How to repair the X79-DELUXE motherboard

X79-DELUXE motherboard

A universal electric meter

From the perspective of the motherboard framework, it uses the INTEL LGA2011 PROCESSOR, which is one of the mainstream architectures at present and is suitable for most high-end gamers. It uses the LGA2011 CPU type, supports DDR3 CHA/CHB/CHC/CHD four-channel memory, plus dual unique interface, supports PCI-E X16/X8/X4 expansion function, and peripheral devices are mainly controlled by PCH chip, external expansion function is more powerful than LGA1150 series.

From the voltage distribution point of view, the voltage stability and the overall efficiency of the main board are improved. Main voltage ATX12V_1/ATX12V_2, +5V, +5VSB_ATX, +3.3V The voltage is output by the ATXPWR power supply interface, and then sent to each module on the mainboard after a series of converters, including +1.5V_DUAL, VTT_DDR for memory power supply. And the CPU power supply VCORE(0.85V~1.7V), +VSA_CPU(0.85V~1.7V), +VTTCPU(1.05V/1.1V), etc.

The whole boot process of the motherboard, a total of 21 steps, cumbersome replacement. From POWEER ON to the generation of PLTRST#, encounter the motherboard NO BOOT, to check from the last stage forward direction, for example, found that PLTRST# signal no output, you should check whether the former signal VSA has a problem, to go forward to find a solution to troubleshoot the fault.

The overall frequency layout of the motherboard is more systematic, mainly provided to each module by CLOCK CHIP-CLOCK Buffe-PCH after BUFFE. When measuring, the HZ gear of the multimeter should be used to check whether the frequency value is normal

During maintenance, the position and measurement method of each voltage point: The multimeter gear measures the bipolar value of each voltage point to the ground. The red number in the figure is the normal bipolar value, for example: PU400 +VCCPLL 471,471 represents the bipolar value, PU400 represents the position of the part, and +VCCPLL represents the signal name; A small bipolar value indicates a short circuit, and a large value indicates an open circuit.

Position and measurement of important signal points of the main board. Multimeter measurement method refer to the measurement method in step 5; After completing the above six steps, I believe that the fault of the motherboard can also be found and solved.