1-8User’s Guide1.2.2 Jumper SettingsTable 1-1 lists the system board jumpers with their correspondingsettings and functions.Table 1-1 System Board Jumper SettingsJumper Setting FunctionJP1 1-22-3 *Onboard VGADisabledEnabledJP3 1-2*2-3BIOS TypeAcer BIOSOEM BIOSJP4 1-22-3*Password SecurityCheck passwordBypass passwordJP6 1-2*2-3Cache Size256 KB512 KBJP7 1-2*2-3BIOS ROM TypeBlock ROM (2 Mbit)Flash ROM (Intel 28F001)JP18 1-22-3*LED FunctionsIDE and FDD LEDIDE LED onlyJP19 1-2*2-3External SwitchSuspend buttonReset buttonJP20 1-2 and 4-5*2-3 and 5-6Software ShutdownSoftware shutdownAppears offSee Table 1-2 for the specific settings of jumpers JP8-JP15 and JP17when selecting the CPU type and speed.* Default setting