Flashing lights on dell xps laptop

hsternstei

Honorable
Nov 30, 2012
2
0
10,510
my laptop dell xps m1210 will not boot up or allow me into its bios. the screen stays black and a #9 light blinks on and off while an "A" light and and ARROW pointing down light blink. the the laptop turns off.

what does this mean and how do I fix it.