Acer Power ST Aspire T300 Service Guide - Page 71

Use the mainboard 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. The illustrations below show a 2-pin jumper. When the jumper cap is placed on both pins, the jumper is SHORT. If you remove the jumper cap, or place the jumper cap on just one pin, the jumper is OPEN. This illustration shows a 3-pin jumper. Pins 1 and 2 are SHORT. 1 23 Checking Jumper Settings The following illustration shows the location of the mainboard jumpers. Pin 1 is labeled. • Chapter 5 65