Acer Aspire X1920 Acer Aspire X1920 Desktop Service Guide - Page 80

Setting Jumper Use the motherboard jumpers to set system configuration options. Jumpers with more than one pin are numbered. When setting the jumpers, ensure that the jumper caps are Placed on the correct pins.Pin 1 is label Jumper CLR_CMOS1 Type 3-pin Description Clear CMOS Setting (default) 1-2: NORMAL 2-3: CLEAR Before clearing theCMOS, make sure toturn off the system. CLR_CMOS1 72 Aspire AX1920 Service Guide