Supero SuperServer 5013C-MT, Руководство пользователя

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Chapter 5: Advanced Motherboard Setup
5-17
Front Side Bus Speed
JP1 and JP2 are used to set the sys-
tem (front side) bus speed for the
processors. It is best to keep these
jumpers set to Auto. These jumpers
are used together with the CPU
Clock setting in BIOS. See the table
on the right for jumper settings.
5-10 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.
N o t e : O n a t w o - p i n j u m p e r ,
"Closed" means the jumper is on
both pins and "Open" means the
jumper is either on only one pin or
completely removed.
Connector
Pins
Jumper
Cap
Setting
Pin 1-2 short
3 2 1
3 2 1
CMOS Clear
JBT1 is used to clear CMOS (which will also clear any passwords). Instead of
pins, this jumper consists of contact pads to prevent accidentally clearing the
contents of CMOS.
To clear CMOS, 1) First unplug the power cord(s) 2) With the power disconnected,
short the CMOS pads with a metal object such as a small screwdriver 3) Remove
the screwdriver (or shorting device) 4) Reconnect the power cord(s) and power on the
system.
Note: Do not use the PW_ON connector to clear CMOS.
Front Side Bus Speed
(JP1, JP2)
JP1 JP2
Pins 1-2 Pins 1-2
Pins 2-3 Pins 2-3
NC Pins 2-3
NC NC
Pins 2-3 NC
FSB Speed
Auto
100 MHz (x4)
133 MHz (x4)
Reserved
200 MHz (x4)
Note: NC stands for "No Connection".