My PC won’t boot

[momchilgeorgiev550]

So I was playing Hearthstone and listening to some music on iTunes. After my game ended I got up for a break and to grab some food from the kitchen. Once I got back in the room I had a black screen I tried moving the mouse thinking my PC is asleep but nothing. I restarted it and all the fans start running, the lights are on but the monitor doesn’t get anything on and there is no beep sound at all. I tried cleaning the fans, checking the CPU, the video card, messing around with the cables including the power button cables but nothing. I don’t know what to do so I need your help.

 

[jay32267]

My first thoughts go to the power supply as the cause. If I had a spare I'd swap it in.

Other things you can try...shut down, unplug, go through everything and re-seat everything ...all cards cables etc. If you want...you can reseat the processor. I'd wait on that until you see if reseating everything else works.

...but I'm still thinking good chance it's the PSU.

I would be measuring voltages on that.

 

[momchilgeorgiev550]

My first thoughts go to the power supply as the cause. If I had a spare I'd swap it in.

Other things you can try...shut down, unplug, go through everything and re-seat everything ...all cards cables etc. If you want...you can reseat the processor. I'd wait on that until you see if reseating everything else works.

...but I'm still thinking good chance it's the PSU.

I would be measuring voltages on that.

I opened the PSU to clear it aswell but nothing happened. Now I will try unplugging and reseating but trying another PSU will be possible tommorow in best case scenario. As for the volt measuring I don’t have the device so I guess I will have to borrow from someone

 

[jay32267]

Swapping another PSU in is probably easier than measuring the voltages anyway.

 

[momchilgeorgiev550]

Swapping another PSU in is probably easier than measuring the voltages anyway.

Welp I did a lot of tests including reseating but still nothing. I guess it is either the voltage or it might be the 2032 battery since the PC is quite old and I have no clue what other problem there might be

 

[jay32267]

Well.....I'd swap the battery if you think it's low....but I don't see that causing the crash.

 

[FiggyHunter]

Well.....I'd swap the battery if you think it's low....but I don't see that causing the crash.

I honestly don't think that would help, at all.

 

[jay32267]

It won't hurt.

 

[momchilgeorgiev550]

Switching the battery did nothing however now when I press the power button sometimes the fans start then stop for 2-3 seconds and start running again

 

[jay32267]

I'm still focusing on the PSU being the problem. The symptoms you are having are in agreement with that...although it still could be something else....but I'm thinking from a "most likely" standpoint.

 

[momchilgeorgiev550]

Time for a very late update. I just tried running the PC with another PSU and it still didn’t work. So what now if it is not the PSU could it be the HDD for example

 

[jay32267]

Well...now I'd focus on the motherboard. Keep in mind, these problems are not easy to diagnose in a forum like this. So all I can tell you are what I think are "most likely" cases.

 

[R_1]

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
step 17 is there a speaker connected to the front panel? if not get one connected.

canned diagnostic speaker rant
The diagnostic speaker is the motherboards main diag feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip
https://wesbellwireandcable.com/images/cutwire.png
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant

now there is a speaker boot the system and listen for beeps. if you are getting no beeps, try forcing one. power off the system and remove all the RAM. Boot the system, the speaker should beep like an astro-droid*. if you cannot force a beep code in this manner it has been my experience that the motherboard is toast

*https://i.pinimg.com/736x/bb/b9/7f/bbb97fcaed3e15afce60f9a87ab6f567.jpg

 

[momchilgeorgiev550]

Well...now I'd focus on the motherboard. Keep in mind, these problems are not easy to diagnose in a forum like this. So all I can tell you are what I think are "most likely" cases.

I see you. So how exactly can I see if it’s the motherboard? Any tips for a noob like me

 

[momchilgeorgiev550]

As for your suggestion R_1 I did the RAM removal first since I’ve done it before and know the sound however there is no sound at all so I guess that confirms that the MB is the problem.

 

[jay32267]

Well....as I said....that's what I would focus on next. If it is the motherboard, generally there's not much to do but swap another one in. Motherboards are generally cheaper to replace than repair.