Question Newly built PC will not post after plugin physically broken usb, which posted initially.

[Masum mian]

I recently built a PC. Asus z270p , i3 7100, GTX 1080. Everything from Facebook marketplace. When the first time I put the PC together it posted and there was display output and I enter the BIOS. The keyboard and mouse was working also. Then I prepared a USB for Windows and plugged in to the rear usb port when the PC was in bios. Immediately the bios froze, keyboard and mouse become it unresponsive. Now when I restart the PC it has no display output and a no sign of life on the mouse and keyboard. Did I mangaled the BIOS or it is hardware issue? I tried resetting the CMOS. But no prevail.

 

[Ralston18]

How was the effort to reset CMOS attempted?

Did you follow the process provided in the motherboard's User Guide/Manual?

PSU: make, model, wattage, age, condition (new, refurbished, used?

Make and model: keyboard and mouse - wireless, USB ...?

When the new build fails to boot are there any beep codes or diagnostic LEDs being lit?

 

[Masum mian]

Yes, I reset the CMOS following the manual, now it turn on stops than turn on again.
PSU 650 watt thermaltake old
Keyboard is Dell and mouse is tthe sports talon
There is no beeper or diagnostic LED in the motherboard. I have ordered motherboard speaker from aliexpress. They will arrive in 10 days.
The motherboard Amber lights flashing/ breathing, does it mean something?
Thanks for your help

 

[Masum mian]

Also the USB drives part which is inserted into the port is broken, means it weagles when I pushed it in. Could it kill the motherboard, all did it broke the BIOS?

 

[Masum mian]

How was the effort to reset CMOS attempted?

Did you follow the process provided in the motherboard's User Guide/Manual?

PSU: make, model, wattage, age, condition (new, refurbished, used?

Make and model: keyboard and mouse - wireless, USB ...?

When the new build fails to boot are there any beep codes or diagnostic LEDs being lit?

Yes, I reset the CMOS following the manual, now it turn on stops than turn on again.
PSU 650 watt thermaltake old
Keyboard is Dell and mouse is tthe sports talon
There is no beeper or diagnostic LED in the motherboard. I have ordered motherboard speaker from aliexpress. They will arrive in 10 days.
The motherboard Amber lights flashing/ breathing, does it mean something?
Thanks for your help