SUPER MICRO Computer X8SIA-F user manual Cmos Clear, PCI Slot SMB Enable, Clear Cmos JI2C1 JI2C2

Chapter 2: Installation

CMOS Clear

JBT1 is used to clear CMOS. Instead of pins, this "jumper" consists of contact pads to prevent accidental clearing of CMOS. To clear CMOS, use a metal object such as a small screwdriver to touch both pads at the same time to short the connection. Always remove the AC power cord from the system before clearing CMOS.

Note: For an ATX power supply, you must completely shut down the system, remove the AC power cord and then short JBT1 to clear CMOS.

PCI Slot SMB Enable

Use Jumpers I2C1/I2C2 to enable PCI Slot SMB (System Management Bus) support to improve system management for the PCI slots. See the table on the right for jumper settings.

PCI Slot_SMB Enable
Jumper Settings
Jumper Setting	Definition
Short		Enabled
Open (Default)		Disabled

A. Clear CMOS

B.JI2C1

C.JI2C2

		JPI2C
		JPW1
KB/MOUSE		FLOPPY	FAN1
USB0/1 USB2/3	JPUSB1		DIMM2A
			DIMM2B

COM1

VGA

LAN1/LAN2

JPL2 JPL1

DIMM1B DIMM1A DIMM2C

DDR3 1066/1333 UDIMM/RDIMM required	DIMM1C	FAN2/CPUFAN
FAN2

LE1

JLED

JF1

CPU

IPMI_LAN

JF1

FAN5 SLOT7 PCI-E 2.0 (2.5GT/s) X1

B

C

JPB:BMCSLOT6 PCI-E 2.0

SLOT5 PCI-E 2.0 X8

SLOT4 PCI-E2.0X8 IDT 89HI0524G2PS

Hermon

SLOT3 PCI-E 2.0 (2.5GT/s) X1

JPG1

X8SIA	JI2C1	SLOT2 PCI-E 2.0 (2.5GT/s) X4 (IN X8 SLOT)
		JWOL:
	JI2C2	Wake on Lan

SLOT1 PCI 33MHz

USB5

COM2	JWOR
	Wake on Ring	IPMB	USB6/7	USB8/9

PCH

+

USB4	CMOS CLEAR
JBT1

FAN3

+

T-SGPIO1 T-SGPIO2 FAN4 JL1 Chassis Intrusion

JL1:

JD1

JWF1

A

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