3VDUAL also supplied power to U49 chip, and it was found that there was something wrong with the pin position of U49, and 48 and 49 pins were connected together.
Gigabyte GA-H110M-DS2V REV: 1.0 Power on and power off are very fast. Remove the two capacitors OBC15 and OBC16, and find that 2_ The resistance of 5LEVEL to the ground increases a lot. The resistance at both ends of OBC15 is measured, while the resistance at both ends of OBC16 is infinite. The OBC15 is not installed directly, and it is OK to turn on the machine.
HP M2N68-LA does not have memory repair
ASUS Z87-K does not trigger, and O is found during measurement_ PSON#_ R The line is broken, so the fly line, the fault basis, can be triggered by pulling off the BIOS.
After the triggering of Gigabyte B75-DS3V, power down immediately, replace the TQ9, or remove the TQ8, and the fault is removed.
Gigabyte GA-H110M-DS2V REV: 1.0 Power on and power off are very fast. Remove the two capacitors OBC15 and OBC16, and find that 2_ The resistance of 5LEVEL to the ground increases a lot. The resistance at both ends of OBC15 is measured, while the resistance at both ends of OBC16 is infinite. The OBC15 is not installed directly, and it is OK to turn on the machine.
Mine card P106 was short circuited. Because the 5V feedback resistor was knocked off, the feedback was abnormal. Then the 5V chip generated 12V, which damaged the core power supply composite tube and pex power supply chip. The chip fault was repaired.
Apple workstation 820-2337-A did not trigger. A good G pin was found and replaced. The troubleshooting and maintenance is over.
Troubleshooting of BIOS chip related video card
