BIOS
LAN
CTRL
PCH
LE1
X9DR3-LN4F+/X9DRi-LN4F+
Alaways populate DIMMx1 first
USB9
SAS
CTRL
USB 2/3
JSTBY1
IPMB
1
1
JD1
JF2
LE2
JPB1
JBMC1
Rev. 1.10
JPME1
CPU1
CPU2
CPU1 Slot1 PCI-E 3.0 x16
CPU1 Slot2 PCI-E 3.0 x4 (in X8 slot)
CPU2 Slot6 PCI-E 3.0 x8
CPU2 Slot5 PCI-E 3.0 x16
CPU2 Slot4 PCI-E 3.0 x16
CPU1 Slot3 PCI-E 3.0 x16
Warning: To provide adequate power supply to
the motherboard, be sure to connect the 24-pin
ATX PWR (JPW1) and two 8-pin PWR connec-
tors (JPW2, JPW3) to the power supply. Failure
to do so will void the manufacturer warranty on
your power supply and motherboard.
2-7 Connecting Cables
Power Connectors
A 24-pin main power supply connector(JPW1)
and two 8-pin CPU PWR connectors
(JPW2/3) are located on the motherboard.
These power connectors meet the SSI EPS
12V specication. These power connectors
must also be connected to your power
supply. See the table on the right for pin
denitions.
ATX Power 24-pin Connector
PinDenitions
Pin# Denition Pin # Denition
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 COM 3 COM
16 PS_ON 4 +5V
17 COM 5 COM
18 COM 6 +5V
19 COM 7 COM
20 Res (NC) 8 PWR_OK
21 +5V 9 5VSB
22 +5V 10 +12V
23 +5V 11 +12V
24 COM 12 +3.3V
12V 8-pin PWR Con-
nector
PinDenitions
Pins Denition
1 through 4 Ground
5 through 8 +12V
A. JPW1: 24-pin ATX
PWR (Req'd)
B. JPW2: 8-pin Processor
PWR (Req'd)
C. JPW3: 8-pin Processor
PWR (Req'd)
A
B
C
(Required)