Help! Reset Bios Password for Laptop Dell Inspiron 1300

[khajec]

I had to replace my motherboard on a Dell Inspiron 1300 laptop. I bought a used motherboard but get the gray screen when booting asking for a password.
Code on the gray screen is: 6F9Q691-595B

Is there a master code or a chip to reset?

thanks in advance for any help

k