Supermicro SUPERSERVER 6021i, Руководство пользователя

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5-18
S
UPERSERVER 6021i User’s Manual
5-9 Jumper Settings
Explanation of
Jumpers
To modify the operation of the
motherboard, jumpers can be used
to choose between optional set-
tings. Jumpers create shorts be-
t w e e n t w o p i n s t o c h a n g e t h e
function of the connector. Pin 1 is
identified with a square solder pad
on the printed circuit board. See
the motherboard layout pages for
jumper locations.
Connector
Pins
Jumper
Cap
Setting
Pin 1-2 short
Front Side Bus Speed
The FSB speed is set with JP4
and JP5. Table 5-20 displays the
settings for these two jumpers.
T h e C P U s p e e d c a n a l s o b e
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.
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, 1) clear CMOS and reboot
(as described on the next page)
a n d t h e n s e t t h e c o r r e c t C P U
speed with the BIOS setting men-
tioned above.
3 2 1
3 2 1
T able 5-20
Front Side Bus Speed Jum per Settings
(JP4, JP5)
JP4
1-2
2-3
O pen
JP5
1-2
2-3
O pen
FSB Speed
Auto
66 MHz
100 MHz
133 MHz
* Note: T he Auto setting allow s the CPU
to set the speed.
O pen 2-3