PC boots up but no display and keyboard not lighting up

[Probrum]

My PC froze and turned off the other day. It wouldn't turn back on so I got a new PSU and mobo but now there is no display on my monitors, the fan is running at 100% and my keyboard.is not lighting up

 

[SquallStrife]

I had a similar problem when building a new PC. As far as I know, several things could cause this, but in my case, it was because RAM wasn't installed properly into the motherboard - but also one of the power cables wasn't plugged all the way into the motherboard so the PC speaker didn't work. Maybe if you double-check the power cables the PC speaker will start working and give you a sound signal for your specific issue.

 

[crjdriver]

My PC froze and turned off the other day. It wouldn't turn back on so I got a new PSU and mobo but now there is no display on my monitors, the fan is running at 100% and my keyboard.is not lighting up

OK, no one [other than you] has any idea what hardware you are running. In order to help you, you need to post a LOT more info. Post ALL of your exact system specs; ie exact motherboard, exact processor, exact ram, etc, etc. Do not post "500W pw supply" Post the exact brand and model# Do that for ALL of your parts.

 

[AmateurJohn]

Yes, check your connections. Display isnt showing, maybe check your graphics card, make sure it's in there correctly. Specs definitely would help.