Acer Aspire X3475 Acer Aspire X3475 Desktop Service Guide - Page 97

Jumper Setting This section explains how to set the jumper for correct configuration of the main board. Jumpers with more than one pin are numbered. When setting a jumper, ensure that the jumper caps are placed on the correct pins. The following illustration shows the location of CLR_CMOS. The following table shows the settings of the 3-pin CLR_CMOS jumper. Place the jumper cap on pins 1 and 2 to close or short the jumper. Place the jumper cap on pins 2 and 3 to open or clear CMOS. Jumper CMOS1 Type 3-pin Description Clear CMOS Setting (default) 1-2: Close (default) 2-3: Open Before clearing the CMOS, make sure to turn off the system. Chapter 5 89