Supermicro SUPERSERVER 6011H, User Manual, Page: 53 / 112

Chapter 5: Installation
5-19
5-10 Jumper Settings
Explanation of
Jumpers
To modify the operation of the
motherboard, jumpers can be
u s e d t o c h o o s e b e t w e e n
o p t i o n a l s e t t i n g s . J u m p e r s
create shorts between two pins
to change the function of the
connector. Pin 1 is identified
w i t h a s q u a r e s o l d e r p a d o n
the printed circuit board. See
the motherboard layout pages
for jumper locations.
N o t e : O n t w o p i n j u m p e r s ,
"Closed" means the jumper is
on both pins and "Open" means
the jumper is off the pins.
Connector
Pins
Jumper
Cap
Setting
Pin 1-2 short
3 2 1
3 2 1
CMOS Clear
Refer to the table on the right for
the jumper settings to clear CMOS.
A l w a y s r e m o v e t h e A C p o w e r
c o r d f r o m t h e s y s t e m b e f o r e
clearing CMOS.
Note: For an ATX power
supply, you must completely shut down the
system, remove the AC power cord and then
use JBT1 to clear CMOS. Replace JBT1 back to
the pin 1-2 position before powering up the
system again. Do not use the PW_ON connec-
tor to clear CMOS.
Position
1-2
Position
2-3
Nor
m
al
CMO
S
Cl
ear
CMOS Clear Jumper Settings
(JBT 1)
Jumper
Position
1-2
2-3
Definition
Normal
CMOS Clear