There are other ways to reset the CMOS. Follow these steps:
important:
If you do not know about electro-static discharge, read
this article.
1. Power down Power Supply Unit or unplug power cable
2. Open system case
3. Search the mainboard and/or mainboard manual for either a CMOS battery or CMOS [reset] jumper/switch.
If
3. CMOS battery is found, remove it for approximately 10 to 15 seconds.
4. Place the CMOS battery back in its holder.
Else
4. If no CMOS battery is found, short-circuit CMOS jumper.
-- Location and instructions can often be found in the mainboard manual.