Supermicro P4SC8 User Manual Page 25

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Chapter 2: Installation
2-7
CPU
478 PGA
MCH
CPU FAN
COM2
USB 1/2
Pa
r
allel Po
rt
KB/Mouse WakeUp
WOR
OHFAN
COM 1
VGA
GLAN 1
PCI 1-X
PCI-X 2
PCI 2
SCSI Channel A
BATTERY
BIOS
DIMM 0A
DIMM 0B
DIMM 1B
Watch Dog
FRONT PANEL CTR
BANK0
BANK1
Hance
Rapids
®
JF1
IR
S
u
p
e
r I/O
Ext Speaker
SATA LED
Keylock
JBTL1
24-pin ATX
Conn
S
UPER P4SC8
GLAN 2
PCI 1
DIMM 1A
CHS FAN2
IDE2
K
B
/
M
o
u
s
e
USBWakeUp
Cha Instr.
LAN2 Enable
+12V PWR
PWR Froce On
(North Bridge)
CHS FAN4
CHS FAN3
CPU SPeeds
SATA1
Clear CMOS
USB3/4
VGA Enable
GLAN CTLR
GLAN CTLR
OH Fan Force-On
External SCSI-B
SCSI
VGA
SCSI 1-2 Enable
IDE1
WOL
PWR LED
CHS FAN1
CPU FAN
SATA2
Floppy
SMBus
2-6 Connecting Cables
Power Supply Connectors
The primary power supply connec-
tor (J20) on the P4SC8/P4SCi
meets the SSI (Superset ATX) 24-
pin specification. Refer to the table
on the right for the pin definitions
of the ATX 20-pin power connec-
tor. You must also connect the 4-
pin (J21) processor power con-
nector to your power supply to
provide adequare power to the
CPU. Refer to the table below right
for the J21 (12V) connector. See
the table on the right for the pin
definition.
Pins #
1 & 2
3 & 4
Definition
Ground
+12 V
+12V 4-pin
Connector
(J21)
Required Connection
ATX Power Supply 24-pin Connector
Pin Definitions (J20)
Pin Number Definition
13 +3.3V
14 -12V
15 COM
16 PS_ON#
17 COM
18 COM
19 COM
20 Res(NC)
21 +5V
22 +5V
23 +5V
24 COM
Pin Number Definition
1 +3.3V
2 +3.3V
3 COM
4 +5V
5 COM
6 +5V
7 COM
8 PWR_OK
9 5VSB
10 +12V
11 +12V
12 +3.3V
Additional Connection
24-Pin PWR Connector
+12V PWR Connector
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