ECS B75H2-M3 no reset auto power off restart repair

ECS B75H2-M3 no reset power-down restart, directly from the VTT flying line highlights the machine card, troubleshooting.

Machine model: ECS B75H2-M3 V1.0

Fault phenomenon:switch auto power off restart cycle

Maintenance process: the measurement memory, vtt1.05, vccsa, vcroe, 1.8V PLL, 1.5V PCH,VCC are all normal, but reset is not out.I suddenly remember that H61 also has a 1.05vme VCC, which is close to the L20 in the PCI slot.

ECS B75H2-M3 no reset auto power off restart repair Figure 1．

ECS B75H2-M3 no reset auto power off restart repair Figure 2．

It should be 1.05vme VCC, and there is no VCC in the measurement.It was converted by a small chip of 8 pin, and the chip code FL = EF was searched without PDF, so we had to go directly from VTT Jump wire, and the switch was indeed out of code, but the set display did not come out. There were so many problems. Later, we found a CPU problem, and directly added an booting up card, troubleshooting, and maintenance is over.