Orange light blinks only once on CPU when I click power button
I don't know anything about these things
Please help me
All of a sudden my cpu fan stopped working, I neglected it for a period of time then when I opened my CPU I was just checking all pins and cleaning it, I don't know how but the hard disk pin was removed by mistake and I didn't notice,when I started my PC it said to check the connection is loose or not, so I checked again and plugged the hard disk pin in the bios(bios was written near the pin on motherboard) of motherboard and when I turned it on it blinked Amer/ orange light once and then dark everything is dark, also when I remove and plug in power supply a green light near Ethernet port blinks
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