American Megatrends Atlas PCI-II, User Manual

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Atlas PCI-II Motherboard User’s Guide 26
Step 5 Attach Cables,
Continued
Connect Mouse Cable The mouse connector (J13) is a 10-pin
berg. The mouse cable is the same as the serial
cable in the Atlas PCI-II motherboard. Two serial
cables are shipped with the motherboard. Use one
of these cables for the mouse, or you can make your
own cable using the following pinouts.
Pin Description Pin Description
1 Mouse Clock 2 N/C
3 N/C 4 N/C
5 N/C 6 VCC
7 N/C 8 Mouse Data
9 Ground 10 N/C
Mouse IRQ J38 is a three-pin berg that enables the PS/2 mouse
interrupt (IRQ12). Short Pins 1-2 of J38 to enable
IRQ12 as the PS/2 mouse interrupt. You should
always short Pins 1-2 of J38 to enable the PS/2
mouse interrupt. The only reason you would ever
have to short Pins 2-3 of J38 is if you wanted an
adapter card on the ISA bus to use IRQ12. You
would then have to set the
PS/2 Mouse option in
Advanced Setup to Disabled, and set the IRQ12
option in Advanced Setup to ISA. Enable or disable
the PS/2 mouse by setting the PS/2 Mouse option
in Advanced Setup in WINBIOS Setup to Enabled
or Disabled.
Cont’d