Bios/Cmos

I have a Compaq Presario SR1303 model #CNH5030FTV, product #PP150AA that was giving me problems. I thought it might be in the bios and looked for the OEM bios setting but could not find the info. I decided to flash the bios but could not find the correct one. So I tried making some generic changes that didn’t work. I then removed the CMOS battery in an attempt to return to factory settings. This didn’t work as well. HELP! What can I do now or can someone steer me to where I could find the OEM setting for this motherboard?

Thanks in advance.