Supermicro SUPERSERVER 5028D-TN4T, Руководство пользователя

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4-16
SUPERSERVER 5028D-TN4T User's Manual
4-8 Jumper Settings
Explanation of Jumpers
To modify the operation of the
motherboard, 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
circuit board. See the motherboard
layout pages for jumper locations.
Note:
On a two-pin jumper, "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
Setting
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 power down the system and unplug the power cord(s).
2. Remove the onboard CMOS battery.
3. With the power disconnected, short the CMOS pads with a metal object such
as a small screwdriver.
4. Remove the screwdriver (or shorting device).
5. Replace the battery and reconnect the power cord(s).
Note: Do not use the PW_ON connector to clear CMOS.