MSI MEG Godlike x570 motherboard - need schematic and boardview. I have accidentally plugged in the wrong usb plug into a usb3.0 connector on front panel of PC resulting in temporarily shorting out the port. (I know it was really stupid, It was dark in my room and was rushing). I shutdown the computer and now after an immediate restart I get an overcurrent error on boot up saying my PC will shut down in 15 seconds. If I let the computer sit for about 35 minutes, I then can boot the PC without getting error. What I am hoping to find out is what parts were affected by my stupidity. Anyone have any insight into this? I dont believe my problem has anything to do with bios corruption as I have seen online in some posts talking about this error. Please help. Thanks.
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there is 6pin ic near every usb port on board. remove that near your problematic usb port -
Thank you for this info. Do you happen to know what the proper part number is so I can replace it? Is it a usblc6-4sc6 per chance?Comment
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Check your board. Next to the usb 3.0 header there will be multiple "multi legged" components (esd filters).
One-or multiple of them got shorted. You can measure them, only one or two of its leg should be shorted to ground. In case if one of em is burned out, you can still read the part number on the other one, cause they are the same.
I only have schematic for the x570 gaming pro carbon. It is using these eight legged variants.
Datasheet: https://www.aosmd.com/res/datasheets/AOZ8829DI-03.pdf
Correction:
*eight legged = ten leggedComment
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Thank you. This is very helpful as I have 10 pin ICs almost in the same exact configuration on my motherboard as you show. it also has 6 pin ICs near each port too so I am a little confused as to what the 6 pin ICs are then. I checked for continuity between the 10 pin ICs and see that they only have continuity for their associated pins like the data sheet shows you posted. the two center pins are grounded and no other pins are shorted to ground. Out of the (6) 10 pin ICs on that side of the board, immediately in front of the usb ports, one actually has a short to ground from a pin next to its ground pin which I think may be my problem. I have 3 ICs per port too just like you show. Can you tell me what the 6 pin ICs are? They are marked as 702 with a dot directly under the zero and after the number is a symbol that looks like the number 7 laying on its side with a dot under it. Unfortunately my iphone camera cannot read the number when I take a pic of it but I can see it clearly under my microscope. Also the part number on the 10 pin ICs is 4G8. Any ideas? Thank you so much.Comment
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Hard to identify them by their three character label, they can be too new to have their datasheet out in the wild. Take a "birdview" shot around the port (like my screenshot about the boardview), that can help to guess if its some sort of driver ic or just an ESD filter. We could compare it to other MSI boards then.
I already repaired a few boards with burnt ESD filters, i just took the replacement ones from donor boards, and all what i care about is to have the same diode layout in their datasheet, and so far, they were all the same. I mean, the 6 legged ones were the same, and the 8 legged ones were the same.Comment
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Never mind, i found your schematic!
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Thank you so much. Part I was looking at with 6 pins was the 2n7002dw N-channel fet. So I believe I was looking at wrong part for TVS. The 10 pins are aoz8829di but my US distributer does not carry Alpha and Omega Semiconductor so I looked up what I think is a compatible alternative from mouser as part number SY205227DVD. It looks like it does the same thing and has similar specs and pinout.Comment
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