Hello, today i managed to ruin my motherboard, its a Z390 Aorus Master from Gigabyte, basically what happened is that i wanted to test a videocard that had 2x 8 PCI power pins , so what i wanted to do is power up the machine with 1 power supply for the processor and the motherboard , and one power supply just for the graphics card ( 2x8 pci pins ) , so when i powered on first the Psu for the 2x8 pins , it shorted out a mosfet.
Ive checked everything with a multimeter and seems fine, also checked the southbridge and its fine , but the problem is i cant read what it writes on the little chip that is burned , the only thing that its readable on the IC is : " 14 5C " , but checked after it and cannot find anything , im guessing its some sort of DC-DC converter or Power supply chip
The board powers on fine with a graphics card that has got no power pins ( normal graphics card that doesnt need aditional power ) , so the motherboard works fineish ...
Can someone help me identify that chip, i would really apreciate it.
I tried to search boardview files but cannot find any for this motherboard
...
Here are some images of the board and the ic that is burned:
Thankyou !
Ive checked everything with a multimeter and seems fine, also checked the southbridge and its fine , but the problem is i cant read what it writes on the little chip that is burned , the only thing that its readable on the IC is : " 14 5C " , but checked after it and cannot find anything , im guessing its some sort of DC-DC converter or Power supply chip
The board powers on fine with a graphics card that has got no power pins ( normal graphics card that doesnt need aditional power ) , so the motherboard works fineish ...
Can someone help me identify that chip, i would really apreciate it.
I tried to search boardview files but cannot find any for this motherboard

Here are some images of the board and the ic that is burned:
Thankyou !
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