The motherboard is likely to be the problem. When you press the power button it triggers a change of state of other circuits in the motherboard, which can be where the problem lies.I never thought about that, but it is possible, very rare probably, but still possible that the power button itself could be the problem. It is very little possibility, but still worth troubleshooting. You can use the multimeter to check the resistance(in ohms) between the 2 cables of the power button(PSW or PW), in 'pressed condition'. If it shows a value close to 0(e.g 0.1ohms), then the power button isn't the problem. Your other option is to use the power button of the GX-781 case. To do so find this connector in the case(see picture) and connect to the motherboard and then press the power button of the GX-781 case.
I'll try thT but what does it mean the SATA will be disabled. Does it mean I won't be able to access the slot
I have a lot of work and other information on my SSD. If possible I'd like to transfer that to mobo. I don't want to make unnecessary purchase such as windows for a new ssd
'The motherboard M.2 slot #2 shares bandwidth with a SATA 6.0 Gb/s port. When the M.2 slot is populated, one SATA 6.0 Gb/s port is disabled.'Found this when I added an m.2 storage.
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