PC can boot but no display

[Meng Hoi]

Hi guys, I need help

Recently when I turn on my PC the monitor shows a "no signal" display and both my keyboard and mouse has no light indicating that it is connected, the thing is sometimes my PC would be able to boot without problem but it will have the same problem after I shutdown my PC and try to boot again.
I tried to unplug all the cable and reinsert it making sure all the cables are connected properly but the problem still persist.
All the fans, led light are working when I turn on my PC
Any idea what's wrong with my PC?
Thanks in Advance for your help

 

[Louise Porkolt]

Hi there,

I had the same with an old PC I refurbished, I could hear the fan, no lights on kbd or mouse and it didn't boot !
I had to turn it off by pushing the powerbutton for 5 sec.

it rebooted sometimes ok, sometimes not: finally I changed the whole thing with another configuration.

Cheers, Louise.

 

[Meng Hoi]

Hi there,

I had the same with an old PC I refurbished, I could hear the fan, no lights on kbd or mouse and it didn't boot !
I had to turn it off by pushing the powerbutton for 5 sec.

it rebooted sometimes ok, sometimes not: finally I changed the whole thing with another configuration.

Cheers, Louise.

Thanks for the reply, but how do you change the configuration ?

 

[Louise Porkolt]

Sorry, by configuration I meant: other hardware (motherboard).

 

[Louise Porkolt]

did you check the PSU if it is giving the right current ? (or try another PSU).

Did you try to unplug some peripherals and boot ? if it boots, plug the peripherals in one by one !

Did you assemble the PC yourself (if YES: check if all connections are set correctly ?)
sometimes a bad cable can give strange behavior.

Let us know.
Cheers, Louise.

 

[Meng Hoi]

I did all of the above , and I think I have a bad motherboard because the the no beeps when I remove both the ram and video card