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Getting Started

CPU (Central Processing Unit)

Introduction to the LGA 1155 CPU

The surface of the LGA 1155 CPU 

has  two  alignment  keys  and  a 

yellow triangle to assist in correctly 

lining  up  the  CPU  for  mainboard 

placement. The yellow triangle is the 

Pin 1 indicator.

Yellow triangle is the 

Pin 1 indicator

Alignment  Key

 Important

Overheating

Overheating can seriously damage the CPU and mainboard. Always make sure the 

cooling fans work properly to protect the CPU from overheating. Be sure to apply an 

even layer of thermal paste (or thermal tape) between the CPU and the heatsink to 

enhance heat dissipation.
Replacing the CPU

When replacing the CPU, always turn off the system’s power supply and unplug the 

power supply’s power cord to ensure the safety of the CPU.
Overclocking

This mainboard is designed to support overclocking. Before attempting to overclock, 

please  make  sure  that  all  other  system  components  can  tolerate  overclocking.  Any 

attempt  to  operate  beyond  product  specifications  is  not  recommend.  MSI  does  not 

guarantee  the  damages  or  risks  caused  by  inadequate  operation  beyond  product 

specifications.

Summary of Contents for MS7797

Page 1: ...board The Series mainboards are based on Intel B75 chipset for optimal system efficiency Designed to fit the advanced Intel LGA1155 processor the Series mainboards deliver a high performance and professional desktop platform solution Chapter 1 Getting Started ...

Page 2: ...handling the mainboard to prevent electrostatic damage If an ESD wrist strap is not available discharge yourself of static electricity by touching another metal object before han dling the mainboard Store the mainboard in an electrostatic shielding container or on an antistatic pad whenever the mainboard is not installed Before turning on the computer ensure that there are no loose screws or metal...

Page 3: ...111E Audio Integrated HD audio codec by Realtek ALC887 6 channel audio with jack sensing SATA 1x SATA 6Gb s port SATA1 by Intel B75 3x SATA 3Gb s ports SATA2 4 by Intel B75 USB 3 0 4x USB 3 0 ports by Intel B75 Connectors Back panel 1x PS 2 mouse port 1x PS 2 keyboard port 4x USB 2 0 ports 2x USB 3 0 ports 1x LAN port 1x HDMI port 1x VGA port 3x audio ports On Board 2x USB 2 0 connectors 2x USB 3 ...

Page 4: ...Getting Started Connectors Quick Guide Back Panel CPU CPU_FAN1 ATX_CPU1 ATX_POWER1 SATA1 F_PANEL1 F_AUDIO1 PCIEX1_2 F_USB2 SATA2 4 ME_LOCK1 DDR3 F_USB1 F_USB30_1 F_USB30_2 JBAT1 PCIEX1_1 PCIEX16_1 CLR_PWD1 ...

Page 5: ...U Cooler Installation 1 9 CPU_FAN1 Fan Power Connector 1 18 DDR3 DDR3 DIMMs 1 14 F_AUDIO1 Front Panel Audio Connector 1 18 F_PANEL1 Front Panel Connector 1 19 F_USB1 2 USB 2 0 Expansion Connectors 1 20 JBAT1 Clear CMOS Jumper 1 21 F_USB30_1 2 USB 3 0 Ports 1 19 ME_LOCK1 Disable ME Jumper 1 21 PCIEX16_1 PCIe x16 Slot 1 16 PCIEX1_1 2 PCIe x1 Slot 1 16 SATA1 SATA 6Gb s Connector 1 17 SATA2 4 SATA 3Gb...

Page 6: ... Right Green Off 10 Mbits sec data rate On 100 Mbits sec data rate Orange On 1000 Mbits sec data rate USB 2 0 Port The USB 2 0 port is for attaching USB 2 0 devices such as keyboard mouse or other USB 2 0 compatible devices USB 3 0 Port USB 3 0 port is backward compatible with USB 2 0 devices It supports data transfer rate up to 5 Gbit s SuperSpeed Important In order to use USB 3 0 devices you mus...

Page 7: ...ed or high definition video plus multi channel digital audio on a single cable VGA Port The DB15 pin female connector is provided for monitor Audio Ports These connectors are used for audio devices The color of the jack refers to the function of the connector Blue Line in Used for connecting external audio outputting devices Green Line out Used as a connector for speakers or headphone Pink Mic Use...

Page 8: ...ct the CPU from overheating Be sure to apply an even layer of thermal paste or thermal tape between the CPU and the heatsink to enhance heat dissipation Replacing the CPU When replacing the CPU always turn off the system s power supply and unplug the power supply s power cord to ensure the safety of the CPU Overclocking This mainboard is designed to support overclocking Before attempting to overcl...

Page 9: ...inboard Unhook and lift the loading lever to the fully open position 1 The loading plate should automatically lift up as the loading lever is pushed to the fully open position Do not touch any of the CPU socket pins 2 Line up the CPU to fit the CPU socket Be sure to hold the CPU by the base with the metal contacts facing downward The alignment keys on the CPU will line up with the edges of the CPU...

