Supero SUPER 370SWD, User'S And Bios Manual

Page: 40 / 90

2-10
SUPER 370SWD/370SWT/370SWM
Manual
Installation
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.
C o n n e c t o r
P i n s
J u m p e r
C a p
Setting
Pin 1-2 short
Changing the CPU
Speed
Changing the CPU speed is en-
abled by software control in BIOS
(see CPU Speed on page 4-10).
The CPU Speed setting will show
you the actual CPU speed for each
FSB speed option selected. The
FSB speed is set with JP11. See
Table 2-17 for jumper settings.
N o t e : I f t h e s y s t e m d o e s n o t
reboot after changing the CPU
speed, either 1) clear CMOS and
reboot or 2) enable the CPU Safe
Mode (below), change to the cor-
rect speed, then disable the CPU
Safe Mode again.
Table 2-17
Front Side Bus Speed
Jumper Settings (JP11)
J u m p e r
Position
1-2
2-3
O F F
Definition
A u t o
6 6 M H z
1 0 0 M H z
The Auto setting allows the CPU
to set the speed.
CPU Safe Mode (not on
370SWT)
Jumper JP14 enables the CPU
"Safe Mode" setting. When en-
abled, the CPU Core/Bus ratio is
set to run at 2x. See Table 2-18
for jumper settings.
J u m p e r
Position
O n
Off
Definition
E n a b l e d
D i s a b l e d
Table 2-18
CPU Safe Mode
Jumper Settings (JP14)
Note: For 370SWT, JP12 should remain open for
all settings.