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PCI/ISA System Board
42
1
3
2
Jumper JP5
EPROM Type
Jumper JP5 shoud be set to match the type of the
EPROM installed on the system board. The EPROM
type setting has been set by the manufacturer; do not
change the setting by yourself without manufacturer
authorization.
1
3
2
Jumpers JP2 and JP31
PS/2 Mouse
The G486VPB package includes a card-edge bracket
with serial and mouse port. By default, the mouse port
is disabled. If you intend to use a PS/2 mouse, the port
must be enabled. The PS/2 mouse port uses IRQ12, but
when the PS/2 mouse port is disabled, IRQ12 is avail-
able to other devices. To enable the PS/2 mouse, set
Jumper JP2 pins 1 and 2 to On, and JP31 to Off. Make
sure you connect the PS/2 mouse port to Connector
CN3.
1-2 On: 12V Flash
EPROM 28F010
(Default)
2-3 On: 5V Flash
EPROM 29F010 or
EPROM 27C010
321
JP2
JP31
JP2 2-3 On and JP31 On:
PS/2 Mouse Disabled
(Default)
321
JP2
JP31
JP2 1-2 On and JP31 Off:
PS/2 Mouse Enabled