Jumper Settings; Explanation Of Jumpers; Rambus Bus Speed - Supero SUPER P4STA User Manual

S
UPER P4STA User's Manual
2-7

Jumper Settings

Explanation of
Jumpers
To modify the operation of the moth-
erboard, jumpers can be used to
choose between optional settings.
Jumpers create shorts between two
pins to change the function of the
connector. Pin 1 is identified with a
square solder pad on the printed cir-
cuit board. See the motherboard
layout pages for jumper locations.

Rambus Bus Speed

The Rambus speed is set with JP2
and JP2A1.
the settings for these two jump-
ers. The CPU speed can also be
changed by software control in
BIOS (see CPU Speed setting).
The CPU Speed setting will show
you the actual CPU speed for each
FSB speed option selected.
Note: If the system does not
reboot after changing the CPU
speed, 1) clear CMOS and reboot
(as described on the next page)
and then set the correct CPU
speed with the BIOS setting men-
tioned above.
Table 2-16 displays
C o n n e c t o r
J u m p e r
Setting
Front Side Bus Speed Jumper Settings
JP2 JP2A1
1-2 1-2
2-3 Open
Open Open
* Note: The Auto setting allows the CPU
*Note: The Auto setting allows the System to set
to set the speed.
the speed.
2-12
3 2 1
Pins
C a p
3 2
Pin 1-2 short
Table 2-16
(JP2, JP2A1)
Rambus CLK
Auto
300 MHz
400 MHz
1