bios blank screen

[tkrow]

I set the aperture size as 4gb and dvmt 2gb in the bios settings. When I saved and restarted it worked in 8bit color(black and white) and 640x480.I can't enter the bios anymore. When I press the f10 key, there is a single beep and it stops.

specs: nvidia 820m 2 gb 64 bit/intel hd 5500

i5-5200u

12 gb ram

bios f46

[Dilip_18]

@tkrow

Welcome to the HP Support Community! I'd like to help!

I see you are experiencing issues with the HP Notebook not booting to Bios using F10.  

The BIOS can be corrupted during normal operation from a failed BIOS upgrade, or damage from a virus.   

Recover the BIOS using a key press combination.

Turn off the computer. Press and hold the Windows + b keys, and continue to press those keys while you press and hold the power button for 2 to 3 seconds. Release the power button, but continue pressing the Windows + b keys.

The power light remains on, and the screen remains blank for about 40 seconds before anything is displayed. You might hear a series of beeps (usually 8 beeps). Eventually, an HP BIOS Update screen is displayed and the BIOS update begins automatically.   

NOTE: If the HP BIOS Update screen is not displayed, press and release the power button, and then immediately press the Windows + b keys at the same time, repeatedly, until the computer beeps or opens the HP BIOS Update screen.

After the BIOS is recovered, a Continue Startup button is displayed and a timer counts down. Click the Continue Startup button to restart the computer immediately, or wait for the computer to restart automatically when the timer reaches zero.

If issue still persist then turn off the PC and keep tapping the Esc key and turn on the PC immediately to enter Bios screen while you keep tapping the Esc key.

Hope this helps! Keep me posted. 

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