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JBAT1: Clear CMOS Jumper
Use this jumper to clear the contents of the CMOS memory. You may need to clear the CMOS memory if the settings in the Setup Utility are incorrect and prevent your mainboard from operating. To clear the CMOS memory, disconnect all the power cables from the mainboard and then move the jumper cap into the CLEAR setting for a few seconds.
Function
Jumper Setting
Normal
Short Pins 1-2
Clear CMOS
Short Pins 2-3
JP1A1, JP1B1: CPU Clock
This jumper enables to select CPU frequency.
CPU Clock
JP1A1
JP1B1
100M
Short Pins 1-2
Short Pins 2-3
133M
Short Pins 2-3
Short Pins 1-2
JP1: DRAM Voltage (VCC)
This jumper enables to select voltage of DRAM.
Function
Jumper Setting
2.5V (DDR)
Open Pins 1-2
3V (SDR)
Short Pins 1-2
J2A/B/C/D, J3A/B/C/D: DDR/SDR DRAM Type Selector
This jumper enables to select the type of DDR or SDR DRAM.
Function
Jumper Setting
DDR1,DDR2
Short all J2A/B/C/D and J3A/B/C/D pins
DIMM1, DIMM2
Open all J2A/B/C/D and J3A/B/C/D pins
JP2: Wake on Keyboard/USB activity
This jumper enables any USB keyboard activity to power up a system previously in a standby or sleep state.
Function
Short Pins 2-3
J13: Flash ROM Voltage (VCC)
This jumper enables to select voltage of flash ROM.
Function
Jumper Setting
5V
Short Pins 1-2
3V
Short Pins 2-3
JP4: Flash ROM Size
This jumper enables to select size of flash ROM.
Function
Jumper Setting
2M
Short Pins 1-2
4M
Short Pins 2-3
The Panel Connector
PANEL1
If there are a headphone jack or/and a microphone jack on the front panel, connect the cables to the PANEL1 on the mainboard.
PANEL2
This panel connector provides a set of switch and LED connectors found on ATX case. Refer to the table below for information.
Device
J16: LAN LED Indicator
This connector is attached to LAN device that needs a LED indicator.
Device
Note: The plus sign (+) indicates a pin which must be connected to a positive volta
J12: Sleep Switch
This header is connected to the sleep button for suspending the computer’s activity if pushing the button. Or, the computer is automatically suspended after passing a period of time.
SPK1: Speaker Connector
Connect the cable from the PC speaker to the SPK1 header on the mainboard.
+5V
USB1/USB2: Front panel USB headers
The mainboard has USB ports installed on the rear edge I/O port array. Some computer cases have a special module that mounts USB ports at the front of the case. If you have this kind of case, use auxiliary USB connectors USB1 and USB2 to connect the fornt-mounted ports the mainboard.
Pi
Note: It supports USB2.0 only when P4X333 NB+VT8235 SB
are installed on the mainboard. If the P4X333
NB+VT8233ACE SB are installed on the mainboard, it
doesn’t support USB 2.0; meanwhile, it doesn’t support the
header USB2, either.
WOL1/WOM1: Wake On LAN/Wake On Modem
If you have installed a LAN card, use the cable provided with the card to plug into the mainboard WOL1 connector. This enables the Wake On LAN (WOL1) feature. When your system is in a power-saving mode, any LAN signal automatically resumes the system. You must enable this item using the Power Management page of the Setup Utility.
If you have installed a modem, use the cable provided with the modem to plug into the mainboard WOM1 connector. This enables the Wake On Modem (WOM1) feature.
When your system is in a power-saving mode, any modem signal automatically resumes the system. You must enable this item using the Power Management page of the Setup Utility. See Chapter 3 for more information.-RING
CD1/2:CD-ROM/DVD Audio Input Connector
If you have installed a CD-ROM drive or DVD-ROM drive, you can connect the drive audio cable to the onboard sound system.
On the mainboard, locate the two 4-pin connectors CD1 and CD2. There are two kinds of connector because different brands of CD-ROM drive have different kinds of audio cable connectors. Connect the cable to the appropriate connector.
CD1
Pin
SIR1: Serial infrared port
The mainboard supports a Serial Infrared (SIR1) data port. Infrared ports allow the wireless exchange of information between your computer and similarly equipped devices such as printers, laptops, Personal Digital Assistants (PDAs), and other computers.
Pin