HeavyMetalGamer

Yeah I still wanted to sanity check myself at the very least because I really didn't want it to be a bad board and that's what I had a feeling it was because of the few lights on the board lighting up. Thank you!

So a few years ago I built my friend a gaming computer for him, it currently has a second had i7-7700k, MSI Z170 gaming m7 motherboard, 8GB x 2 Trident Z RAM, MSI Gtx 1070, and a Corsair CX750M PSU. The other day he told me it shut down on him randomly and wouldn't turn back on. I'm now working on it and it is at the point where the internal power button and the CMOS clear button on the back light up but the computer does absolutely nothing when either the case or internal power button is pressed. No fan spin up, no other lights, nothing. Tried clearing CMOS, took it down to a single stick of RAM, swapped which stick of RAM was the single stick, took out the gpu, reseated the cpu and redid the mounting of the aio (1st gen kraken 240mm). At this point I'm thinking maybe something shorted on the motherboard but I'm wanting to get some other ideas. Thank you in advance!

Finally got to check my PSU and that worked just fine. So dead MoBo it is

I mean it looks fine to me, also was able to use another card and it still didn't boot up, so back to the MoBo or PSU

It was removed the only reason I put mostly is because the kraken cooler was still mounted by the radiator.

Update: I mostly removed my graphics card (gtx 1080ti with the kraken g12 and kraken x62 instead of the stock asus cooler) and it no longer power cycles. It instead just turns on then off after literally half a second Update 2: CPU is fine. Was able to throw it in a friends build to test it and it booted up with it just fine. On to the next test being PSU I guess.

That's the thing, I heard the pop but didn't see any smoke or smell anything weird. I have yet to take off the PSU shroud and inspect the capacitors there but all the capacitors I could see on the MoBo look normal.

I have the EVGA G3 750. Haven't had any problems with it before, but is possibly about 2 yrs old

Changed out some hardware, specifically went to the Corsair h150 and used the Kraken G12 for my GPU. Went to start it up to test it out after everything was installed and it powered up then shut down just as quickly. Powered it back up again heard a loud pop and then everything shut down. Now if I try to power on it does a weird power cycle (on and off about as fast as a car blinker) for a random number of times where it then "powers up" where almost all the leds come on and most of the fans spin up but the QCode/debug led never changes from 00. If I had to place my bets on anything it would be between a dead CPU or a dead MoBo. Just would like some insight as to how to tell the difference between the two. Oh should also mention that I'm running the Asus Maximus IX Hero with a 7700k. I tried reseating the CPU and RAM and that didn't change anything. The pins in the socket all looked fine as well.

Well as an update, I think I have a second dead pump. Going to have to go through the RMA process on both that I have but in the meantime going back to using the Kraken x62 but then also ordering the Kraken g12 to go on with the x62 on my gpu and then also getting the H150i for my cpu so I can have my rig back while I figure out this nonsense, which is all that I really want at this point.

So against what you're supposed to do I pulled the res and pump apart, basically like Jay did in his video just to see if it was trying to do anything and no luck there either. Doesn't click and doesn't act like it's trying to do anything. So to me it seems like there just isn't any power going to it or that the pump is dead. One of the few times I actually wish I had a molex fan to see if that cable from my psu was the problem.

This is what it should look like in the BIOS correct. I've tried moving it around a bit I'll try a few different angles of tilting it around just to see. I can't hear or feel the pump doing anything which worries me since this is the second pump I've tried already.

So finally decided to tank the jump in to custom water cooling at about October of last year and have had zero luck with it since the start. My main problem being my pump. It will not pump the fluid no matter what I have tried to do. It is the EK-XRES 140 Revo D5 RGB PWM (incl. sl. pump). I have tried with just the pwm connector, just the molex connector and both. I'll be attaching pictures in a comment after posting with my phone. Just need some ideas in case there's something obvious I'm forgetting. Thanks ahead of time!!

It's Cyberpower, I already had to upgrade their PSU since the one they used was a $24 500W Apevia unit that didn't have a gpu power cable. The RAM will probably be the next thing for that reason since Ryzen itself feeds off memory.