Intel MX945GM2 manual Jumpers, Clear Cmos J4

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MX945GM2

1.7 Jumpers

1.7.1Clear CMOS (J4)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM:

1.Turn OFF the computer and unplug the power cord.

2.Remove the onboard battery.

3.Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5~10 seconds, then move the cap back to pins 1-2.

4.Re-install the battery.

5.Plug the power cord and turn ON the computer.

6.Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

Except when clearing the CMOS, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!

Normal (Default)

Clear CMOS

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Contents Ver MX945GM2 User’s Manual Electrical safety User’s Manual MX945GM2 User’s Manual CPU LAN1 Power Type User’s Manual MX945GM2 MX945GM2 Before you Proceed Placement Direction Motherboard OverviewScrew Holes Motherboard Layout Layout Content List Label FunctionInternal Connector Central Processing Unit CPU Installing the CPU MX945GM2 Installing the CPU Heatsink and Fan MX945GM2 Uninstalling the CPU Heatsink and Fan System Memory Dimm Sockets LocationMemory Configurations CPU FSBInstalling a DDR2 Dimm Removing a DDR2 DimmInstalling an Expansion Card Configuring an Expansion CardExpansion Slots Standard Interrupt Assignments IRQPCI Slots PCI Express X16 SlotMini PCI Jumpers Clear Cmos J4Watchdog Timer Output Select J6 3 AT/ATX Power Select J7Lvds Extended Setting J14 5 COM1, COM2 RI/+5V/+12v Selection JP14, JP15Connectors Rear Panel ConnectorsMicrophone port Pink This port connects a microphone ATX Power Connector ATXPWR1 Important notes on the Motherboard Power RequirementsUSB 2.0 Connector CN4, CN5 Serial Port 2 Connector CN6 Serial Port 3 Connector CN7 Serial Port 4 Connector CN8 Front Panel Audio Connector CN16 User’s Manual ATX Power Button/Soft-off Button 2-pin Pwrsw System Panel Connector FPANEL1System Power LED 2-pin Pwrled Reset Button 2-pin ResetPrimary IDE Connector IDE1 IrDA Connector IRCON1 Signal DescriptionAmplifier Connector JAMP1 Optical Drive Audio Connector JCD1 LCD Inverter Connector JBKL1 Signal Description Digital I/O Connector JGPIO1 Digital I/O Connector JGPIO2 Lvds Connector JLVDS1 Serial ATA Connector Black SA1, SA2 SM Bus Connector SMBUS1 Digital Audio Connector SPDIFOUT1 Chassis Fan Connector SFAN1