Question Keyboard not working

[Amalkapinkasova]

I have tried to upgrade my PC - changed CPU, GPU, added 8GB RAM and changed the power supply to keep up. However after turning the PC on only the BIOS starts up and the PC doesn't continue with the boot up. When I try to connect the keyboard it doesn't power up, only if I turn on the computer with the keyboard already plugged in I can see it's getting power but PC doesn't react if I press any keys (for example to go to bios setup). Hardware-wise it seems everything is running ok.

I had trouble with bios update before I changed the components though. The bios seemed to have finished updating but when I tried to turn the PC back on, only black screen showed, nothing on it, not even an underscore, just the screen lit up but stayed black. I read it can be caused by too old GPU so I went ahead and tried to chnage the components hoping it will jog it up. Now at least I get to the point where the motherboeard logo shows with the possibility to start up the bios setup but can't do anything here.

Is there a way to fix this? How can I get my PC running?

 

[Lutfij]

Welcome to the forums, newcomer!

We're going to need more info to make sense of your issue. When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Since you changed parts we'll be seeing two sets of specs, one for before the upgrade and one for after the upgrade.

I had trouble with bios update before I changed the components though. The bios seemed to have finished updating but when I tried to turn the PC back on, only black screen showed, nothing on it, not even an underscore, just the screen lit up but stayed black.
Some motherboard's have a sequence you need to follow in order to upgrade your BIOS. Can you state the BIOS version prior to your upgrade process?

Moved thread from Computer Peripherals section to Systems section