[SOLVED] Can' get into BIOS, motherboard does not power anything, GPU fans at max speed.

Jan 2, 2019
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Hello. First time posting here, sorry if I'm at the wrong place. Also a bit difficult to navigate because I'm on my phone. I will try to keep this short.

I have 2 LGA1150 motherboards. First one (MSI) was bought 5 years ago when I built this PC. One day the pc starts shutting down at exactly 30 mins of uptime no matter what I did(even in BIOS). This took a while to figure out and I ended up replacing the PSU first. This did not fix it so I bought a 2nd hand asus mobo and for one month everything was fine.

Early December pc would randomly lose video signal my 2 monitors plugged into the dedicated GPU-then it restarted. Plugged one into the integrated GPU, signal from the dedicated one still died, the integrated one would still be up for a few seconds, then the pc restarted.

A week later, pc can't boot at all, can't enter bios-screen is black no matter where I plug my monitors. Mouse and keyboard are not powered, CPU fan does not start and GPU fans are revved up to max speed, but give no video signal.

I tried almost all the things from the troubleshooting guide here:

Cleared cmos, swapped RAM, tried to boot without gpu plugged in- all in vain.

I've put my gpu and cpu fan in my old mobo and they seem to work fine. Did not swap out the whole build yet. Doing it tomorrow.

I'm not buying another used mobo from 5 years ago and at this very moment I can't afford a new pc.

Is this 2nd asus motherboard dead?
Can it be repaired?

Should I try to repair my first mobo(msi)? I spoke to someone who said the bios chip could be rewritten(dunno if this is how it's called) and that could solve it.
Is it worth it though?
Did I do something wrong to the 2nd mobo? For one month everything was fine- do you think I diagnosed things wrong?

Sorry for the wrong post, I'm a bit desperate.

Specs:
I7 4770, 16GB RAM 1600mhz(4x4 Gb) hyper x red, gigabyte gtx 760, 120gb ssd samsung 840pro
New psu: corsair tx750m
Old mobo: MSI H87-G41 PC Mate
New mobo: asus q87m-e.
 
Solution
Recommend to use one stick RAM with your asus q87, remove the gtx760, and use onboard intel iGPU, only the boot device ( assuming the OS is in the 120GB SSD), clear the CMOS by the CMOS, which is next to the yellow pcie slot.

After don those, boot the PC to see what happens. And can you list what PSU did you have?
Recommend to use one stick RAM with your asus q87, remove the gtx760, and use onboard intel iGPU, only the boot device ( assuming the OS is in the 120GB SSD), clear the CMOS by the CMOS, which is next to the yellow pcie slot.

After don those, boot the PC to see what happens. And can you list what PSU did you have?
 
Solution