Help! PC not booting!

[C4nary]

When I turn my PC on, the LED goes on and all my fans spin and my GPU fan spins (EVGA GTX 750ti SC) and it looks like it's on, but my monitor says no signal! (Yes, it's on the right input, and yes, the GPU is plugged into the monitor.) Thanks in advance for all suggestions.

 

[alexoiu]

New or old setup? Can you attach a case speaker to the motherboard? Can you test different monitor or graphics card? What motherboard and CPU?

 

[C4nary]

Old setup, new GPU and PSU. The monitor isn't the problem. Motherboard: AsRock A55M-HVS CPU: AMD A400 APU. Tried a different GPU.

 

[synphul]

Have you tried plugging the monitor into the graphics port from the onboard display? Maybe when you changed gpu's the bios reverted back to using onboard video as the default. Not sure why it would, but it won't take but a few minutes to check.

 

[alexoiu]

Does it work if removing the GPU and using the onboard?

 

[C4nary]

Tried both solutions, no luck. 🙁

 

[C4nary]

Also, my previous GPU is a Radeon HD 5450.

 

[C4nary]

Also again, no beep when PC boots.

 

[synphul]

I might have said your hard drive, but it should still attempt to post and at least reach the bios screen even with a dead hdd. Kind of a long shot, but maybe try turning off the power switch at the power supply (if it has one). Unplug it. Remove the cmos battery and give it a few minutes to make sure the cmos is clear. Replace the cmos battery, plug the power cable back into the power supply, switch the switch in back (if present) and then try to power on.

 

[C4nary]

I took out the cmos battery, waited for 3 mins, put it back in, no luck. ;(

 

[synphul]

You might need to go to a shop for this one. It's either that or start blindly replacing parts. A good shop will have all sorts of testing equipment, voltmeters, cable testers, psu testers etc to pinpoint the actual problem. Most of the basic problem solvers have been tried already to my knowledge. Without actually hooking up to diagnostic meters and tools, all of these are just educated guesses. Though uncommon, it's always possible there's an internal fault with the psu, a broken pathway on the motherboard somewhere etc and trying to find it without tools is like trying to find a needle in a haystack.

 

[alexoiu]

If no beeps when starting the board with only CPU and CPU fan installed (CPU fan spinning and a case speaker connected) then it's either a board or a CPU issue.

 

[chanuka]

It's either CPU or Motherboard. Better to test the PSU as well.( You can test the PSU with a Multimeter or you can test it in a shop)
PSU test manually - https://www.youtube.com/watch?v=ac7YMUcMjbw

Get your CPU and motherboard tested. Good luck

 

[C4nary]

Thanks for everyone's support! I'm gonna call a friend to help me.