The HP-450 Notebook PC has drivers posted on the internet, one of the audio driver was Realtek, I installed it on my PC ( I bought FreeDos ) and found out my PC has no sound after two days.
It only back to normal when I disable the window audio driver ( High Definition Audio Device ), only enabling Realtek High Definition Audio. But this doesn't work when connected to TV through HDMI, when they connected it require High Definition Audio Device enabled for the audio to be working on the TV.
Also, the BIOS version posted on the internet makes my machine unbootable after flashing.
Does anyone having same problem with me?