PC crashed after launching fallout 3, now it wont even boot, CPU and GPU fans won't turn on, case and PSU are fine.

[desert_eagle]

Ok so I was messing around with some fallout mods and when I launched the game it crashed (which is to be expected), but the application itself didn't crash, the whole PC did, as the monitor said 'no hdmi signal detected', after waiting a while I held the power button down to force the PC to turn off.
When I turned on the PC again the Case LED's, fans and the PSU fand turned on and where working fine, the CPU fan and GPU were not running and i got the no hdmi signal detected again. I'm stumped at what's wrong here, I don't think it's any loose wires as I haven't moved the PC in months, and it's a bit of a coincidence that everything went after I launched fallout after installing some mods.
I do remember this happening before but the problem somehow fixed itself after 2 restarts so I thought nothing of it.


Specs:
i5 4570
Msi gtx 670
Corsair CX500m psu
Msi H87-G43 motherboard
Windows 7

I've had this PC for over 2 years now with very few hardware issues

Thanks.

 

[Sapphire Thunder]

My guess is that the motherboard might have gone bad.
Either buy a new (preferably H97 board) or go take it checked in some shop.

 

[desert_eagle]

My guess is that the motherboard might have gone bad.
Either buy a new (preferably H97 board) or go take it checked in some shop.

Hmm maybe but the case fans/led's get there power from the motherboard so im not too sure, is there any way incan check to make sure at home?

 

[Sapphire Thunder]

Hmm maybe but the case fans/led's get there power from the motherboard so im not too sure, is there any way incan check to make sure at home?

Only way to test it, is with another cpu or another motherboard.

 

[Guest]

Make sure all the power cables are connected, clear CMOS. Get a motherboard speaker, it will help you more than anything if you get one. It will make certain orders of beeps, they could tell you a lot about the system. $5 on Amazon, get that before switching CPUs and motherboards first.

 

[Guest]

Also, it could be a dead/faulty PSU. The corsair CX series are rated in tier 4 for PSUs, they are not designed for heavy load constantly. Also, the PSU is likely running at %80 during gaming because it is 500w, the minimum requirement for the 670 is 500w.

 

[GeoMC]

Nevermind guys, the most basic thing worked xD
I cleared the CMOS And voila!
Thanks anyways