Question PC won't go to sleep

[jwatson2999]

Specs
Asrock Z390 Phantom Gaming 6
ASUS GTX 1070
I7-8700K
DDR-3200 (Corsair CMK16GX4M2B3200C16)
500gb SSD
250gb m.2
2tb HDD

Issue started last week when I put computer into sleep monitors will turn off, however PC will remain on with lights. Never had issue prior. Appears it started after updating BIOS from 1.30 - 4.20 which apparently failed. Right now it is set at 4.0. Verified sleep power is normal where it should be set.

Any suggestions to check on my side?

 

[Fix_that_Glitch]

The bios update for 4.20 was just to let the motherboard use the 9900k cpu. It is never a good idea to update bios just to keep bios to newest one. Having said that, go in to bios, go to exit menu, go to reset bios to optimal/original settings. See if that helps.

 

[jwatson2999]

The bios update for 4.20 was just to let the motherboard use the 9900k cpu. It is never a good idea to update bios just to keep bios to newest one. Having said that, go in to bios, go to exit menu, go to reset bios to optimal/original settings. See if that helps.

So only reason I updated Bios was having issues tweaking RAM to reflect speeds of 3200mhz which I still am. Able to match it with 2933 which I could not before.