Gigabyte Ga945gcms2l User Guide
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Hardware Installation - 21 - 1-7 Internal Connectors Read the following guidelines before connecting external devices: •First make sure your devices are compliant with the connectors you wish to connect. •Before installing the devices, be sure to turn off the devices and your computer. Unplug the power cord from the power outlet to prevent damage to the devices. •After installing the device and before turning on the computer, make sure the device cable has been securely attached to the connector on the motherboard. 1) ATX_12V 2) ATX 3) CPU_FAN 4) SYS_FAN 5) FDD 6) IDE 7) SATAII0 / 1 / 2 / 3 8) PWR_LED 9) BAT 10) F_PANEL 11) F_AUDIO 12) CD_IN 13) SPDIF_O 14) F_USB1 / F_USB2 15) CLR_CMOS 16) C I 2 10 5147 3 6 8 16 1 413 9 11 12 15
GA-945GCM-S2L/S2C Motherboard - 22 - 1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector) With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, first make sure the power supply is turned off and all devices are properly installed. The power connector possesses a foolproof design. Connect the power supply cable to the power connector in the correct orientation. The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected, the computer will not start. •To meet expansion requirements, it is recommended that a power supply that can withstand high power consumption be used (400W or greater). If a power supply is used that does not provide the required power, the result can lead to an unstable or unbootable system. •The main power connector is compatible with power supplies with 2x10 power connectors. When using a 2x12 power supply, remove the protective cover from the main power connector on the motherboard. Do not insert the power supply cable into pins under the protective cover when using a 2x10 power supply. ATX_12V : ATX :Pin No. Definition 1 GND 2 GND 3 +12V 4 +12V Pin No. Definition 13 3.3V 14 -12V 15 GND 16 PS_ON(soft On/Off) 17 GND 18 GND 19 GND 20 -5V 21 +5V 22 +5V 23 +5V (Only for 2x12-pin ATX) 24 GND (Only for 2x12-pin ATX) Pin No. Definition 1 3.3V 2 3.3V 3 GND 4 +5V 5 GND 6 +5V 7 GND 8 Power Good 9 5V SB(stand by +5V) 10 +12V 11 +12V (Only for 2x12-pin ATX) 12 3.3V (Only for 2x12-pin ATX) ATX_12V4 2 3 1 13 124 12 ATX
Hardware Installation - 23 - 5) FDD (Floppy Disk Drive Connector) This connector is used to connect a floppy disk drive. The types of floppy disk drives supported are: 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a floppy disk drive, be sure to locate pin 1 of the connector and the floppy disk drive cable. The pin 1 of the cable is typically designated by a stripe of different color. •Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang. •These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 3/4) CPU_FAN/SYS_FAN (Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 3-pin system fan header (SYS_FAN). Each fan header supplies a +12V power voltage and possesses a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are designed with color-coded power connector wires. A red power connector wire indicates a positive connection and requires a +12V voltage. The black connector wire is the ground wire. The motherboard supports CPU fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. Pin No. Definition 1 GND 2 +12V 3 Sense 4 Speed Control CPU_FAN : Pin No. Definition 1 GND 2 +12V 3 Sense SYS_FAN : 1 1 CPU_FAN SYS_FAN 1 2 33 34
GA-945GCM-S2L/S2C Motherboard - 24 - 6) IDE (IDE Connector) The IDE connector supports up to two IDE devices such as hard drives and optical drives. Before attaching the IDE cable, locate the foolproof groove on the connector. If you wish to connect two IDE devices, remember to set the jumpers and the cabling according to the role of the IDE devices (for example, master or slave). (For information about configuring master/slave settings for the IDE devices, read the instructions from the device manufacturers.) 7) SATAII0/1/2/3 (SATA 3Gb/s Connectors, Controlled by ICH7) The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard. Each SATA connector supports a single SATA device. Pin No. Definition 1 GND 2 TXP 3 TXN 4 GND 5 RXN 6 RXP 7 GND 1 239 40 SATAII0SATAII1 SATAII2SATAII31 7 1 7 1 7 1 7
Hardware Installation - 25 - 8) PWR_LED (System Power LED Header) This header can be used to connect a system power LED on the chassis to indicate system power status. The LED is on when the system is operating. The LED keeps blinking when the system is in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5). Pin No. Definition 1 MPD+ 2 MPD- 3 MPD- System Status LED S0 On S1 Blinking S3/S4/S5 Off 9) BAT(BATTERY) The battery provides power to keep the values (such as BIOS configurations, date, and time information) in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low level, or the CMOS values may not be accurate or may be lost. •Always turn off your computer and unplug the power cord before replacing the battery. •Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with an incorrect model. •Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain about the battery model. •When installing the battery, note the orientation of the positive side (+) and the negative side (-) of the battery (the positive side should face up). •Used batteries must be handled in accordance with local environmental regulations. You may clear the CMOS values by removing the battery: 1. Turn off your computer and unplug the power cord. 2. Gently remove the battery from the battery holder and wait for one minute. (Or use a metal object like a screwdriver to touch the positive and negative terminals of the battery holder, making them short for 5 seconds.) 3. Replace the battery. 4. Plug in the power cord and restart your computer. 1
