Packard Bell Force 862CDT (12-10641) Settings Faxback Doc. 17479 Connectors and Jumpers Your system's motherboard (main circuit board) contains several connectors and jumpers which can be selected or set differently to give your computer more flexibility. These settings have been set to the factory default which most often gives the best performance. You should not alter these settings unless you have had previous experience with this type of equipment. WARNING: Electro-Static Discharge (ESD) -- Before installing or touching any exposed printed circuit boards, computer parts, chips, etc., make sure that you are properly grounded. This is extremely important, as most internal computer components are highly susceptible to damage from Electro-Static Discharge (ESD). Service technicians ground themselves by wearing an wrist strap (available at electronics supply stores) which is connected to an electrical ground (such as your system's Serial Port A). If you do not have a wrist strap, you can ground yourself and dissipate any electro-static build-up by doing the following: 1. Connect the computer's power cord between the computer and a three-pronged (grounded) electrical outlet. 2. Power to the computer must be turned OFF. 3. Touch, and maintain continuous contact with, an exposed metal surface of the computer system (such as the disk drive mounting tray, the metal surrounding the power supply or the unpainted portions of the computer's rear panel) while handling or touching any internal components, chips, add-on boards or disk drives. Before you begin, make a note of what the original settings are. This way, you can always revert to the original settings if the new settings do not work. J5A2 Flash RCVR 1-2 Normal 2-3 RESERVED SW1E1-8 CPU Clock A OFF: 50/60MHz ON: 66MHz SW1E1-7 CPU Clock B OFF: 50-66MHz ON: 60 SW1E1-6 Clock Frequency Multiplier OFF: 1.5x ON: 2x SW1E1-5 Setup OFF: Enable Setup (default) ON: Disable Setup SW1E1-4 CMOS OFF: Normal (default) ON: RESERVED SW1E1-3 RESERVED OFF: RESERVED ON: Disabled SW1E1-2 ISA Speed OFF: 50MHz ON: 60/66 MHz SW1E1-1 RESERVED OFF: RESERVED ON: RESERVED J1J1 VA/VRE CPU 1-2: 3.3v 2-3: 3.45-3.6v J13G1 Speaker Connector 3-4 IN: Onboard Speaker Enabled (default) Onboard Speaker Disabled Modem / Sound Board JMPBO JMPBO Base Address 1-2 22Xh 2-3 24Xh JMPCFG JMPCFG CONFIG MODE 1-2 EEPROM Setting 2-3 Software Setting Serial Port Setting JM1 JM2 1-2 1-2 Com1 (Default) 2-3 1-2 Com2 1-2 2-3 Com3 2-3 2-3 Com4 Modem IRQ Setting Jumper IRQ2 IRQ3 IRQ4 IRQ5 IRQ11 IRQ12 IRQ15 Default (rcb/all-10/17/95)