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SUPERSERVER 6012L-6 User’s Manual
PCI-X Bus Speed Setting
Jumpers P2 and JP4 are used to set
the speed of the PCI-X bus. The
default setting is PCI 66 MHz (the
other settings are to support future
PCI-X cards.) See the table on the
right for jumper settings.
33 MHz PCI Enable/Disable
If you wish to use 33 MHz PCI
cards, close J4 to force the 133
MHz PCI-X slot to run at 33 MHz.
See the table on the right for jumper
settings.
Note: if you force the slots to 33
MHz, you must set the PCI-X Bus
Speed jumpers (above) to the low-
est speed.
Jumper
Position
Open
Closed
Definition
Normal
33 MHz PCI
33 MHz PCI Force
Jumper Settings
(J29/JP4)
SCSI Enable/Disable
The SCSI Enable/Disable jumper at
JA4 allows you to enable or dis-
able the onboard SCSI. The nor-
mal (default) position is enabled.
See the table on the right for
jumper settings.
Jumper
Position
Pins 1-2
Pins 2-3
Definition
Enabled
Disabled
SCSI Enable/Disable
Jumper Settings
(JA4)
SCSI Termination Enable/
Disable
Jumpers JPA1 and JPA2 allow you
to enable or disable termination for
the SCSI connectors. Jumper JPA1
controls SCSI channel A and JPA2
is for SCSI channel B. The normal
(default) setting is open to enable
(teminate) both SCSI channels. See
the table on the right for jumper set-
tings.
Jumper
Position
Open
Closed
Definition
Enabled
Disabled
SCSI Channel Termination
Enable/Disable
Jumper Settings
(JPA1, JPA2)
Default setting is 66 MHz PCI.
PCI-X Slot Bus Speed Settings
Pin Definitions (P2, JP4)
P2
Pins 1-2
Pins 1-2
Pins 2-3
Pins 3-4
Pins 4-5
JP4
Closed
Open
Either (n/a)
Either (n/a)
Either (n/a)
Speed
33 MHz PCI
66 MHz PCI
66 MHz PCI-X
100 MHz PCI-X
133 MHz PCI-X