[SOLVED] PC posts but does not recognise any input - can't get bios

Yrors_

Distinguished
Nov 21, 2015
57
1
18,545
Hi,
So I upgraded my computer today with a new 5600x and an Asus b550-a mobo. However after finishing the build, I am unable to get to the bios despite the system posting. Asus' qled has a constant orange light on dram, but I have switched around all the ram sticks and am pretty certain of their functionality (they were in my previous build). Also after this the 'boot' light appears green, suggesting that the dram light is just supposed to come on during post. I have also unplugged all drives and usb headers (excluding the keyboard).

Specs:
Mobo - Asus b550-a
cpu - Ryzen 5 5600x
Cooler - CM Hyper 212x
Ram - Kingston Hyperx fury black 16gb (4x4gb) 2133mhz
gpu - gigabyte g1 gaming 1070

Any help?
 
Last edited:
Solution
Did you update the BIOS before switching the CPUs?

use only one RAM in 2nd slot next to the CPU(left to right)

try an old GPU (non Uefi)