Pci-X Bus Speed Setting (X5Dl8-Gg); Pci-X Bus Speed Setting (X5Dlr-8G2/X5Dlr-8G2+); 33 Mhz Pci Enable/Disable - Supermicro X5DL8-GG User Manual

PCI-X Bus Speed Setting
(X5DL8-GG)
Jumpers P1, P2, S1 and S2 are
used to change the speeds for the
four PCI-X buses. See the table on
the right for jumper settings.
PCI-X Buses:
S1: Bus for PCI-X slot #1 and SCSI
P1: Bus for PCI-X slots #2 and #3
S2: Bus for PCI-X slots #4 and #5
P2: Bus for PCI-X slot #6 and LAN2
Note: If two cards are used in slots
that share a bus, both slots will run
at 100 MHz (maximum).
PCI-X Bus Speed Setting
(X5DLR-8G2+, X5DLR-8G2)
Jumper P2 is used to change the
speed of the single PCI-X bus on
the motherboard. See the table on
the right for jumper settings.
Note: The PCI-X bus is also tied to
the SCSI controller. If using a 33/66
MHz PCI card in this slot, you will
slow the SCSI speed down to 33 or
66 MHz.

33 MHz PCI Enable/Disable

(X5DL8-GG)
If you wish to use 33 MHz PCI
cards, close J29 to force the P1
bus (slots 2 & 3) to run at 33 MHz.
See the table on the right for jumper
settings.
Note: if you force the slots(s) to 33
MHz, you must set the P1 bus
speed jumpers (above) to the low-
est speed.
PCI-X Slot Bus Speed Settings
Pin
Setting
Pins 1-2
Pins 2-3
Pins 3-4
Pins 4-5
Default setting is PCI-X 100 MHz for all
slots.
PCI-X Slot Bus Speed Settings
Pin
Setting
Pins 1-2
Pins 2-3
Pins 3-4
Pins 4-5
This slot was designed for use with
PCI-X cards - some PCI cards may work
in the slot.
Jumper
Position
Open
Closed
2-19
Chapter 2: Installation
Pin Definitions
(P1, P2, S1, S2)
Speed
PCI 33/66 MHz
PCI-X 66 MHz
PCI-X 100 MHz
PCI-X 133 MHz
Pin Definitions
(P2)
Speed
PCI 33/66 MHz
PCI-X 66 MHz
PCI-X 100 MHz
PCI-X 133 MHz
33 MHz PCI
Enable/Disable
Jumper Settings
(J29)
Definition
Normal
33 MHz PCI