Intel Desktop Board DH67CL Product Guide 
54 
6.  Replace the cover, plug in the computer, turn on the computer, and allow it to 
boot. 
7.  The computer starts the Setup program.  Setup displays the Maintenance menu.   
8.  Use the arrow keys to select Clear Passwords.  Press <Enter> and Setup displays a 
pop-up screen requesting that you confirm clearing the password.  Select Yes and 
press <Enter>.  Setup displays the maintenance menu again. 
9.  Press <F10> to save the current values and exit Setup. 
10. Turn off the computer.  Disconnect the computer’s power cord from the AC power 
source. 
11. Remove the computer cover. 
12. To restore normal operation, place the jumper on pins 1-2 as shown below. 
 
13. Replace the cover, plug in the computer, and turn on the computer. 
Replacing the Battery 
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory.  When 
the computer is not plugged into a wall socket, the battery has an estimated life of 
three years.  When the computer is plugged in, the standby current from the power 
supply extends the life of the battery.  The clock is accurate to ± 13 minutes/year at 
25 °C with 3.3 VSB applied. 
When the voltage drops below a certain level, the BIOS Setup program settings stored 
in CMOS RAM (for example, the date and time) might not be accurate.  Replace the 
battery with an equivalent one.  Figure 25 on page 59 shows the location of the 
battery. 
  CAUTION 
Risk of explosion if the battery is replaced with an incorrect type.  Batteries should be 
recycled where possible.  Disposal of used batteries must be in accordance with local 
environmental regulations. 
  PRÉCAUTION 
Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect.  Les 
piles usagées doivent être recyclées dans la mesure du possible.  La mise au rebut des 
piles usagées doit respecter les réglementations locales en vigueur en matière de 
protection de l'environnement.