User manual MSI X79MA-GD45

[. . . ] X) Mainboard Europe version  G52-77381X3 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. [. . . ] To check the voltage, set the voltmeter switch to “DC”, put the positive lead (red) on the postivtive point of the voltage source point and the negative lead (black) on the GND (ground) point. The following table describes the voltage check points. The PCH voltage is the voltage supplied to the Platform Controller Hub. The PLL voltage is the voltage supplied to the process Phase Lock Loop. The DDR memory voltage is the voltage supplied to the DDR memory modules on the mainboard. Lower DDR timings may require higher voltages to maintain system stability. The CPU SA voltage is the voltage supplied to the IMC (Integrated Memory Controller) on the CPU. Higher overclocks may require a higher CPU SA voltage to maintain stability. The CPU IO voltage is the voltage supplied to the Uncore on the CPU. Higher overclocks may require a higher CPU IO voltage to maintain stability. The CPU core voltage is the voltage supplied to the CPU core. Higher overclocks may require higher CPU core voltages to maintain stability. DDR_A/B CPU_SA CPU_IO CPU_CORE En-24 Jumpers Clear CMOS Jumper: JBAT1 There is CMOS RAM onboard that is external powered from a battery located on the mainboard to save system configuration data. With the CMOS RAM, the system can automatically boot into the operating system (OS) every time it is turned on. If you want to clear the system configuration, set the jumpers to clear the CMOS RAM. English 1 1 Keep Data Clear Data Important You can clear the CMOS RAM by shorting this jumper while the system is off. Do not clear the CMOS RAM while the system is on because it will damage the mainboard. Low Temperature Booting Jumper: JCOLD1, JCOLD2 These jumpers are used for liquid nitrogen cooling system to boot at an extreme low temperature. Try to set one or both jumpers to Enabled to increase the boot success rate. Disabled Enabled Important Users will try extreme low temperature overclocking at their own risks. The overclocking results will vary according to the CPU version. en-25 MS-7738 Mainboard LED Status Indicators CPU_PHASE LEDs DIMM_WARNINGLEDs DrMOS_ALARM LED HDD LED CPU_PHASE LEDs These LEDs will change according to CPU loading. [. . . ] To update the BIOS with the Live Update utility: 1. Setup the connection by click the setting button 3. Live Update will automatically detect the version of BIOS and download the appropriate file. Click the confirm button to update the BIOS. [. . . ]