![](/images/new-backgrounds/1300318/30031863x1.webp)
microprocessor board
keyboard connector connector (SLOT 1) (KEYBRD)
mouse connector (MOUSE)
USB connectors (USB)
serial port connector (SER1)
parallel port
connector (PARALLEL)
integrated audio controller jacks (LINE OUT,
LINE IN, and MIC IN)
power input connector input connector
(POWER)(J7M1)
battery socket (BT9M1)
microprocessor fan connector (J8L1)
primary EIDE channel connector (PRI IDE)
secondary EIDE channel connector (SEC IDE)
MIDI/game port connector (GAME/AUDIO)
PCI
ISA
(ISA1, ISA2, and ISA3)
SIMM sockets (J6J1,
J6J2, J7J1, and J7J2)
Figure 3-4. System Board Features
control panel connector (J9D1)
SCSI
system board jumpers