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Question

Computer suddenly won't boot

Hi! My PC has been working fine for 1 1/2 years, however today when I woke up and tried turning it on the fans started spinning, stopped spinning for 1/2 a second and then started spinning again, after that my monitors doesn't receive any signal from the computer. Some USB ports receive power but some does not. But as I said my fans are spinning and my pump is running. I tried pressing the caps lock button on my keyboard to see if the computer was booting but the caps lock button didn't light up so it's not booting.

What I've tried:

Clearing CMOS by removing battery

Holding the power button for 1 minute while psu cord is unplugged

Taken out my graphics card and plugged my monitor to the internal graphics

Tried to boot with another graphics card

Using only one ram stick, I've tried both ram sticks in the DIMM_2 slot


I unfortunately own only one computer so I don't have access to other components to try to find out what's wrong

My system:
i5 6600k
MSI PRO GAMING CARBON Z170
Corsair h60 v2 AIO
Corsair RM1000X PSU
Asus strix RX480
HyperX Memory 2x 8gb

All of the components are not older than 1 1/2 years...

Any help is appreciated! Happy

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All Answers

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Answer
Re: won't boot

In reply to: Computer suddenly won't boot

Two questions:
- Desktop or laptop?
- What's the pump? I've never seen a standard PC with water cooling.

Anyway, this looks like a problem with the motherboard or anything on it (such as the CPU). A repair shop is better equipped to find the cause than you are.

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My computer

In reply to: Re: won't boot

It's a desktop that I built myself last year, and I chose to have water cooling in it.

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Answer
Make it smaller

In reply to: Computer suddenly won't boot

Remove the ram.
Remove the gpu.
Unplug the hdd and disc.

Unplug all ext devices except the keyboard.

Power up and test the keyboard lights.

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Already did

In reply to: Make it smaller

Already did all that, no success...
However I noticed something strange. The keyboard background lights remained on when I turned my computer off... I had to turn off my psu to get them to turn off...

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That could be fine. Why?

In reply to: Already did

Some motherboards keep USB power on so you can wake the PC with a key stroke or mouse move. If it's self built you may have to check the manual but it's a common setting or jumper. Not a sign it's this or that.

Keep reducing the part count. At some point the motherboard comes out of the case for a cardboard test.

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Will do

In reply to: That could be fine. Why?

Will do a test tomorrow on the mobo box...

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Next step

In reply to: Already did

On a piece of cardboard.

Psu + mobo + cpu/hsf.

Nothing else connected.

Does it power up?

If not your down to 3 parts.

You might want to replace the cmos battery just to eliminate that.

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Did the cardboars test

In reply to: Next step

Hi again! I did the carbon test, no success. I got to borrow my sisters psu, no success, replaced the cmos battery with a new one, no success. So I guess it can only be the mobo ram or CPU? I will buy a new mobo and see if it solves the problem, if not I'll return it and try with another new part etc.

Thanks for your help!

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