Board Parts, Jumpers and Connectors

SMBus 1.1 Connector (J4)

J4

SMBus 1.1 Connector

 

 

 

 

 

 

 

￿￿￿￿

Use this connector to connect external SMBUS devices

 

 

 

 

 

 

Pin 1:

SMBUS_DATA

Pin 2:

GND

 

 

 

 

 

 

Pin 3:

SMBUS_CLK

Pin 4:

NC

 

 

 

 

 

Onboard Buzzer/Speaker header (J14)

J14

Onboard Buzzer/Speaker header

 

 

￿￿

￿￿

 

Close Pin 3 and 4 (Default) - Onboard Buzzer Enabled

￿￿￿￿Open Pin 3 and 4 - Disable onboard buzzer or connect to chassis speaker

Clear CMOS Jumper (J34)

 

J34

Clear CMOS Jumper

 

 

 

 

 

￿

￿￿

 

You can reset CMOS settings by using this jumper if you have lost your

 

(Clear)

system/setup password or need to clear system BIOS setting.

 

There are three easy steps:

 

 

 

￿￿

￿

 

(Default)

Power off system and disconnect all three power connectors from the

 

motherboard

 

 

 

 

 

 

 

 

 

 

Use jumper cap to close Pin 2 and Pin 3 for several seconds to Clear CMOS Put

 

 

 

 

 

jumper cap back to Pin 1 and Pin 2 (default setting)

 

 

 

 

 

Reconnect power & power on system

 

 

 

 

 

NOTE: If you do not disconnect the power connectors from the motherboard the

 

 

 

 

 

CMOS may not clear completely.

 

 

 

 

 

 

PCI-X Slots 3 & 4 Force PCI Mode Jumper (J39)

J39

￿￿

￿￿

PCI-X Slots 3 & 4 Force PCI Mode Jumper

Open - (Default) Allows PCI 3 & 4 to operate in PCI-X mode

Closed - Force PCI slots 3 & 4 to operate in PCI compatibility mode Close this jumper if the card you are using does not support PCI-X

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A26361-D1692-Z121-1-7619, Edition 1

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321 Studios D1692-BXX technical manual SMBus 1.1 Connector J4, Onboard Buzzer/Speaker header J14, Clear Cmos Jumper J34