Page 10: ...tion tab 5 Evenly spread a thin layer of thermal paste or thermal tape on the top of the CPU This will help in heat dissipation and prevent CPU overheating 6 Locate the CPU fan connector on the mainboard 7 Place the heatsink on the mainboard with the fan s wires facing towards the fanconnectorandthehooksmatching the holes on the mainboard 8 ...

Page 11: ...refer to the documentation in the CPU cooler package for more details about CPU cooler installation Push down on the heatsink until the four clips get wedged into the holes on the mainboard Press the four hooks down to fasten the cooler As each hook locks into position a click should be heard 9 Inspect the mainboard to ensure that the clip ends have been properly locked in place 10 Finally attach ...

Page 12: ...ure the mainboard with the screws provided with your computer case The locations of the screw holes on the mainboard are shown below For more information please refer to the manual that came with the computer case Important Install the mainboard on a flat surface free from unnecessary debris To prevent damage to the mainboard any contact between the mainboard circuitry and the computer case except...

Page 13: ...wer connector 1 3 3 3 V 1 3 3 V 1 4 1 2 V 2 3 3 V 1 5 G r o u n d 3 G r o u n d 1 6 P S O N 4 5 V 1 7 G r o u n d 5 G r o u n d 1 8 G r o u n d 6 5 V 1 9 G r o u n d 7 G r o u n d 2 2 5 V 1 0 1 2 V 2 0 R e s 8 P W R O K 2 3 5 V 1 1 1 2 V 2 1 5 V 9 5 V S B 2 4 G r o u n d 1 2 3 3 V ATX_CPU1 ATX 4 pin Power Connector This connector is used to provide power to the CPU 4 1 2 V 2 G r o u n d 3 1 2 V 1 ...

Page 14: ...ing Dual Channel mode can enhance system performance The following illustrations explain the population rules for Dual Channel mode DIMM1 DIMM2 Important DDR3 memory modules are not interchangeable with DDR2 and the DDR3 standard is not backward compatible Always install DDR3 memory modules in DDR3 DIMM slots To ensure system stability memory modules must be of the same type and density in Dual Ch...

Page 15: ...ff center notch on the bottom that will only allow it to fit one way into the DIMM slot Push the memory module deep into the DIMM slot The plastic clips at each side of the DIMM slot will automatically close when the memory module is properly seat and an audible click should be heard Manually check if the memory module has been locked in place by the DIMM slot s side clips 1 2 3 Notch Volt ...

Page 16: ...terconnect Express Slot The PCIe slot supports the PCIe interface expansion card PCIe 2 0 x1 Slot PCIe 3 0 x16 Slot Important When adding or removing expansion cards always turn off the power supply and unplug the power supply power cable from the power outlet Read the expansion card s documentation to check for any necessary additional hardware or software changes ...

Page 17: ...ude disk drives HDD solid state drives SSD and optical drives CD DVD Blu Ray Please refer to the device s manual for further information Many computer cases also require that large SATA devices such as HDDs SSDs and optical drives be screwed down into the case Refer to the manual that came with your computer case or your SATA device for further installation instructions Please do not fold the SATA...

Page 18: ...l Important Please refer to your processor s official website or consult your vendor to find recom mended CPU cooling fans If there are not enough ports on the mainboard to connect all system fans adapters are available to connect a fan directly to a power supply Before first boot up ensure that there are no cables impeding any fan blades F_AUDIO1 Front Panel Audio Connector This connector allows ...

Page 19: ...D D L E D P o w e r S w i t c h P o w e r L E D 7 9 R e s e r v e d 8 6 4 2 Important On the connectors coming from the case pins marked by small triangles are positive wires JUSB3 USB 3 0 Ports USB 3 0 port is backward compatible with USB 2 0 devices Supports data transfer rate up to 5 Gbit s SuperSpeed USB 3 0 connector Important If you want to use a USB 3 0 device you must use the USB 3 0 cable...

Page 20: ...DDs digital cameras MP3 players printers modems and many others 115V 1 V C C 3 U S B 0 1 0 N C 5 U S B 0 7 G r o u n d 9 N o P i n 8 G r o u n d 6 U S B 1 4 U S B 1 2 V C C The MB layout in this figure is for reference only USB 2 0 Bracket optional Important Note that the VCC and GND pins must be connected correctly to avoid possible damage ...

Page 21: ...figuration set the jumpers to clear the CMOS RAM Keep Data Clear Data 1 1 Important You can clear the CMOS RAM by shorting this jumper while the system is off Afterwards open the jumper Do not clear the CMOS RAM while the system is on because it will damage the mainboard ME_LOCK1 Disable ME Jumper Intel Management Engine ME is an embedded microcontroller located in Intel chipset It provides Intel ...

Page 22: ...rd If you want to clear the BIOS password set the jumper to clear password Normal Clear Password 1 1 Important Please refer to the below steps to clear the password Power off the system Short pins 2 3 Turn on the system to POST screen Shut down the system Short pins 1 2 Boot up the system 1 2 3 4 5 6 ...

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