In case of a CMOS battery replacement, a new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by Alienware. Properly dispose of used batteries as required by the local authorities.
Clear the CMOS memory of date, time and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in the CMOS, which include system setup information.
To clear the CMOS settings follow the steps below.
Turn OFF the computer and unplug the power cord.
Open your system's side panel.
Remove the onboard battery (shown in yellow in Figure 1).
Move the CLRTC jumper cap (circled in Figure 1) from crossing pins 1 and 2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5~10 seconds, then move the cap back to pins 1-2.
Figure 1: CMOS Reset
Reinstall the battery.
Plug the power cord and turn ON the computer.
Hold down the <Delete> during the boot process and enter BIOS setup to re-enter data as necessary.
Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.
Article ID: SLN83268
Last Date Modified: 10/25/2012 12:00 AM
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