the pump. I think I'll just have it RMA'd.

 

[the nerd 389]

It's definitely the cooler. This is what happens when a pump fails.

 

[Jayoplus]

So just installed the replacement cooler and that solved the issue - thanks a lot for your help @the nerd 389. I do have a new issue now where I'm getting absolutely no sound, but I hate to start up a new thread for that issue...
Basically, I only hear some sort of static feedback from my headset when I'm supposed to hear audio (for instance when I'm supposed to hear the windows start up audio, or maybe some error sound) and I am getting no audio or audio detection from any of my hardware - I know the hard head set works because I plugged it into another device and it works perfectly. I stream using OBS, and I tried to do a test on there and OBS popped a message saying it couldn't detect any desktop sound input (mic or speakers). I get a "failed to play test tone" when I try to test my installed playback device.
I have tried everything short of a fresh windows reinstall... Disabled/Enabled drivers, uninstalled/reinstalled drivers. Even got a PCIe sound blaster card and disabled the onboard sound and still same. I would really hate to have to go through a reinstall... Especially since I have to go through backing up so many files that I need. Ugh...