NEC PowerMate V486 Series Service Manual page 7

viii Contents
List of Figures
1-1 Desktop System Controls and Lamps ............................................................... 1-1
1-2 Desktop Storage Devices and Controls ............................................................ 1-2
1-3 Minitower System Controls and Lamps ........................................................... 1-2
1-4 Minitower Storage Devices and Controls......................................................... 1-3
2-1 Desktop Voltage Selector Switch ..................................................................... 2-2
2-2 Peripherals Connections ................................................................................... 2-3
2-3 Lamps, Reset Button, and Power Button.......................................................... 2-3
2-4 Minitower Voltage Selector Switch.................................................................. 2-5
2-5 Minitower Peripherals Connections ................................................................. 2-6
2-6 Minitower Indicators, Reset Button, and Power Button ................................... 2-6
2-7 Sound Board Connectors .................................................................................. 2-8
2-8 Speaker Connections ........................................................................................ 2-10
2-9 Network Board Connectors .............................................................................. 2-11
2-10 System Board Jumpers...................................................................................... 2-29
2-11 Password Clear Jumper..................................................................................... 2-29
2-12 Secondary Cache Jumpers ................................................................................ 2-30
2-13 Processor Clock Speed Jumper......................................................................... 2-30
2-14 Processor Voltage Jumpers............................................................................... 2-30
2-15 Jumpers JP3 through JP9, JP11, JP21 through JP23 ........................................ 2-31
3-1 Desktop Cover Screws...................................................................................... 3-2
3-2 Removing the Desktop Cover........................................................................... 3-2
3-3 Minitower Cover Screws .................................................................................. 3-3
3-4 Removing the Minitower Cover ....................................................................... 3-4
3-5 Desktop Expansion Slots .................................................................................. 3-5
3-6 Inside Expansion Slot Screw ............................................................................ 3-5
3-7 Removing the L-Bracket................................................................................... 3-6
3-8 Minitower Expansion Slots .............................................................................. 3-7
3-9 Locating SIMM Sockets in the Desktop........................................................... 3-9
3-10 Locating SIMM Sockets in the Minitower ....................................................... 3-10
3-11 Removing a SIMM ........................................................................................... 3-12
3-12 Locating the Notched End of the SIMM........................................................... 3-12
3-13 Inserting the SIMM........................................................................................... 3-13
3-14 Locating the Cache Sockets in the Desktop...................................................... 3-14
3-15 Locating the Cache Sockets in the Minitower .................................................. 3-15
3-16 Aligning the Cache Module.............................................................................. 3-15