Cannot open BIOS

[Klemmring]

Hello, 

My desktop: HP G5434de

Product No. QD474EA#ABD

Serial No. [edited]

It's not possible to call BIOs. Screen says: Keyboard Error. Thre are only 6 USB2-Ports on board for keyboard.

No serial or PS2-Ports.

Windows starts without problems.

What can I do in this case. 

CMOS reset and removing CMOS-battery without success.

Thanks for an answer

[DGroves]

if your existing keyboard is not working replace the keyboard or if using a usb hub connect directly to computer usb port

watch the keyboard on startup, the lights should blink briefly on startup if not bad keyboard or usb port

also, what key are you tapping during power on to enter the bios?  slow keypresses or the wrong key will generate a keyboard error on startup

for most HP systems the bios key you repeatedly tap on startup/reset  is "F10"

[SDH]

Agree with DGroves above.

For others: The OP knows that PS2 keyboards can provide an alternative primitive access into the motherboard startup process. Speed of F10 or ESC pushing... I go at a little slower than 2 presses/second. I've also found that the access to BIOS doing this works best from a "cold boot" rather than a restart. That is, power fully off, press the on button, watch the monitor for any first signs of life and then start pushing at that instant and keep going until you see initial wording on the screen. In some cases you need to keep pushing for longer than you'd expect before you get to that point.

Once I get into BIOS I often add a 5 second delay to the startup process if that is offered in BIOS. Very fast computers can benefit from that because they can move beyond the critical moment for getting into BIOS otherwise.