User manual MSI 990FXA-GD80

[. . . ] X) Mainboard  G52-76401XJ Preface Copyright Notice The material in this document is the intellectual property of MICRO-STAR INTERNATIONAL. We take every care in the preparation of this document, but no guarantee is given as to the correctness of its contents. Our products are under continual improvement and we reserve the right to make changes without notice. Trademarks All trademarks in this manual are properties of their respective owners. [. . . ] If your system is in S0 / S1 state, you must install MSI’s application, SuperCharger, to control the JUSB1 . When the application is set to “On”, it can fast charge Smartphone via JUSB1 but the data transmission and synchronization will be disabled. When the application is set to “Off”, the JUSB1 will work as a normal USB connector. In S3 / S4 / S5 state, JUSB1 can still provides fast charging function without operating system, no matter you un-plug and re-plug the Smartphone. 0 Bracket (optional) Important • Note that the pins of VCC and GND must be connected correctly to avoid possible damage. • For iPad , JUSB1 (red mark) can still charge iPad in S3 , S4 , S5 state. € Please note that connecting one device once for stable charging is recommended. € Super-Charger technology would be available on specific models, please refer to MSI website for model support list. € We recommend that don’t disconnect the device when you charge it in S1 state. 0 Bracket (optional) Important • Note that the pins of VCC and GND must be connected correctly to avoid possible damage. IEEE1394 Connector: J1394_1 This connector allows you to connect the IEEE1394 device via an optional IEEE1394 bracket. 1394 Bracket (optional) En-18 115V * The MB layout in this figure is for reference only. Please refer to the TPM security platform manual for more details and usages. TPM module is optional English 115V Serial Port Connector: JCOM1 This connector is a 16550A high speed communication port that sends/ receives 16 bytes FIFOs. D 1 En-19 MS-7640 Mainboard Jumpers Clear CMOS Jumper: JBAT1 There is a CMOS RAM onboard that has a power supply from an external battery to keep the data of system configuration. With the CMOS RAM, the system can automatically boot OS every time it is turned on. If you want to clear the system configuration, set the jumper to clear data. 1 1 1 JBAT1 Keep Data Clear Data Important You can clear CMOS by shorting 2-3 pin while the system is off. Avoid clearing the CMOS while the system is on; it will damage the mainboard. En-20 Buttons This section will explain how to change your motherboard’s function through the use of following buttons. OC Genie Button: TURBO1 English This button is used to auto-overclock for the system. Press this button to enable the OC Genie function when the system is in power off state, meanwhile, the button will light and lock. [. . . ] – DRAM Voltage/ NB Voltage/ CPU Voltage/ CPU-NB Voltage/ CPU PLL Voltage/ SB Voltage/ HT Link Voltage/ DDR Vref Voltage/ CPU DDR-PHY Voltage/ NB PCI-E Voltage/ DDR VTT Voltage These items are used to adjust the voltage of CPU, Memory and chipset. In the sub-menu, these items are used to save the current settings, and you can to load the settings from the stored profile. – OC Retry Count When overclocking has failed, setting this item as [1, 3] will allow system to reboot 1/ 3 times with the same overclocked configuration. If overclocking has failed every time, the system will restore the defaults. [. . . ]