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S
UPER P4SGA/P4SGL/P4SGR/P4SGE User's Manual
SCSI Channel A/B
Termination Enable/Disable
(P4SGR)
Jumpers JPA1 and JPA2 allow you
to enable or disable termination for
the individual SCSI channels.
Jumper JPA1 controls SCSI channel
A and JPA2 controls SCSI channel
B. The normal (default) setting is
open to enable (teminate) both SCSI
channels. If you wish to connect
external SCSI devices, you should
disable termination for the
channnel(s) you will be connecting
them to. See the table on the right
for jumper settings.
Jumper
Position
Open
Closed
Definition
Enabled
Disabled
SCSI Channel Termination
Enable/Disable
Jumper Settings
(JPA1, JPA2)
Chassis/Overheat Fan
Select (P4SGR/P4SGE)
JP3 allows you to select between
use of the Chassis fan and the
Overheat fan. The default position
is open to select the Overheat fan.
The CPU Chassis fan is intended for
use with Supermicro chassis. A
closed jumper setting forces the
chassis fan to always be on. See
the table on the right for jumper set-
tings.
Jumper
Position
Closed
Open
Definition
Chassis Fan
Overheat Fan
Chassis/Overheat Fan
Select Jumper Settings
(JP3)