GA-945GCM-S2L/S2C Motherboard - 26 - 10) F_PANEL (Front Panel Header) Connect the power switch, reset switch, speaker and system status indicator on the chassis front panel to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables. The front panel design may differ by chassis. A front panel module mainly consists of power switch, reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your chassis front panel module to this header, make sure the wire assign- ments and the pin assignments are matched correctly. •PW (Power Switch): Connects to the power switch on the chassis front panel. You may configure the way to turn off your system using the power switch (refer to Chapter 2, BIOS Setup, Power Management Setup, for more information). •SPEAK (Speaker): Connects to the speaker on the chassis front panel. The system reports system startup status by issuing a beep code. One single short beep will be heard if no problem is detected at system startup. If a problem is detected, the BIOS may issue beeps in different patterns to indicate the problem. Refer to Chapter 5, Troubleshooting, for information about beep codes. •HD (IDE Hard Drive Activity LED) Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data. •RES (Reset Switch): Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer if the computer freezes and fails to perform a normal restart. •NC: No connection System Status LED S0 On S1 Blinking S3/S4/S5 Off •MSG (Message/Power/Sleep LED): Connects to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED keeps blinking when the system is in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5). 1 219 20 HD- HD+RES+ RES- NC SPEAK- MSG- MSG+PW- PW+ SPEAK+ Message LED/ Power/ Sleep LED Power Switch Speaker Connector IDE Hard Disk Active LED Reset Switch
Hardware Installation - 27 - 12) CD_IN (CD In Connector) You may connect the audio cable that came with your optical drive to the header. Pin No. Definition 1 CD-L 2 GND 3 GND 4 CD-R 1 11) F_AUDIO (Front Panel Audio Header) The front panel audio header supports Intel High Definition audio (HD) and AC97 audio. You may connect your chassis front panel audio module to this header. Make sure the wire assignments of the module connector match the pin assignments of the motherboard header. Incorrect connection between the module connector and the motherboard header will make the device unable to work or even damage it. For AC97 Front Panel Audio: For HD Front Panel Audio: •The front panel audio header supports HD audio by default. If your chassis provides an AC97 front panel audio module, refer to the instructions on how to activate AC97 functioninality via the audio software in Chapter 5, Configuring 2/4/5.1-Channel Audio. •Audio signals will be present on both of the front and back panel audio connections simultaneously. If you want to mute the back panel audio (only supported when using an HD front panel audio module), refer to Chapter 5, Configuring 2/4/5.1-Channel Audio. •Some chassis provide a front panel audio module that has separated connectors on each wire instead of a single plug. For information about connecting the front panel audio module that has different wire assignments, please contact the chassis manufacturer. Pin No. Definition 1 MIC 2 GND 3 MIC Power 4NC 5 Line Out (R) 6NC 7NC 8 No Pin 9 Line Out (L) 10 NC 1 2 9 10 Pin No. Definition 1 MIC2_L 2 GND 3 MIC2_R 4 -ACZ_DET 5 LINE2_R 6 FAUDIO_JD 7 GND 8 No Pin 9 LINE2_L 10 FAUDIO_JD
GA-945GCM-S2L/S2C Motherboard - 28 - Pin No. Definition 1 Power (5V) 2 Power (5V) 3 USB DX- 4USB DY- 5 USB DX+ 6 USB DY+ 7 GND 8 GND 9 No Pin 10 NC •Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header. •Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power outlet to prevent damage to the USB bracket. 14) F_USB1/F_USB2 (USB Headers) The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer. 13) SPDIF_O (S/PDIF Out Header) This header supports digital S/PDIF out. Via an optional S/PDIF out cable, this header can connect to an audio device that supports digital audio in. For purchasing the optional S/PDIF out cable, please contact the local dealer. 1 9 2 101 Pin No. Definition 1 Power 2 SPDIFO 3 GND Pin 1 (the red wire) of the S/PDIF out cable must align with pin 1 of the SPDIF_O header. Incorrect connection may render the device unusable or even result in damage to the device.
Hardware Installation - 29 - Open: Normal Short: Clear CMOS Values 15) CLR_CMOS (Clearing CMOS Jumper) Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and reset the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two pins for a few seconds. •Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values. •After clearing the CMOS values and before turning on your computer, be sure to remove the jumper cap from the jumper. Failure to do so may cause damage to the motherboard. •After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually configure the BIOS settings (refer to Chapter 2, BIOS Setup, for BIOS configurations). 16) CI (Chassis Intrusion Header) This motherboard provides a chassis detection feature that detects if the chassis cover has been removed. This function requires a chassis with chassis intrusion detection design. Pin No. Definition 1 Signal 2 GND 1